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Moreno Trigos Y, Tortajada-Girbés M, Simó-Jordá R, Hernández Pérez M, Hortelano I, García-Ferrús M, Ferrús Pérez MA. Use of Deep-Amplicon Sequencing (DAS), Real-Time PCR and In Situ Hybridization to Detect H. pylori and Other Pathogenic Helicobacter Species in Feces from Children. Diagnostics (Basel) 2024; 14:1216. [PMID: 38928632 PMCID: PMC11203337 DOI: 10.3390/diagnostics14121216] [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: 04/25/2024] [Revised: 05/30/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024] Open
Abstract
BACKGROUND Detecting Helicobacter pylori in fecal samples is easier and more comfortable than invasive techniques, especially in children. Thus, the objective of the present work was to detect H. pylori in feces from children by molecular methods as an alternative for diagnostic and epidemiological studies. METHODS Forty-five fecal samples were taken from pediatric patients who presented symptoms compatible with H. pylori infection. HpSA test, culture, real-time quantitative PCR (qPCR), fluorescence in situ hybridization (FISH), direct viable count associated with FISH (DVC-FISH), and Illumina-based deep-amplicon sequencing (DAS) were applied. RESULTS No H. pylori colonies were isolated from the samples. qPCR analysis detected H. pylori in the feces of 24.4% of the patients. In comparison, DVC-FISH analysis showed the presence of viable H. pylori cells in 53.3% of the samples, 37% of which carried 23S rRNA mutations that confer resistance to clarithromycin. After DAS, H. pylori-specific 16S rDNA sequences were detected in 26 samples. In addition, DNA from H. hepaticus was identified in 10 samples, and H. pullorum DNA was detected in one sample. CONCLUSION The results of this study show the presence of H. pylori, H. hepaticus, and H. pullorum in children's stools, demonstrating the coexistence of more than one Helicobacter species in the same patient. The DVC-FISH method showed the presence of viable, potentially infective H. pylori cells in a high percentage of the children's stools. These results support the idea that fecal-oral transmission is probably a common route for H. pylori and suggest possible fecal-oral transmission of other pathogenic Helicobacter species.
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Affiliation(s)
- Yolanda Moreno Trigos
- Research Institute of Water and Environmental Engineering (IIAMA), Universitat Politècnica de València, 46022 Valencia, Spain; (Y.M.T.); (I.H.)
| | - Miguel Tortajada-Girbés
- Department of Pediatrics, Obstetrics and Gynecology, University of Valencia, 46010 Valencia, Spain;
- Department of Pediatrics, La Fe Polytechnique and University Hospital, 46026 Valencia, Spain
- Foundation for Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), 46020 Valencia, Spain
| | - Raquel Simó-Jordá
- Department of Pediatrics, Obstetrics and Gynecology, University of Valencia, 46010 Valencia, Spain;
- Foundation for Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), 46020 Valencia, Spain
- Department of Pediatrics, University Hospital Doctor Peset, 46017 Valencia, Spain
| | - Manuel Hernández Pérez
- Biotechnology Department, Universitat Politècnica de València, 46022 Valencia, Spain; (M.H.P.); (M.A.F.P.)
| | - Irene Hortelano
- Research Institute of Water and Environmental Engineering (IIAMA), Universitat Politècnica de València, 46022 Valencia, Spain; (Y.M.T.); (I.H.)
| | - Miguel García-Ferrús
- Biotechnology Department, Universitat Politècnica de València, 46022 Valencia, Spain; (M.H.P.); (M.A.F.P.)
| | - María Antonia Ferrús Pérez
- Biotechnology Department, Universitat Politècnica de València, 46022 Valencia, Spain; (M.H.P.); (M.A.F.P.)
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Cao XD, Huang YL, Chen JS, Liao CS. Molecular surveillance of Helicobacter species with high prevalence from two streams with various wastewater pollution in Taiwan. One Health 2024; 18:100757. [PMID: 38803321 PMCID: PMC11128502 DOI: 10.1016/j.onehlt.2024.100757] [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: 09/14/2023] [Accepted: 05/13/2024] [Indexed: 05/29/2024] Open
Abstract
Helicobacter species are potential zoonotic pathogens classified as either enterohepatic or gastric. Helicobacter infection can be transmitted through wastewater from households and livestock and through water from irrigation and streams. In this study, the distribution and source of Helicobacter species in the Donggang and Yenshui rivers, two natural water bodies with different characteristics, were analyzed. A total of 44 water samples were collected over the four seasons. The samples were subjected to Helicobacter 16 s rRNA gene PCR, followed by sequencing and comparison for identification and analysis. The detection rate of Helicobacter species in both rivers was 79.55%, with H. kayseriensis (10/35, 28.57%) being the most common species. Analysis of the environment around the sampling sites showed a high detection rate in the livestock-rich area, and the results of BLAST for species identification and comparison indicated feces as the contamination source. The area around the Donggang River was developed for animal husbandry, led to a high detection rate of Helicobacter species. Many Helicobacter species were identified to have a risk of zoonotic transmission, especially if the stream is used as a source of drinking, agricultural, or even aquacultural water. The high presence of Helicobacter species in natural water bodies suggests that wastewater treatment is an effective strategy to control pathogen spread. Therefore, investigation and monitoring of pathogens in wastewater are highly important. However, methods for the isolation and culture of Helicobacter species in natural waters have yet to be developed. Hence, future research should focus on developing such methods.
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Affiliation(s)
- Xuan-Di Cao
- Institute of Biotechnology and Chemical Engineering, I-Shou University, Kaohsiung 840203, Taiwan
| | - Ya-Ling Huang
- Department of Laboratory Medicine, E-Da Hospital, I-Shou University, Kaohsiung 824005, Taiwan
- Department of Medical Laboratory Science, I-Shou University, Kaohsiung 824005, Taiwan
| | - Jung-Sheng Chen
- Department of Medical Research, E-Da Hospital, I-Shou University, Kaohsiung 824005, Taiwan
| | - Chien-Sen Liao
- Department of Medical Science & Biotechnology, I-Shou University, Kaohsiung 824005, Taiwan
- Institute of Biopharmaceutical Sciences, National Sun Yat-sen University, Kaohsiung 804201, Taiwan
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Ferreira B, Girling S, Guthrie A, Milnes E, Stidworthy MF, Bacon A. MORTALITY AND MORBIDITY REVIEW IN THE UNITED KINGDOM EX SITU POPULATION OF EUROPEAN WILDCATS ( FELIS SILVESTRIS) BETWEEN 2000 AND 2021. J Zoo Wildl Med 2024; 55:369-380. [PMID: 38875193 DOI: 10.1638/2023-0086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/30/2024] [Indexed: 06/16/2024] Open
Abstract
The Scottish population of the European wildcat (Felis silvestris), the only remaining native felid species in the United Kingdom, is critically endangered and was declared functionally extinct by the International Union for Conservation of Nature in 2019. This retrospective study investigated the causes of morbidity and mortality reported in the United Kingdom captive wildcat population from 01 January 2000 to 31 December 2021. The aim was to assess the health and welfare of ex situ wildcats and, by making recommendations for management based on study findings, contribute to the sustainability of the population under managed care. Younger wildcats accounted for 85.7% of all morbidity cases (kittens, 7/77; young adults, 59/77), and the gastrointestinal (67.5% [52/77]), musculoskeletal (10.4% [8/77]), and integumentary (5.2% [4/77]) systems were most affected. Mortality was primarily associated with disease of the gastrointestinal (13.5% [12/89]), respiratory (13.5% [12/89]), neurological (5.6% [5/89]), and renal (5.6% [5/89]) systems. One quarter of all the histopathology examinations reported gastritis with associated Helicobacter-like organisms, often combined with pancreatitis or cholangiohepatitis. Neonates represented 25% (22/89) of all deaths, a high percentage compared with that of previous reviews in other nondomestic felids.
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Affiliation(s)
- Bárbara Ferreira
- Royal Zoological Society of Scotland, Edinburgh Zoo, United Kingdom,
- Zoological Society of London, Regent's Park, London NW1 4RY, United Kingdom
- Royal Veterinary College, University of London, London NW1 0TU, United Kingdom
| | - Simon Girling
- Royal Zoological Society of Scotland, Edinburgh Zoo, United Kingdom
- Royal Zoological Society of Scotland Highland Wildlife Park, Kincraig, Kingussie PH21 1NL, United Kingdom
| | - Amanda Guthrie
- Zoological Society of London, Regent's Park, London NW1 4RY, United Kingdom
| | - Ellie Milnes
- Zoological Society of London, Regent's Park, London NW1 4RY, United Kingdom
| | - Mark F Stidworthy
- International Zoo Veterinary Group, Keighley BD21 4NQ, United Kingdom
| | - Alice Bacon
- Royal Zoological Society of Scotland Highland Wildlife Park, Kincraig, Kingussie PH21 1NL, United Kingdom
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Geng X, Lin R, Hasegawa Y, Chao L, Shang H, Yang J, Tian W, Ma W, Zhuang M, Li J. Effects of Scallop Mantle Toxin on Intestinal Microflora and Intestinal Barrier Function in Mice. Toxins (Basel) 2024; 16:247. [PMID: 38922142 PMCID: PMC11209270 DOI: 10.3390/toxins16060247] [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: 04/23/2024] [Revised: 05/19/2024] [Accepted: 05/22/2024] [Indexed: 06/27/2024] Open
Abstract
Previous studies have shown that feeding mice with food containing mantle tissue from Japanese scallops results in aggravated liver and kidney damage, ultimately resulting in mortality within weeks. The aim of this study is to evaluate the toxicity of scallop mantle in China's coastal areas and explore the impact of scallop mantle toxins (SMT) on intestinal barrier integrity and gut microbiota in mice. The Illumina MiSeq sequencing of V3-V4 hypervariable regions of 16S ribosomal RNA was employed to study the alterations in gut microbiota in the feces of SMT mice. The results showed that intestinal flora abundance and diversity in the SMT group were decreased. Compared with the control group, significant increases were observed in serum indexes related to liver, intestine, inflammation, and kidney functions among SMT-exposed mice. Accompanied by varying degrees of tissue damage observed within these organs, the beneficial bacteria of Muribaculaceae and Marinifilaceae significantly reduced, while the harmful bacteria of Enterobacteriaceae and Helicobacter were significantly increased. Taken together, this article elucidates the inflammation and glucose metabolism disorder caused by scallop mantle toxin in mice from the angle of gut microbiota and metabolism. SMT can destroy the equilibrium of intestinal flora and damage the intestinal mucosal barrier, which leads to glucose metabolism disorder and intestinal dysfunction and may ultimately bring about systemic toxicity.
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Affiliation(s)
- Xiong Geng
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, China; (X.G.); (R.L.); (H.S.); (W.T.); (W.M.); (M.Z.)
| | - Ran Lin
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, China; (X.G.); (R.L.); (H.S.); (W.T.); (W.M.); (M.Z.)
- College of Environmental Technology, Muroran Institute of Technology, Muroran 050-8585, Japan;
| | - Yasushi Hasegawa
- College of Environmental Technology, Muroran Institute of Technology, Muroran 050-8585, Japan;
| | - Luomeng Chao
- College of Animal Science and Technology, Inner Mongolia Minzu University, Tongliao 028000, China;
| | - Huayan Shang
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, China; (X.G.); (R.L.); (H.S.); (W.T.); (W.M.); (M.Z.)
- College of Animal Science and Technology, Inner Mongolia Minzu University, Tongliao 028000, China;
| | - Jingjing Yang
- Kerqin District Testing Institute for Food and Drug Control, Tongliao 028000, China;
| | - Weina Tian
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, China; (X.G.); (R.L.); (H.S.); (W.T.); (W.M.); (M.Z.)
- Kerqin District Testing Institute for Food and Drug Control, Tongliao 028000, China;
| | - Wenting Ma
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, China; (X.G.); (R.L.); (H.S.); (W.T.); (W.M.); (M.Z.)
| | - Miaomiao Zhuang
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, China; (X.G.); (R.L.); (H.S.); (W.T.); (W.M.); (M.Z.)
| | - Jianrong Li
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, China; (X.G.); (R.L.); (H.S.); (W.T.); (W.M.); (M.Z.)
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Akhlaghi H, Javan AJ, Chashmi SHE. Helicobacter pullorum and Helicobacter canadensis: Etiology, pathogenicity, epidemiology, identification, and antibiotic resistance implicating food and public health. Int J Food Microbiol 2024; 413:110573. [PMID: 38246022 DOI: 10.1016/j.ijfoodmicro.2024.110573] [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: 10/19/2023] [Revised: 12/29/2023] [Accepted: 01/07/2024] [Indexed: 01/23/2024]
Abstract
Nowadays, it is well-established that the consumption of poultry meat, especially chicken meat products has been drastically increasing. Even though more attentions are being paid to the major foodborne pathogens, it seems that scientists in the area of food safety and public health would prefer tackling the minor food borne zoonotic emerging or reemerging pathogens, namely Helicobacter species. Recently, understanding the novel aspects of zoonotic Enterohepatic Helicobacter species, including pathogenesis, isolation, identification, and genomic features is regarded as a serious challenge. In this regard, considerable attention is given to emerging elusive zoonotic Enterohepatic Helicobacter species, comprising Helicobacter pullorum and Helicobacter canadensis. In conclusion, the current review paper would attempt to elaborately summarize and somewhat compare the etiology, pathogenesis, cultivation process, identification, genotyping, and antimicrobial resistance profile of both H. pullorum and H. Canadensis. Further, H. pullorum has been introduced as the most significant food borne pathogen in chicken meat products.
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Affiliation(s)
- Hosein Akhlaghi
- Faculty of Veterinary Medicine, Semnan University, Semnan, Iran
| | - Ashkan Jebelli Javan
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Semnan University, Semnan, Iran.
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Xu L, Liu X, Wu Q, Hua ZL, Yang F, Zhang JF. Phylogenetic analysis of pathogenic genes in Helicobacter species. Shijie Huaren Xiaohua Zazhi 2024; 32:58-70. [DOI: 10.11569/wcjd.v32.i1.58] [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: 11/10/2023] [Revised: 12/01/2023] [Accepted: 01/11/2024] [Indexed: 01/26/2024] Open
Abstract
BACKGROUND Helicobacter bacteria are associated with gastrointestinal diseases, especially Helicobacter pylori (H. pylori). With the isolation of many non-Helicobacter pylori Helicobacters (NHPH) from the liver, intestines, and gallbladder of natural animal reservoirs, NHPH have been potential zoonotic pathogens, but their infection and pathogenic mechanisms are still unclear.
AIM To explore the phylogenetic relationship of Helicobacter species based on their pathogenic genes.
METHODS The present study collected the genomic sequences of 50 strains in genus Helicobacter, including 12 strains of H. pylori and 38 strains of NHPH. Based on 16S rRNA gene and several pathogenic genes (flagella, urease, and virulence factors), MAGA software (Version 11.0) was used to align their sequences and construct phylogenetic trees.
RESULTS The phylogenetic tree of 16S rRNA gene showed that gastric Helicobacter (GH) and enterohepatic Helicobacter species (EHS) were clustered into two large branches, respectively. All of the GH's hosts were mammals, while the hosts of EHS were many wild poultry and mammals. Based on the flagella motility-related genes (flaA, flaB, fliP, fliQ, fliR, fliG, fliM, and fliN), the phylogenetic trees were divided into two major branches (GH and EHS). Similarly, the phylogenetic trees of lipopolysaccharide (LPS) biosynthesis-related genes (lptA, waaC, and waaF) presented two major branches (GH and EHS), too. The urease genes existed in all of the 12 strains of H. pylori, 13 strains of gastric NHPH, and 4 strains of EHS (H. hepaticus, H. muridarum, H. bilis, and H. anseris). However, no significant phylogenetic patterns of GH and EHS were observed in the seven urease genes (ureA, ureB, ureE, ureF, ureG, ureH, and ureI).
CONCLUSION The phylogenetic relationship of Helicobacter species' pathogenic genes is dominated distinctly by the special colonization areas including gastric and enterohepatic niches.
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Affiliation(s)
- Le Xu
- School of Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
| | - Xing Liu
- School of Life Sciences, Nanjing Normal University, Nanjing 210023, Jiangsu Province, China
| | - Qi Wu
- Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Zhao-Lai Hua
- Institute of Tumor Prevention and Control, People's Hospital of Yangzhong City, Zhenjiang 212299, Jiangsu Province, China
| | - Fei Yang
- School of Life Sciences, Nanjing Normal University, Nanjing 210023, Jiangsu Province, China
| | - Jun-Feng Zhang
- School of Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
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Lopez-Cantillo M, Vidal-Veuthey B, Mella A, de la Haba RR, Collado L. Helicobacter ibis sp. nov., isolated from faecal droppings of black-faced ibis ( Theristicus melanopis). Int J Syst Evol Microbiol 2023; 73. [PMID: 38015044 DOI: 10.1099/ijsem.0.005983] [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] [Indexed: 11/29/2023] Open
Abstract
As part of a larger study on Epsilonproteobacteria carried by wild birds in the city of Valdivia (southern Chile), two curved rod-shaped Gram-stain-negative strains (A82T and WB-40) were recovered from faecal samples and subjected to a taxonomic study. Results of a genus-specific PCR showed that these isolates belonged to the genus Helicobacter. Further identification by 16S rRNA and hsp60 (60 kDa heat-shock protein) gene sequence analysis revealed that they formed a separate phylogenetic clade, different from other known Helicobacter species with 'Helicobacter burdigaliensis' CNRCH 2005/566HT and Helicobacter valdiviensis WBE14T being the most closely related species. This was confirmed by core-genome phylogeny as well as digital DNA-DNA hybridization and average nucleotide identity analyses between the genomes of strains A82T and WB-40 and all other Helicobacter species. The draft genome sequences of A82T and WB-40, obtained by Illumina NextSeq 2000 sequencing, consisted of 1.6 Mb with a G+C content of 31.9-32.0 mol%. The results obtained from the phylogenetic and genomic characterization, together with their different morphological and biochemical features, revealed that these two strains represent a novel species, for which we propose the name Helicobacter ibis sp. nov. with A82T (=LMG 32718T=CCCT 22.04T) as the type strain.
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Affiliation(s)
- Mónica Lopez-Cantillo
- Institute of Biochemistry and Microbiology, Faculty of Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Boris Vidal-Veuthey
- Institute of Biochemistry and Microbiology, Faculty of Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Armin Mella
- Institute of Biochemistry and Microbiology, Faculty of Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Rafael R de la Haba
- Department of Microbiology and Parasitology, Faculty of Pharmacy, University of Sevilla, Sevilla, Spain
| | - Luis Collado
- Institute of Biochemistry and Microbiology, Faculty of Sciences, Universidad Austral de Chile, Valdivia, Chile
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Sun Q, Yuan C, Zhou S, Lu J, Zeng M, Cai X, Song H. Helicobacter pylori infection: a dynamic process from diagnosis to treatment. Front Cell Infect Microbiol 2023; 13:1257817. [PMID: 37928189 PMCID: PMC10621068 DOI: 10.3389/fcimb.2023.1257817] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 10/05/2023] [Indexed: 11/07/2023] Open
Abstract
Helicobacter pylori, a gram-negative microaerophilic pathogen, causes several upper gastrointestinal diseases, such as chronic gastritis, peptic ulcer disease, and gastric cancer. For the diseases listed above, H. pylori has different pathogenic mechanisms, including colonization and virulence factor expression. It is essential to make accurate diagnoses and provide patients with effective treatment to achieve positive clinical outcomes. Detection of H. pylori can be accomplished invasively and noninvasively, with both having advantages and limitations. To enhance therapeutic outcomes, novel therapeutic regimens, as well as adjunctive therapies with probiotics and traditional Chinese medicine, have been attempted along with traditional empiric treatments, such as triple and bismuth quadruple therapies. An H. pylori infection, however, is difficult to eradicate during treatment owing to bacterial resistance, and there is no commonly available preventive vaccine. The purpose of this review is to provide an overview of our understanding of H. pylori infections and to highlight current treatment and diagnostic options.
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Affiliation(s)
- Qifang Sun
- School of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, China
- Hunan Provincial Key Laboratory of Traditional Chinese Medicine (TCM) Diagnostics, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Chengzhi Yuan
- Hunan Provincial Key Laboratory of Traditional Chinese Medicine (TCM) Diagnostics, Hunan University of Chinese Medicine, Changsha, Hunan, China
- School of Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Sainan Zhou
- The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Jing Lu
- School of Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Meiyan Zeng
- School of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Xiong Cai
- School of International Education, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Houpan Song
- School of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, China
- Hunan Provincial Key Laboratory of Traditional Chinese Medicine (TCM) Diagnostics, Hunan University of Chinese Medicine, Changsha, Hunan, China
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He Z, Zhu H, Liu J, Kwek E, Ma KY, Chen ZY. Mangiferin alleviates trimethylamine- N-oxide (TMAO)-induced atherogenesis and modulates gut microbiota in mice. Food Funct 2023; 14:9212-9225. [PMID: 37781894 DOI: 10.1039/d3fo02791k] [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: 10/03/2023]
Abstract
Trimethylamine-N-oxide (TMAO), originating from dietary trimethylamine-containing nutrients such as choline, has been recognized as a risk factor for atherosclerosis. Mangiferin is a bioactive xanthone initially extracted from mango (Mangifera indica). The present study aimed to investigate the effect of mangiferin on TMAO-induced atherogenesis in mice fed a high-choline diet. Female ApoE-/- mice were randomly divided into three groups and fed either a control diet, a high-choline diet with 1% free choline, or an experimental diet with 1% free choline plus 0.5% mangiferin for 15 weeks. Our results showed that a high-choline diet elevated plasma TMAO levels, accelerated atherogenesis, promoted cholesterol accumulation, and reduced the generation of short-chain fatty acids (SCFAs) by gut microbes. Mangiferin alleviated inflammation, and lowered plasma total cholesterol levels by facilitating the elimination of neutral and acidic sterols in feces, resulting in a 16.7-29.0% reduction in aortic atherosclerotic lesions. Notably, mangiferin could favorably remodel the composition of the gut microbiota by fostering the growth of the beneficial taxa Akkermansia, Parabacteroides, and Bifidobacteriaceae, while reducing the relative abundance of the pathogenic genus Helicobacter. This modulation led to a decrease in plasma lipopolysaccharide levels, enhanced the production of total SCFAs by gut microbes, and reduced susceptibility to atherosclerosis. In conclusion, mangiferin exhibited its ability to alleviate TMAO-induced atherosclerosis through its anti-inflammatory, cholesterol-lowering, and gut microbial modulatory activities.
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Affiliation(s)
- Zouyan He
- School of Public Health, Guangxi Medical University, Nanning, 530021, Guangxi, China.
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, NT, China.
| | - Hanyue Zhu
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, NT, China.
- School of Food Science and Engineering/South China Food Safety Research Center, Foshan University, Foshan, Guangdong, China
| | - Jianhui Liu
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, 210023, China
| | - Erika Kwek
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, NT, China.
| | - Ka Ying Ma
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, NT, China.
| | - Zhen-Yu Chen
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, NT, China.
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Segawa T, Ohno Y, Kurita M, Ishibashi T, Yoshioka M. Helicobacter delphinicola infection and the risk of gastric disease in common bottlenose dolphin. DISEASES OF AQUATIC ORGANISMS 2023; 155:187-192. [PMID: 37767885 DOI: 10.3354/dao03751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
Gastritis and gastric ulcers are well-recognized conditions in cetaceans; bacteria of the genus Helicobacter are considered the primary cause of these diseases. Dolphins have been shown to be susceptible to infection by at least 2 gastric species of Helicobacter, H. cetorum and H. delphinicola, both of which are closely related to the human pathogen H. pylori. In the present study, we evaluated the carriage rate and relationship to gastric disease of H. cetorum and H. delphinicola, based on a study population of 82 dolphins maintained at 21 facilities in Japan. Of these 82 dolphins, 79 (96.3%) and 45 (54.9%) were positive for H. cetorum and H. delphinicola, respectively; H. delphinicola infection was significantly associated with chronic gastric diseases (odds rate: 5.9; 95% CI: 2.1-16.9), but no such association was detected for H. cetorum. Of the 21 facilities, 20 (95%) and 11 (55%) housed H. cetorum- and H. delphinicola-positive dolphins, respectively, and our study suggested that the transmission between dolphins occurs quickly within pools. These findings indicate that methods will need to be established to prevent the transmission of Helicobacter infections within facilities housing dolphins.
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Affiliation(s)
- Takao Segawa
- Cetacean Research Center, Graduate School of Bioresources, Mie University, 1577 Kurimamachiya, Tsu, Mie 514-8507, Japan
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Wang H, Gu Y, Zhou G, Chen X, Zhang X, Shao Z, Zhang M. Helicobacter zhangjianzhongii sp. nov., isolated from dog feces. Front Genet 2023; 14:1240581. [PMID: 37823030 PMCID: PMC10562538 DOI: 10.3389/fgene.2023.1240581] [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: 07/03/2023] [Accepted: 09/15/2023] [Indexed: 10/13/2023] Open
Abstract
In 2019, two distinct bacterial isolates were independently isolated from the fecal samples of separate dogs in Beijing, China. These cells exhibit microaerobic, are Gram-negative, motile, and possess a characteristic spiral shape with bipolar single flagellum. They display positive results for the oxidase test while being negative for both catalase and urease. These organisms measure approximately 0.2-0.3 μm in width and 4.5-6 μm in length. The colonies are wet, flat, grey, circular, and smooth with sizes ranging from 1 to 2 mm in diameter after 2 days of growth. However, strains may exhibit variations in size and morphology following extended incubation. Phylogenetic analyses based on the 16S rRNA gene and core genome indicated that these two isolates belong to the genus Helicobacter and formed a robust clade that was remains distinctly separate from currently recognized species. These two isolates shared low dDDH relatedness and ANI values with their closest species Helicobacter canis CCUG 32756T, with these values falling below the commonly cutoff values for strains of the same species. The genomic DNA G + C contents of strain XJK30-2 were 44.93 mol%. Comparing the phenotypic and phylogenetic features between these two isolates and their closely related species, XJK30-2 represents a novel species within the genus Helicobacter, for which the name Helicobacter zhangjianzhongii sp. nov. (Type strain XJK30-2T = GDMCC 1.3695T) is proposed.
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Affiliation(s)
| | | | | | | | | | | | - Maojun Zhang
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
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Lemos FFB, Silva Luz M, Rocha Pinheiro SL, Teixeira KN, Freire de Melo F. Role of non- Helicobacter pylori gastric Helicobacters in helicobacter pylori-negative gastric mucosa-associated lymphoid tissue lymphoma. World J Gastroenterol 2023; 29:4851-4859. [PMID: 37701138 PMCID: PMC10494762 DOI: 10.3748/wjg.v29.i32.4851] [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: 05/28/2023] [Revised: 07/18/2023] [Accepted: 08/02/2023] [Indexed: 08/25/2023] Open
Abstract
Marginal zone lymphomas rank as the third most prevalent form of non-Hodgkin B-cell lymphoma, trailing behind diffuse large B-cell lymphoma and follicular lymphoma. Gastric mucosa-associated lymphoid tissue lymphoma (GML) is a low-grade B-cell neoplasia frequently correlated with Helicobacter pylori (H. pylori)-induced chronic gastritis. On the other hand, a specific subset of individuals diagnosed with GML does not exhibit H. pylori infection. In contrast to its H. pylori-positive counterpart, it was previously believed that H. pylori-negative GML was less likely to respond to antimicrobial therapy. Despite this, surprisingly, in-creasing evidence supports that a considerable proportion of patients with H. pylori-negative GML show complete histopathological remission after bacterial eradication therapy. Nonetheless, the precise mechanisms underlying this treatment responsiveness are not yet fully comprehended. In recent years, there has been growing interest in investigating the role of non-H. pylori gastric helicobacters (NHPHs) in the pathogenesis of H. pylori-negative GML. However, additional research is required to establish the causal relationship between NHPHs and GML. In this minireview, we examined the current understanding and proposed prospects on the involvement of NHPHs in H. pylori-negative GML, as well as their potential response to bacterial eradication therapy.
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Affiliation(s)
- Fabian Fellipe Bueno Lemos
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029094, Brazil
| | - Marcel Silva Luz
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029094, Brazil
| | - Samuel Luca Rocha Pinheiro
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029094, Brazil
| | | | - Fabrício Freire de Melo
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029094, Brazil
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13
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Lin X, Wang M, He Z, Hao G. Gut microbiota mediated the therapeutic efficiency of Simiao decoction in the treatment of gout arthritis mice. BMC Complement Med Ther 2023; 23:206. [PMID: 37344836 DOI: 10.1186/s12906-023-04042-4] [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: 02/20/2023] [Accepted: 06/15/2023] [Indexed: 06/23/2023] Open
Abstract
BACKGROUND Gut microbiota plays a significant role in the development and treatment of gouty arthritis. Simiao decoction has been shown to alleviate gouty arthritis by inhibiting inflammation, regulating NLRP3 inflammasome, and altering gut microbiota. However, there is no evidence to prove whether gut microbiota directly mediates the therapeutic efficiency of Simiao decoction in treating gout arthritis. METHODS In this study, fecal microbiota transplantation (FMT) was used to transfer the gut microbiota of gout arthritis mice treated with Simiao decoction or allopurinol to blank gout arthritis mice, in order to investigate whether FMT had therapeutic effects on gout arthritis. RESULTS Both Simiao decoction and allopurinol effectively reduced the levels of serum uric acid, liver XOD activity, foot thickness, serum IL-1β, and G-CSF in gout arthritis mice. However, Simiao decoction also had additional benefits, including raising the pain threshold, reducing serum TNF-α and IL-6, alleviating gut inflammation, and repairing intestinal pathology, which were not observed with allopurinol treatment. Moreover, Simiao decoction had a greater impact on gut microbiota than allopurinol, as it was able to restore the abundance of phylum Proteobacteria and genus Helicobacter. After transplantation into gout arthritis mice, gut microbiota altered by Simiao decoction exhibited similar therapeutic effects to those of Simiao decoction, but gut microbiota altered by allopurinol showed no therapeutic effect. CONCLUSIONS These findings demonstrates that Simiao decoction can alleviate gout arthritis symptoms by regulating gut microbiota.
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Affiliation(s)
- Xiaoying Lin
- Department of Plastic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
- Institute of Basic Research in Clinical Medicine, School of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Mingzhu Wang
- Institute of Basic Research in Clinical Medicine, School of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Zhixing He
- Institute of Basic Research in Clinical Medicine, School of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Guifeng Hao
- Institute of Basic Research in Clinical Medicine, School of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
- Center for General Practice Medicine, Department of Rheumatology and Immunology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, 310014, China.
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Concha-Toloza M, Lopez-Cantillo M, Molina-Mora JA, Collado L. Genomic Characterization of Antibiotic-Resistant Campylobacterales Isolated from Chilean Poultry Meat. Antibiotics (Basel) 2023; 12:antibiotics12050917. [PMID: 37237819 DOI: 10.3390/antibiotics12050917] [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: 03/21/2023] [Revised: 05/11/2023] [Accepted: 05/13/2023] [Indexed: 05/28/2023] Open
Abstract
Due to the lack of knowledge about Campylobacterales in the Chilean poultry industry, the objective of this research was to know the prevalence, resistance, and genotypes of Campylobacter, Arcobacter and Helicobacter in 382 samples of chicken meat purchased in Valdivia, Chile. The samples were analyzed using three isolation protocols. Resistance to four antibiotics was evaluated by phenotypic methods. Genomic analyses were performed on selected resistant strains to detect resistance determinants and their genotypes. A total of 59.2% of the samples were positive. Arcobacter butzleri (37.4%) was the most prevalent species, followed by Campylobacter jejuni (19.6%), C. coli (11.3%), A. cryaerophilus (3.7%) and A. skirrowii (1.3%). Helicobacter pullorum (14%) was detected by PCR in a subset of samples. Campylobacter jejuni was resistant to ciprofloxacin (37.3%) and tetracycline (20%), while C. coli and A. butzleri were resistant to ciprofloxacin (55.8% and 2.8%), erythromycin (16.3% and 0.7%) and tetracycline (4.7% and 2.8%), respectively. Molecular determinants were consistent with phenotypic resistance. The genotypes of C. jejuni (CC-21, CC-48, CC-49, CC-257, CC-353, CC-443, CC-446 and CC-658) and C. coli (CC-828) coincided with genotypes of Chilean clinical strains. These findings suggest that besides C. jejuni and C. coli, chicken meat could play a role in the transmission of other pathogenic and antibiotic-resistant Campylobacterales.
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Affiliation(s)
- Macarena Concha-Toloza
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 5110566, Chile
| | - Mónica Lopez-Cantillo
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 5110566, Chile
| | - Jose Arturo Molina-Mora
- Centro de Investigación en Enfermedades Tropicales (CIET) & Facultad de Microbiología, Universidad de Costa Rica, San José 11501-2060, Costa Rica
| | - Luis Collado
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 5110566, Chile
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Gruntar I, Kostanjšek R, Pirš T, Papić B. Helicobacter colisuis sp. nov., isolated from caecal contents of domestic pigs (Sus scrofa domesticus). Int J Syst Evol Microbiol 2022; 72. [DOI: 10.1099/ijsem.0.005600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Seven
Helicobacter
-like isolates were cultured from caecal contents of 100 domestic pigs (Sus scrofa domesticus) sampled as part of the EFSA-coordinated harmonized monitoring of antimicrobial resistance in
Campylobacter
sp. in 2015. The bacteria were isolated using the standard ISO 10272 procedure for the isolation of thermotolerant
Campylobacter
with extended incubation time and formed small, grey, moist and flat colonies with a metallic sheen (small
Campylobacter
-like colonies) on modified Charcoal-Cefoperazone-Deoxycholate Agar (mCCDA) and Skirow agar plates. Morphologically, the bacterial cells were spirilli-shaped and highly motile, 1–2 µm long and ≤0.5 µm wide, Gram-negative, oxidase-positive and catalase-positive. They could not be identified using the standard-prescribed biochemical tests and had uniform, unique and reproducible MALDI-TOF mass spectra that most closely matched those of
Helicobacter pullorum
. Three strains (11154-15T, 14348–15 and 16470–15) underwent whole-genome sequencing. Analysis of 16S rRNA gene sequences revealed a high similarity (≥99.8 % identity) to
Helicobacter canadensis
. Pairwise average nucleotide identity (ANI) values revealed that the three studied strains were closely related (ANI ≥98.9 %), but distinct from the previously described
Helicobacter
species (ANI ≤90.6 %). The core genome-based phylogeny confirmed that the new strains form a distinct clade most closely related to
H. canadensis
. The conducted polyphasic taxonomic analysis confirmed that the three strains represent a novel
Helicobacter
species for which the name Helicobacter colisuis sp. nov. is suggested, with strain 11154-15T (= DSM 113688T = CCUG 76053T) as the type strain.
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Affiliation(s)
- Igor Gruntar
- University of Ljubljana, Veterinary Faculty, Institute of Microbiology and Parasitology, Ljubljana, Slovenia
| | - Rok Kostanjšek
- Department of Biology, University of Ljubljana, Biotechnical Faculty, Ljubljana, Slovenia
| | - Tina Pirš
- University of Ljubljana, Veterinary Faculty, Institute of Microbiology and Parasitology, Ljubljana, Slovenia
| | - Bojan Papić
- University of Ljubljana, Veterinary Faculty, Institute of Microbiology and Parasitology, Ljubljana, Slovenia
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Fjordside L, Herløv C, Drabe CH, Andersen LP, Katzenstein TL. Helicobacter trogontum Bacteremia and Lower Limb Skin Lesion in a Patient with X-Linked Agammaglobulinemia-A Case Report and Review of the Literature. Pathogens 2022; 11:1247. [PMID: 36364998 PMCID: PMC9696073 DOI: 10.3390/pathogens11111247] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/14/2022] [Accepted: 10/20/2022] [Indexed: 06/29/2024] Open
Abstract
We describe the first case of infection with Helicobacter trogontum in a patient with X-linked agammaglobulinemia. A 22-year-old male with X-linked agammaglobulinemia presented with fever, malaise and a painful skin lesion on the lower left extremity. Spiral shaped Gram-negative rods were isolated from blood cultures and later identified as Helicobacter trogontum. The patient was treated with various intravenous and oral antibiotic regimens over a period of 10 months, each causing seemingly full clinical and paraclinical remission, yet several episodes of relapse occurred after cessation of antibiotic treatment. The review of the literature showed that only a few cases of infections with enterohepatic helicobacters belonging to the Flexispira rappini taxons have previously been reported. The majority of cases included patients with X-linked agammaglobulinemia and the symptomatology and course of disease were similar to the case described here. Infections with enterohepatic helicobacters, including Helicobacter trogontum, should be considered in patients with X-linked agammaglobulinemia presenting with fever, malaise and skin lesions. Careful cultivation and microbiological investigation are essential to determine the diagnosis and a long treatment period of over 6 months must be expected for successful eradication.
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Affiliation(s)
- Lasse Fjordside
- Department of Infectious Diseases, University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
| | - Caroline Herløv
- Department of Clinical Microbiology, University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
| | - Camilla Heldbjerg Drabe
- Department of Infectious Diseases, University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
| | - Leif Percival Andersen
- Department of Clinical Microbiology, University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
| | - Terese L. Katzenstein
- Department of Infectious Diseases, University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark
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Prevalence, diversity and public health implications of Helicobacter species in pet and stray dogs. One Health 2022; 15:100430. [PMID: 36277106 PMCID: PMC9582540 DOI: 10.1016/j.onehlt.2022.100430] [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: 07/05/2022] [Revised: 08/27/2022] [Accepted: 08/28/2022] [Indexed: 11/23/2022] Open
Abstract
Background It is probable that humans can acquire H. pylori and non—H. pylori Helicobacter infections via domestic animals. The prevalence and risk factors of infections of Helicobacter species in canines of Taipei city were therefore analysed in this study. Materials and methods A total of 95 canine faecal samples were collected from different animal shelters and hospitals in Taipei city. Total DNA was extracted for semi-nested PCR detection of Helicobacter species. The PCR products were sequenced for further comparative database and phylogenetic analyses. Results The overall prevalence of Helicobacter species in canines of Taipei city was 75.79% (72/95). Two gastric, seven enterohepatic and two unclassified Helicobacter species were identified, all of which have been implicated in the aetiology of human diseases. The predominant species detected included H. canis (27.78%), H. pylori (26.39%), H. canicola (18.06%), and H. bilis (13.89%) in decreasing order, while H. canadensis and H. typhlonius were identified for the first time in canines. The genotypes in H. pylori and H. canicola clusters grouped together, with their respective reference strains, showed a close evolutionary distance in the phylogenetic tree, indicating a common ancestry may have existed in these clusters respectively. The residential region of canines, dog living status (pet or stray) and breed (purebred or mixed-breed) are the risk factors associated with Helicobacter infections in the canines examined. Conclusion The high prevalence of Helicobacter infections in canines highlights a potential public health risk of zoonotic transmission among dogs, humans and other animals, and therefore, the need for proper methods in controlling the transmission routes. In addition, the 16S rRNA gene amplification method was found to be useful for bacterial identification and phylogenetic analysis. The prevalence of Helicobacter infection in dogs of Taipei city was found to be 75.79%. Species detected included H. canis, H. pylori, H. canicola, H. bilis and others, including 2 unclassified species. Almost all the species detected are identical with those reported to be found in humans in some other studies, suggesting possible cross-transmission between humans and canines. Residential region, living status (pet or stray) and breed type of canines are risk factors associated with Helicobacter infections in the canines. Phylogenetic analysis indicated an evolutionary pattern in H. pylori and H. canicola clusters, suggesting a common ancestry may have existed in these clusters respectively.
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Public health significance of Helicobacter pullorum, a putative food-associated emerging zoonotic pathogen in Iran. Comp Immunol Microbiol Infect Dis 2022; 87:101849. [PMID: 35772221 DOI: 10.1016/j.cimid.2022.101849] [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: 02/11/2022] [Revised: 06/11/2022] [Accepted: 06/14/2022] [Indexed: 11/21/2022]
Abstract
According to the World Health Organization, diseases which are naturally transmissible from vertebrate animals to human beings or from humans to vertebrates are defined as the zoonotic diseases. Among the most common zoonotic pathogens, Helicobacter pullorum has earned public recognition regarding its public health significance. This Enterohepatic Helicobacter species has been shown to be a very dangerous and life-threatening microorganism, accounting for several clinically important infections in the human population. However, despite the several studies indicating the significance of H.pullorum in both humans and animals, there is a lack of documented information and reliable statistics about this pathogen throughout the world. Thus, in this review, we would provide a novel knowledge about the general characteristics, isolation methods, host ranges and transmission routes, and occurrences of H.pullorum in poultry, chicken meat, and human in Iran. We would also clarify the status of antimicrobial resistance (AMR) profile of the H.pullorum isolates from various samples in this country.
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Aydin F, Saticioglu IB, Ay H, Kayman T, Karakaya E, Abay S. Description of the two novel species of the genus Helicobacter: Helicobacter anatolicus sp. nov., and Helicobacter kayseriensis sp. nov., isolated from feces of urban wild birds. Syst Appl Microbiol 2022; 45:126326. [DOI: 10.1016/j.syapm.2022.126326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 04/22/2022] [Accepted: 04/27/2022] [Indexed: 10/18/2022]
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20
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Osaki T, Lin Y, Sasahira N, Ueno M, Yonezawa H, Hojo F, Okuda M, Matsuyama M, Sasaki T, Kobayashi S, Tezuka S, Tanaka K, Dan N, Kuruma S, Egawa N, Kamiya S, Kikuchi S. Prevalence estimates of Helicobacter species infection in pancreatic and biliary tract cancers. Helicobacter 2022; 27:e12866. [PMID: 35005807 PMCID: PMC9285378 DOI: 10.1111/hel.12866] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 11/09/2021] [Accepted: 12/07/2021] [Indexed: 01/10/2023]
Abstract
BACKGROUND Helicobacter pylori infection is a well-established risk factor for gastric cancer and has been linked to other gastrointestinal diseases, including pancreatic and biliary tract cancers; however, the relevance of enterohepatic non-H. pylori helicobacters to the pathophysiology of these diseases remains unclear. MATERIALS AND METHODS We estimated the prevalence of two enterohepatic non-H. pylori helicobacters (Helicobacter hepaticus and Helicobacter bilis) in the framework of a hospital-based case-control study involving 121 patients with biliary tract cancer, pancreatic cancer, or other gastrointestinal diseases. Bile and blood samples were collected from the patients undergoing endoscopic retrograde cholangiopancreatography. The presence of H. bilis, H. hepaticus, and other Helicobacter spp. was examined using bacterial culture, PCR-based detection, and serological tests. RESULTS Culture of Helicobacter spp. from biliary brush samples was unsuccessful. Approximately 13.0% (15/115) of the bile samples collected from patients with a variety of gastrointestinal cancers, including pancreatic and biliary tract cancers, tested positive for one of the enterohepatic non-H. pylori helicobacter species as determined by PCR. Specifically, H. bilis and H. hepaticus DNA were detected in 11 and 4 bile samples, respectively. Approximately 20%-40% of the patients tested positive for serum non-H. pylori helicobacter IgG antibodies. The seroprevalence of H. bilis and H. hepaticus in the patients without evidence of H. pylori infection appeared to be higher in the pancreatic cancer group than in the control group. CONCLUSION Our findings suggest a role for Helicobacter spp., especially H. bilis and H. hepaticus, in the etiology of pancreatic and biliary tract cancers.
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Affiliation(s)
- Takako Osaki
- Department of Infectious DiseasesKyorin University School of MedicineTokyoJapan
| | - Yingsong Lin
- Department of Public HealthAichi Medical University School of MedicineAichiJapan
| | - Naoki Sasahira
- Department of Hepato‐Biliary‐Pancreatic MedicineCancer Institute Hospital of Japanese Foundation for Cancer ResearchTokyoJapan
| | - Makoto Ueno
- Division of Hepatobiliary and Pancreatic Medical OncologyKanagawa Cancer CenterYokohamaJapan
| | - Hideo Yonezawa
- Department of Infectious DiseasesKyorin University School of MedicineTokyoJapan
| | - Fuhito Hojo
- Graduate School of MedicineInstitute of Laboratory AnimalsKyorin UniversityTokyoJapan
| | - Masumi Okuda
- Department of PediatricsHyogo College of MedicineHyogoJapan
| | - Masato Matsuyama
- Department of Hepato‐Biliary‐Pancreatic MedicineCancer Institute Hospital of Japanese Foundation for Cancer ResearchTokyoJapan
| | - Takashi Sasaki
- Department of Hepato‐Biliary‐Pancreatic MedicineCancer Institute Hospital of Japanese Foundation for Cancer ResearchTokyoJapan
| | - Satoshi Kobayashi
- Division of Hepatobiliary and Pancreatic Medical OncologyKanagawa Cancer CenterYokohamaJapan
| | - Shun Tezuka
- Division of Hepatobiliary and Pancreatic Medical OncologyKanagawa Cancer CenterYokohamaJapan
| | - Kei Tanaka
- Department of Internal MedicineTokyo Metropolitan Ohtsuka HospitalTokyoJapan
| | - Naoaki Dan
- Department of Internal MedicineTokyo Metropolitan Ohtsuka HospitalTokyoJapan
| | - Sawako Kuruma
- Department of Internal MedicineTokyo Metropolitan Komagome HospitalTokyoJapan
| | - Naoto Egawa
- Department of Internal MedicineTokyo Metropolitan Matsuzawa HospitalTokyoJapan
| | - Shigeru Kamiya
- Department of Infectious DiseasesKyorin University School of MedicineTokyoJapan
| | - Shogo Kikuchi
- Department of Public HealthAichi Medical University School of MedicineAichiJapan
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