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Yang W, Zhang CC. Efficacy and safety of Jiuwei Xiaoyang soup vs nizatidine tablets in treatment of duodenal ulcer patients with spleen-stomach dampness-heat syndrome. Shijie Huaren Xiaohua Zazhi 2017; 25:194-198. [DOI: 10.11569/wcjd.v25.i2.194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM To compare the efficacy and safety of Jiuwei Xiaoyang soup and nizatidine tablets in the treatment of duodenal ulcer patients with spleen-stomach dampness-heat syndrome.
METHODS Eighty duodenal ulcer patients with spleen-stomach dampness-heat syndrome treated from January 2015 to May 2016 were randomly divided into either an experimental group to receive Jiuwei Xiaoyang soup (n = 40) or a control group to receive nizatidine tablets (n = 40). The treatment lasted six weeks in both groups. The rates of clinical improvement, gastroscopic improvement, and recurrence were compared between the two groups.
RESULTS The rate of clinical improvement (e.g., dry mouth and body weight) was significantly higher in the experimental group than in the control group (P < 0.05). The rate of ulcer recurrence was significantly lower in the experimental group than the control group (P < 0.05). The rate of gastroscopic improvement did not differ significantly between the two groups (P > 0.05).
CONCLUSION Jiuwei Xiaoyang soup is superior to nizatidine tablets in improving clinical symptoms and reducing ulcer recurrence in duodenal ulcer patients with spleen-stomach dampness-heat syndrome.
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Zhang BB, Li Y, Liu XQ, Wang PJ, Yang B, Bian DL. Association between vacA genotypes and the risk of duodenal ulcer: a meta-analysis. Mol Biol Rep 2014; 41:7241-54. [DOI: 10.1007/s11033-014-3610-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 07/12/2014] [Indexed: 12/20/2022]
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Filipec Kanizaj T, Katicić M, Presecki V, Gasparov S, Colić Cvrlje V, Kolarić B, Mrzljak A. Serum antibodies positivity to 12 Helicobacter pylori virulence antigens in patients with benign or malignant gastroduodenal diseases--cross-sectional study. Croat Med J 2009; 50:124-32. [PMID: 19399945 PMCID: PMC2681059 DOI: 10.3325/cmj.2009.50.124] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate the association of gastric histological and endoscopic findings in patients with Helicobacter pylori (H. pylori), according to presence of seropositivity to 12 bacterial virulence antigens. METHODS This is a cross-sectional single-center study of 360 consecutive outpatients referred in the period of one year to upper gastrointestinal endoscopy because of dyspeptic complaints. Patients sera were tested by Western blot method to determine the presence of serum antibodies to bacterial virulence antigens--p120 (CagA--cytotoxin-associated antigen), p95 (VacA - vacuolating cytotoxin), p67 (FSH--flagellar sheath protein), p66 (UreB--urease enzyme heavy subunit), p57 (HSP homologue--heath shock protein homologue), p54 (flagellin), p33, p30 (OMP--outer membrane protein), p29 (UreA--urease enzyme light subunit), p26, p19, and p17. Upper gastrointestinal endoscopy was performed, endoscopic diagnosis recorded, and 4 mucosal biopsy samples were obtained and assessed according to Updated Sydney protocol. RESULTS The sera of 207 patients were analyzed. Thirty patients had gastric adenocarcinoma, 126 peptic ulcers, and 51 normal finding. p120 (CagA) seropositivity was significantly more often present in patients with higher activity grade in the antrum (P = 0.025), p30 in patients with greater inflammation in the antrum (P = 0.025) and the corpus (P = 0.010), p33 in patients with greater inflammation in the corpus (P = 0.050), and p19 (OMP) in patients with lower intestinal metaplasia grades in the corpus (P = 0.025). Seroreactivity to all other bacterial proteins showed no association with the histological status of the stomach mucosa. Except for the seropositivity to protein p95 (VacA), which was more often present in patients with duodenal ulcer (P = 0.006), there was no difference in seroreactivity to other bacterial proteins and upper gastrointestinal endoscopic findings. CONCLUSIONS p120 (CagA), p33, p30 (OMP), and p19 (OMP) seropositivity was more often present in patients with higher grades of the histological parameters of gastritis and seropositivity to protein p95 (VacA) with endoscopic presence of duodenal ulcer. Histological parameters of gastritis are more associated with bacterial virulence than endoscopic findings.
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Affiliation(s)
- Tajana Filipec Kanizaj
- Tajana Filipec Kanizaj, Department of Internal medicine, University Hospital Merkur, Zajceva 19, 10000 Zagreb, Croatia.
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G M, Tiwari SK, Sharma V, Habeeb MA, Khan AA, Cm H. Association of Helicobacter pylori restriction endonuclease-replacing gene, hrgA with overt gastrointestinal diseases. Arq Gastroenterol 2008; 45:225-9. [PMID: 18852951 DOI: 10.1590/s0004-28032008000300011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2007] [Accepted: 02/01/2008] [Indexed: 11/22/2022]
Abstract
BACKGROUND AND AIM Helicobacter pylori has been proven to be responsible for causing various gastrointestinal disorders including gastric adenocarcinoma. Several genes of pathogen (the genes of the cag-PAI, vacA, iceA, and babA) either in combination or independently have been reported to significantly increase the risk of ulceration/gastric carcinoma, with the cagA gene having the strongest predictive value. Pursuit to identify new genes which could serve as a marker of overt disease progression, lead to the discovery of hrgA gene. METHODS Fifty-six indigenous strains of H. pylori from subjects with various gastric disorder were screened to assess the status of hrgA gene along with the cagA gene using simple polymerase chain reaction using specific oligonucleotide primers. Post-amplification, amplicons were subjected for sequencing to identify any strain specific variations in sequences from the H. pylori isolated from different disease manifestations. Histopathological analysis was done to ascertain any significant change in the histological scores of subjects infected with cagA+/hrgA+ and cagA-/hrg+ strains. RESULTS All the 56 (100%) subjects amplified with the oligonucleotide primers specific to hrgA gene, whereas 81.71% subjects showed the presence of cagA gene. Sequencing of the amplimers showed 99% homology. Histology of the cagA+/hrgA+ and cagA-/hrg+ subjects did not show any significant difference. CONCLUSION hrgA gene of Helicobacter pylori is not a ideal surrogate marker for identifying individuals with higher risk of developing overt gastro-duodenal diseases such as neoplasia of the stomach.
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Affiliation(s)
- Manoj G
- Center for Liver Research and Diagnostics, Deccan College of Medical Sciences and Allied Hospitals, Kanchanbagh, Hyderabad, Andhra Pradesh, India
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Abstract
Helicobacter pylori extracellular proteins are of interest because of possible roles in pathogenesis, host recognition, and vaccine development. We utilized a unique approach by growing two strains (including one nonsequenced strain) in a defined serum-free medium and directly analyzing the proteins present in the culture supernatants by LC-MS/MS. Over 125 proteins were identified in the extracellular proteomes of two H. pylori strains. Forty-five of these proteins were enriched in the extracellular fraction when compared to soluble cell-associated protein samples. Our analysis confirmed and expanded on the previously reported H. pylori extracellular proteome. Extracellular proteins of interest identified here included cag pathogenicity island protein Cag24 (CagD); proteases HP0657 and HP1012; a polysaccharide deacetylase, HP0310, possibly involved in the hydrolysis of acetyl groups from host N-acetylglucosamine residues or from residues on the cell surface; and HP0953, an uncharacterized protein that appears to be restricted to Helicobacter species that colonize the gastric mucosa. In addition, our analysis found eight previously unidentified outer membrane proteins and two lipoproteins that could be important cell surface proteins.
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Affiliation(s)
- Todd G Smith
- Department of Microbiology, University of Georgia, Athens, GA 30602, USA
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Park JW, Song JY, Lee SG, Jun JS, Park JU, Chung MJ, Ju JS, Nizamutdinov D, Chang MW, Youn HS, Kang HL, Baik SC, Lee WK, Cho MJ, Rhee KH. Quantitative analysis of representative proteome components and clustering of Helicobacter pylori clinical strains. Helicobacter 2006; 11:533-43. [PMID: 17083375 DOI: 10.1111/j.1523-5378.2006.00456.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BACKGROUND Several Helicobacter pylori proteins have been reported to be associated with severe symptoms of gastric disease. However, expression levels of most of these disease-associated proteins require further evaluation in order to clarify their relationships with gastric disease patterns. Representative proteome components of 71 clinical isolates of H. pylori were analyzed quantitatively to determine whether the protein expression levels were associated with gastric diseases and to cluster clinical isolates. METHODS After two-dimensional electrophoresis (2-DE) of H. pylori isolates, spot intensities were analyzed using pdquest 2-D Gel Analysis Software. The intensities of 10 representative protein spots, identified by peptide fingerprinting using matrix assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF-MS) or peptide sequencing using quadrupole TOF MS, were subjected to the nonparametric Mann-Whitney test and hierarchical agglomerative cluster analysis. The relationship between clusters and gastric diseases was analyzed by the chi-squared test. RESULTS Although the spot intensities of the 10 representative proteins were highly variable within each gastric disease group, the expression levels of CagA, UreB, GroEL, EF-Tu, EF-P, TagD, and FldA showed some significant differences among the gastric disease patterns. On the basis of the 10 target protein intensities, hierarchical agglomerative cluster analysis generated a dendrogram with clusters indicative of chronic gastritis/gastric cancers and gastric/duodenal ulcers. CONCLUSION These results indicated that quantitative analysis of proteome components is a feasible method for examining disease-associated proteins and clustering clinical strains of H. pylori.
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Affiliation(s)
- Jeong-Won Park
- Department of Microbiology, Gyeongsang National University College of Medicine, Jinju, Gyeong-Nam, Korea
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Xia HHX, Lam SK, Chan AOO, Lin MCM, Kung HF, Ogura K, Berg DE, Wong BCY. Macrophage migration inhibitory factor stimulated by Helicobacter pylori increases proliferation of gastric epithelial cells. World J Gastroenterol 2005; 11:1946-50. [PMID: 15800984 PMCID: PMC4305715 DOI: 10.3748/wjg.v11.i13.1946] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM Helicobacter pylori (H pylori) is associated with increased gastric inflammatory and epithelial expression of macrophage migration inhibitory factor (MIF) and gastric epithelial cell proliferation. This study aimed at determining whether H pylori directly stimulates release of MIF in monocytes, whether the cag pathogenicity island (PAI) is involved for this function, and whether MIF stimulated by H pylori increases gastric epithelial cell proliferation in vitro. METHODS A cytotoxic wild-type H pylori strain (TN2), its three isogenic mutants (TN2Deltacag, TN2DeltacagA and TN2DeltacagE) were co-cultured with cells of a human monocyte cell line, THP-1, for 24 h at different organism/cell ratios. MIF in the supernatants was measured by an ELISA. Cells of a human gastric cancer cell line, MKN45, were then co-cultured with the supernatants, with and without monoclonal anti-MIF antibody for 24 h. The cells were further incubated for 12 h after addition of 3H-thymidine, and the levels of incorporation of 3H-thymidine were measured with a liquid scintillation counter. RESULTS The wild-type strain and the isogenic mutants, TN2DeltacagA and TN2 DeltacagE, increased MIF release at organism/cell ratios of 200/1 and 400/1, but not at the ratios of 50/1 and 100/1. However, the mutant TN2delta cag did not increase the release of MIF at any of the four ratios. 3H-thymidine readings for MKN-45 cells were significantly increased with supernatants derived from the wild-type strain and the mutants TN2DeltacagA and TN2DeltacagE, but not from the mutant TN2Deltacag. Moreover, in the presence of monoclonal anti-MIF antibody, the stimulatory effects of the wild-type strain on cell proliferation disappeared. CONCLUSION H pylori stimulates MIF release in monocytes, likely through its cag PAI, but not related to cagA or cagE. H pylori-stimulated monocyte culture supernatant increases gastric cell proliferation, which is blocked by anti-MIF antibody, suggesting that MIF plays an important role in H pylori-induced gastric epithelial cell proliferation.
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Affiliation(s)
- Harry Hua-Xiang Xia
- Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong, China
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Abstract
BACKGROUND AND AIMS There is a geographic variation in Helicobacter pylori (HP) genotypes and virulence factors. Cytotoxin associated genes A (cagA) and E (cagE), and certain vacuolating cytotoxin (vacA) genotypes are associated with peptic ulcer disease (PUD). There is also a different prevalence of PUD among different ethnic groups in Malaysia. The present study compared the distribution of vacA alleles and cagA and cagE status in three ethnic groups residing in Kuala Lumpur, Malaysia, and their association with clinical outcome. METHODS All patients with cultured positive HP were recruited prospectively. DNA was extracted and polymerase chain reaction was carried out to determine the cagA and cagE status and vacA alleles. RESULTS The results of 127 patients (72 men and 55 women) were included. The mean age was 55.53 +/- 12.52 years. The ethnic distribution was 59 Chinese, 38 Indian and 30 Malay patients. The predominant genotype was s1a among the Malay (76.6%) and Indian patients (71.0%), and s1c among the Chinese patients (66.1%). The vacA middle region sequence m1 was detected in 66.7% of Malay, 54.2% of Chinese and 76.3% of Indian patients. Of the Malay, Chinese and Indian patients, 76.6%, 86.4% and 86.8%, respectively, were cagA positive, and 70.0%, 39.0% and 81.6%, respectively, were cagE positve. HP cagA, cagE and vacA were not associated with PUD. CONCLUSION There is a distinctive difference in the HP strains among the three ethnic groups in Malaysia. There was no association between cagA, cagE or vacA genotypes and clinical outcome in the patients. None of these markers are helpful in predicting the clinical presentation of a HP infection.
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Affiliation(s)
- Huck Joo Tan
- Department of Gastroenterology, Sunway Medical Center, Selangor, Malaysia.
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Abstract
BACKGROUND cag pathogenicity island is reported to be a major virulence factor of Helicobacter pylori. The aim of this study was to investigate the status of cag pathogenicity island genes and gastric histology in Korean children with H. pylori gastritis. METHODS Helicobacter pylori DNA was extracted from antral biopsy specimens from 25 children with H. pylori gastritis. Specific polymerase chain reaction assays were used for four genes of cag pathogenicity island. The features of gastritis were scored in accordance with the updated Sydney System. RESULTS cagA was present in 23 (92%) of 25 children, and cagE in 24 (96%). Twenty-two (88%) children were cagT positive and 19 (76%) virD4 positive. All of the selected genes of the cag pathogenicity island were present in 17 (68%) children and completely deleted in one child. There were no differences in neutrophil activity and chronic inflammation between children infected with intact cag pathogenicity island strains and those with partially or totally deleted-cag pathogenicity island strains. CONCLUSION cag pathogenicity island is not a uniform, conserved entity in Korea. Completeness of cag pathogenicity island may not be the major factor to determine the severity of H. pylori gastritis in children.
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Affiliation(s)
- Jae Sung Ko
- Department of Pediatrics, Seoul National University College of Medicine, Chongno-gu, Seoul, Korea
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Suda Y, Kim YM, Ogawa T, Yasui N, Hasegawa Y, Kashihara W, Shimoyama T, Aoyama K, Nagata K, Tamura T, Kusumoto S. Chemical structure and biological activity of a lipid A component from Helicobacter pylori strain 206. ACTA ACUST UNITED AC 2001. [PMID: 11521089 DOI: 10.1177/09680519010070020301] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The chemical structure of a lipid A, which was obtained as a minor component from lipopolysaccharide of Helicobacter pylori strain 206-1, was determined to be a glucosamine beta-(1 -6) disaccharide 1-(2-aminoethyl)phosphate acylated by (R)-3-hydroxyoctadecanoic acid, (R)-3- hydroxyhexadecanoic acid, and (R)-3-(octadecanoyloxy)octadecanoic acid at the 2-, 3- and 2'-positions, respectively. Compared with the other major lipid A from the same strain, which was previously reported [Suda Y, Ogawa T, Kashihara W et al. Chemical structure of lipid A from Helicobacter pylori strain 206-1 lipopolysaccharide. J Biochem 1997; 121: 1129--1133], the structure was very similar with one exception. An (R)-3-hydroxyhexadecanoic acid was present at the 3-position of the novel lipid A component. The structure is apparently identical to one of the proposals by Moran et al. [Moran AP, Lindner B, Walsh EJ. Structural characterization of the lipid A component of Helicobacter pylori rough- and smooth-form lipopolysaccharides. J Bacteriol 1997; 179: 6453--6463], who concluded the same structure as the so-called major lipid A from the H. pylori strain NCTC 11637 but without isolating a homogeneous component. The endotoxic properties and pro-inflammatory cytokine-inducing activities of this novel tetra-acyl type lipid A were lower than those of previously reported major tri-acyl type lipid A.
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Affiliation(s)
- Y Suda
- Department of Chemistry, Graduate School of Science, Osaka University, Osaka, Japan.
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Eaton KA, Kersulyte D, Mefford M, Danon SJ, Krakowka S, Berg DE. Role of Helicobacter pylori cag region genes in colonization and gastritis in two animal models. Infect Immun 2001; 69:2902-8. [PMID: 11292705 PMCID: PMC98241 DOI: 10.1128/iai.69.5.2902-2908.2001] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The Helicobacter pylori chromosomal region known as the cytotoxin-gene associated pathogenicity island (cag PAI) is associated with severe disease and encodes proteins that are believed to induce interleukin (IL-8) secretion by cultured epithelial cells. The objective of this study was to evaluate the relationship between the cag PAI, induction of IL-8, and induction of neutrophilic gastric inflammation. Germ-free neonatal piglets and conventional C57BL/6 mice were given wild-type or cag deficient mutant derivatives of H. pylori strain 26695 or SS1. Bacterial colonization was determined by plate count, gastritis and neutrophilic inflammation were quantified, and IL-8 induction in AGS cells was determined by enzyme-linked immunosorbent assay. Deletion of the entire cag region or interruption of the virB10 or virB11 homolog had no effect on bacterial colonization, gastritis, or neutrophilic inflammation. In contrast, these mutations had variable effects on IL-8 induction, depending on the H. pylori strain. In the piglet-adapated strain 26695, which induced IL-8 secretion by AGS cells, deletion of the cag PAI decreased induction. In the mouse-adapted strain SS1, which did not induce IL-8 secretion, deletion of the cagII region or interruption of any of three cag region genes increased IL-8 induction. These results indicate that in mice and piglets (i) neither the cag PAI nor the ability to induce IL-8 in vitro is essential for colonization or neutrophilic inflammation and (ii) there is no direct relationship between the presence of the cag PAI, IL-8 induction, and neutrophilic gastritis.
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Affiliation(s)
- K A Eaton
- Department of Veterinary Biosciences, Ohio State University, Columbus, Ohio 43210, USA.
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