| [helicobacter pylori]. | | 1991 | 1726914 |
| [ultrastructural study of the antral mucosa to determine the presence of helicobacter pylori and its association with chronic active gastritis]. | we present the results of ultrastructural studies of gastric mucosa obtained through upper digestive endoscopy of eight patients with suspicious symptoms of non ulcer dyspepsia or peptic ulcer. two were male and six female with a median age of 54 years. the urease test to determine the presence of hp and hematoxylin-eosin and warthin-starry staining techniques were practiced with the purpose of a better detection of bacteria and gastritis. we did not find any correlation between the endoscopic r ... | 1991 | 1726915 |
| histological classification of chronic gastritis: an iconoclastic view. | | 1992 | 1727770 |
| symptoms and risk factors of helicobacter pylori infection in a cohort of epidemiologists. | to identify symptoms and risk factors associated with helicobacter pylori infection, a cohort of 341 epidemiologists was studied. all subjects had one banked serum (collected between 1969 and 1987) and one recent serum sample (collected in 1988) evaluated for h. pylori immunoglobulin g by enzyme-linked immunosorbent assay; subjects provided information on gastrointestinal symptoms and risk factors for gastritis and peptic ulcer disease. prevalence of infection decreased from the early 1970s to t ... | 1992 | 1727779 |
| helicobacter pylori and gastric lymphonodular hyperplasia in children. | the association of gastric lymphonodular hyperplasia and helicobacter pylori infection has been reported only in children. lymphonodular hyperplasia of the stomach is a well known radiographic and endoscopic entity. over the past three decades, it has been associated with many conditions, ranging from a normal variant to a premalignant lesion. we have recently encountered five children with gastric lymphonodular hyperplasia, all of whom had h. pylori infection of the antrum. the literature regar ... | 1992 | 1728111 |
| cytology: a simple, rapid, sensitive method in the diagnosis of helicobacter pylori. | cytology and the rapid urease test on gastric biopsies may diagnose helicobacter pylori (h. pylori) infection within an hour. we evaluated the sensitivity and reproducibility of touch cytology (imprints from biopsies). in 19 patients with duodenal ulcer, biopsies were obtained from the antrum, fundus, and bulb. h. pylori was diagnosed in 42 sites on smears: 28 by culture and 23 by histology. h. pylori was present in the antrum and fundus in 16 and in the bulb in 11. assessment of paired antral b ... | 1992 | 1728119 |
| helicobacter pylori and duodenal ulcer recurrence. | preliminary evidence suggests that eradication of helicobacter pylori (h. pylori) may lead to prolonged remission of duodenal ulcer (du). the aim of this study was to assess the long-term effect of eradication of h. pylori on the natural history of du. fifty-one patients with endoscopically proven duodenal ulcers, who were found to have h. pylori infection on histology and culture, and who were successfully eradicated of h. pylori with combination treatment of colloidal bismuth subcitrate and an ... | 1992 | 1728120 |
| h. pylori, the most common bacterial infection in africa: a random serological study. | this study was carried out to determine the prevalence of antibodies to helicobacter pylori in northern nigeria, a region with a low incidence of peptic ulceration. in a random, serological survey of 268 subjects, 228 (85%) of the population studied had igg antibodies to h. pylori. fifty-eight of these subjects had experienced dyspepsia in the preceding 6 months. the majority of the population (82%) is infected between the ages of 5 and 10. despite the high prevalence of antibodies to h. pylori, ... | 1992 | 1728121 |
| treponema pallidum and helicobacter pylori recovered in a case of chronic active gastritis. | a 49-year-old man complaining of epigastric pain underwent endoscopy, during which thickened stomach folds below the fundus were observed. microscopic examination of gastric tissue biopsy specimens revealed chronic active gastritis. dieterle stain revealed overwhelming numbers of "corkscrew-like" spirochetes. these were proved to be consistent with treponema pallidum. a comprehensive study of the tissue revealed the added presence of helicobacter pylori. this appears to be the first case report ... | 1992 | 1728852 |
| topographic mapping of helicobacter pylori colonization in long-term-infected pigs. | four barrier-born pigs were inoculated with helicobacter pylori during gastroscopy. infection in all pigs was established after 3 weeks, and the animals were kept isolated from other pigs in ordinary experimental sites. the pigs were sacrificed and examined 3, 5, 6, and 6.5 months postinoculation. a detailed urease mapping of the pig stomachs showed a patchy distribution of h. pylori. the bacteria colonized in all pigs, with a concentration of h. pylori-positive areas in the antrum and fundus. f ... | 1992 | 1730499 |
| factors influencing the eradication of helicobacter pylori with triple therapy. | helicobacter pylori infection has been associated with gastritis, duodenal ulcer, gastric ulcer, and the epidemic form of gastric carcinoma. eradication of h. pylori infection has proven to be difficult. recently, combinations of antimicrobial drugs have been shown to eradicate greater than 50% of infections; however, the results have proven variable, and the factors influencing effectiveness of therapy are unclear. in the present study, the effectiveness of a triple therapy for eradication of h ... | 1992 | 1732120 |
| hypotheses on the pathogenesis and natural history of helicobacter pylori-induced inflammation. | although helicobacter pylori is now recognized as playing an etiologic role in chronic gastritis and peptic ulcer disease, information on the pathogenesis and natural history of infection is limited. a model is proposed in which luminal h. pylori secrete substances that mediate inflammation that is beneficial to the organism but ultimately deleterious for the host; in addition to tissue damage, inflammation also affects gastric secretory function. in this model, the host may attempt to suppress ... | 1992 | 1732141 |
| helicobacter pylori gastric atrophy and pernicious anemia. | | 1992 | 1732153 |
| surface proteins from helicobacter pylori exhibit chemotactic activity for human leukocytes and are present in gastric mucosa. | the mechanism by which helicobacter pylori, a noninvasive bacterium, initiates chronic antral gastritis in humans is unknown. we now show that h. pylori releases products with chemotactic activity for monocytes and neutrophils. this chemotactic activity was inhibited by antisera to either h. pylori whole bacteria or h. pylori-derived urease. moreover, surface proteins extracted from h. pylori and purified h. pylori urease (a major component of the surface proteins) exhibited dose-dependent, anti ... | 1992 | 1732414 |
| evaluation of a commercially available second-generation immunoglobulin g enzyme immunoassay for detection of helicobacter pylori infection. | we evaluated a commercially available second-generation anti-h. pylori immunoglobulin g enzyme immunoassay (eia) (cobas core anti-helicobacter pylori eia; roche s. a., basel, switzerland) for serodiagnosis of h. pylori infection. the results of the assay were assessed in relation to the results of bacterial culture, urease testing, and histological giemsa stain of gastric biopsy specimens from 1,134 patients with a variety of symptoms relating to the upper gastrointestinal tract. h. pylori was d ... | 1992 | 1734050 |
| 15nh4+ excretion test: a new method for detection of helicobacter pylori infection. | a noninvasive test for the detection of helicobacter pylori infection that uses [15n]urea as a tracer has been established. the principle the test is based on is the strong urease activity of h. pylori. after oral ingestion, [15n]urea is broken down into ammonia and carbon dioxide by h. pylori urease in the stomach. the ammonia is absorbed into the blood and excreted in the urine. the amount of [15n]urea, reflecting the magnitude of h. pylori infection, is evaluated by measuring the abundance an ... | 1992 | 1734051 |
| sensitive detection of helicobacter pylori by using polymerase chain reaction. | a polymerase chain reaction (pcr) for the specific detection of helicobacter pylori was developed with a single primer pair derived from the nucleotide sequence of the urease a gene of h. pylori. we achieved specific amplification of a 411-bp dna fragment in h. pylori. after 35 cycles of amplification, the product could be detected by agarose gel electrophoresis and contained conserved single hinfi and alui restriction sites. this fragment was amplified in all 50 strains of h. pylori tested, but ... | 1992 | 1734052 |
| diagnosis of helicobacter pylori infection in adult and pediatric patients by using pyloriset, a rapid latex agglutination test. | pyloriset (orion diagnostica, espoo, finland) is a rapid antibody test using latex particles coated with acid-extracted antigen of helicobacter pylori. we evaluated its ability to predict infection in 100 adult patients and 50 pediatric patients referred for gastric endoscopy. sixty of 65 h. pylori-infected adults were correctly identified by the test. there were 12 false-positive and 5 false-negative reactions seen. pyloriset had a sensitivity of 92% and a specificity of 66%. the positive predi ... | 1992 | 1734072 |
| helicobacter pylori and luminal gastric ph. relationships in nonulcer dyspepsia. | the relationships between gastric ph and helicobacter pylori infection were studied in 37 consecutive subjects affected with nonulcer dyspepsia. each underwent esophagogastroduodenoscopy with multiple gastric biopsies for both h. pylori and histologic assessment, and 24-hr antral ph monitoring. h. pylori was harbored by 59.5% of the subjects with whole gastric spread of infection in all but one patient. histologic gastritis was shown in 70.3% of the subjects. h. pylori was strongly associated wi ... | 1992 | 1735361 |
| compositional analysis of helicobacter pylori rough-form lipopolysaccharides. | sodium dodecyl sulfate-polyacrylamide gel electrophoresis was used to analyze the macromolecular heterogeneity of lipopolysaccharides (lps) from seven fresh clinical isolates and three culture collection strains of the human pathogen helicobacter pylori. all the clinical isolates produced smooth-form lps with o side chains of relatively homogeneous chain length, whereas the culture collection strains yielded rough-form lps. a better yield of the latter lps was obtained when combined protease pre ... | 1992 | 1735724 |
| effect of helicobacter pylori on serum pepsinogen i and plasma gastrin in duodenal ulcer patients. | duodenal ulcer patients have increased serum pepsinogen i (pgi) concentrations and an increased prevalence of helicobacter pylori infection. we have examined the effect of eradicating the infection on pgi. in 12 duodenal ulcer patients in whom h. pylori was successfully eradicated, the median basal pgi was 90 ng/ml (range, 37-252) before treatment and fell to 74 ng/ml (28-197) 1 month after treatment (p less than 0.01). in 12 patients in whom therapy failed to eradicate the infection, the pgi wa ... | 1992 | 1736337 |
| helicobacter muridarum sp. nov., a microaerophilic helical bacterium with a novel ultrastructure isolated from the intestinal mucosa of rodents. | helical organisms with novel ultrastructural characteristics were isolated from the intestinal mucosa of rats and mice. these bacteria were characterized by the presence of 9 to 11 periplasmic fibers which appeared as concentric helical ridges on the surface of each cell. the cells were motile with a rapid corkscrewlike motion and had bipolar tufts of 10 to 14 sheathed flagella. the bacteria were microaerophilic, nutritionally fastidious, and physiologically similar to helicobacter species and w ... | 1992 | 1736969 |
| intestinal metaplasia and helicobacter pylori: an endoscopic bioptic study of the gastric antrum. | to study the relationship between intestinal metaplasia and helicobacter pylori infection, 2274 gastroscopic antral biopsies taken from 533 patients were examined. overall, intestinal metaplasia was found in 135 patients (25.3%) and h pylori in 289 patients (54.2%). the prevalence of intestinal metaplasia and h pylori was age related, being more common in patients greater than or equal to 50 years compared with patients less than 50 years (intestinal metaplasia, p less than 0.001 and h pylori, p ... | 1992 | 1740271 |
| association of helicobacter pylori with hla-dr antigen expression in gastritis. | to assess the association between helicobacter pylori-associated gastritis and hla-dr antigen (class ii antigen) expression. | 1992 | 1740510 |
| [helicobacter pylori allergy]. | a case of a 44 year old woman with antrum gastritis and h. pylori infection was reported. after unsuccessful treatment of the disorder with bismuth and tinidazole, an auto-vaccine was prepared from the bacterium in order to eliminate the infection. after the first injection of the vaccine a generalised urticaria was observed. in the development of the skin eruptions a type i, and a type iv allergic reaction could be demonstrated using the h. pylori specific rast-test and leukocyte migration inhi ... | 1992 | 1741153 |
| on the helicobacter species isolated from the pig-tailed macaque. | | 1991 | 1742203 |
| [morpho-functional characteristics of reflux gastritis in patients after cholecystectomy and without cholecystectomy]. | the aim of this study was to evaluate some biochemical and histopathological aspects in a group of patients with a view to identifying any differences depending on whether the pathology was associated with previous cholecystectomy or idiopathic. the study involved 23 patients (8 post-cholecystectomy cases and 15 ulcer-free dyspeptic patients) with the diagnosis of duodenogastric reflux gastritis confirmed by endoscopic histopathological evaluation. the following parameters were considered: 1) ph ... | 1991 | 1742396 |
| gastric antral erosions and helicobacter pylori infection in cirrhotic patients: a pilot controlled study of oral bismuth vs ranitidine therapy. | a controlled study was performed comparing bismuth and ranitidine oral therapy in the treatment of chronic antral erosions and chronic active gastritis and in clearing helicobacter pylori in cirrhotic patients. forty four patients took part in the randomized study. h pylori was present in more than 50% of the patients in the study. there was a close association between the presence of h pylori and inflammatory activity of gastritis at an antral level (p less than 0.001). cbs was significantly be ... | 1991 | 1742507 |
| effect of omeprazole on h. pylori after two weeks of treatment. | the "clearing" effect of omeprazole 20 mg/daily on helicobacter pylori (hp) was studied in 32 hp positive patients with duodenal ulcer (du). endoscopy and antral biopsies were made before and after two weeks of treatment with omeprazole. hlo test and histology after giemsa stain were used for the detection of hp. fourteen of 28 (50%) initially hlo positive and 12 of 30 (40%) initially histological hp positive patients became hp negative. nine of 23 (39%) patients, initially hp positive by both m ... | 1991 | 1742527 |
| [development of genetic and molecular approaches for the diagnosis and study of the pathogenicity of helicobacter pylori, agent of gastric inflammatory diseases]. | helicobacter pylori (h. pylori) is a small gram-negative bacillus, recently discovered, found in the stomach of patients with active chronic gastritis and duodenal ulcers. production of a potent urease has been described as a trait common to all h. pylori so far isolated. to clarify the role of urease in the pathogenic process, as well as to engineer genetic tools useful for the diagnosis of h. pylori, we cloned the genes responsible for urease activity. a genomic library was constructed in esch ... | 1991 | 1742619 |
| a critical look at the sydney classification of gastritis. | | 1991 | 1743133 |
| what does the absence of helicobacter pylori from the antrum imply? | helicobacter pylori is absent in the antrum of approximately 5, 25, and 35% of patients with duodenal ulcer, gastric ulcer, and non-ulcer dyspepsia respectively and in the majority of asymptomatic healthy subjects from the west. the absence of h. pylori from the antrum could result from failure of exposure to (group a) or colonization by (group b) or temporary (group c) or permanent (group d) clearance of h. pylori, after initial colonization. marked differences in the incidence of absence of h. ... | 1991 | 1744380 |
| in vitro endoscopic polaroid photography for clo test of helicobacter pylori. | | 1991 | 1744411 |
| leakiness of gastric superficial and foveolar cells. a quantitative electron microscopic study using tannic acid. | two adjacent antral biopsies were taken endoscopically from 41 patients attending a clinic for the investigation of upper gastrointestinal tract symptoms. one was processed for histopathological grading and assessment of the helicobacter pylori by light microscopy. the other was fixed in tannic acid, which demonstrates cell leakiness, and processed for electron microscopy. on each grid, the light (electron lucent) and dark (electron dense-leaky) gastric superficial and foveolar cells away from m ... | 1991 | 1744797 |
| evaluation of various laboratory techniques to diagnose helicobacter pylori in patients with upper gastro-intestinal tract symptoms. | helicobacter (campylobacter) pylori is strongly associated with type b gastritis. the detection of h. pylori, which entails histological examination and culture of gastric biopsy specimens, takes several days. there has been much interest in developing more rapid tests, including non-invasive ones. using histology and/or culture as the 'gold standard', several methods to detect h. pylori were compared and evaluated. the organism was detected in 84 of 100 consecutive patients attending the gastro ... | 1991 | 1745946 |
| [antibiotic therapy in maternal-fetal infections]. | the selection of first-line antimicrobial therapy in neonates with maternofetal infection is based on probability data from epidemiologic studies of bacterial infections. because of the high prevalence of ampicillin-resistant e. coli strains and of the lack of susceptibility of listeria and group d streptococci to cephalosporins, combined use of two complementary drugs, such as amoxicillin and cefotaxime with an aminoglycoside, is recommended. each dose should be increased twofold in patients wi ... | 1991 | 1746851 |
| [helicobacter pylori gastritis: a new infectious disease. reflections from personal experience]. | to determine the relationship of microscopic chronic antral gastritis to helicobacter pylori, 69 consecutive patients were studied. in a prospective longitudinal study, at least 2 successive gastroscopies with antral biopsies were performed (177 investigations on the whole). sixty six of the 69 patients were treated with various therapeutic regimens i.e. antiulcer drugs and/or antibiotics. the type and intensity of inflammation (as based on whole inflammatory infiltrate density, polymorphonuclea ... | 1991 | 1746875 |
| long-term follow up of patients with gastritis associated with helicobacter pylori infection. | the aim of this study was to evaluate the long-term prognosis for patients suffering from gastritis associated with helicobacter pylori infection, and in particular the proportion of cases progressing to peptic ulcer. the study was carried out in one urban general practice. one hundred and three patients who had presented with dyspepsia over the 1973-80 period and who were found to have a macroscopically normal endoscopy were reassessed between seven and 14 years later. gastric antral biopsies h ... | 1991 | 1747267 |
| omeprazole vs. ranitidine in short-term treatment of helicobacter pylori positive duodenal ulcer patients. | forty-three patients with active duodenal ulcer and helicobacter pylori positivity in gastric antrum were randomly assigned to either omeprazole treatment (20 mg once a day) or ranitidine treatment (300 mg once a day) for 28 days. re-evaluation of the patients (clinical and endoscopic examination and assessments for h pylori detection) was repeated after 2 weeks and at the end of the treatment. healing rates in the omeprazole group were 40% after 2 weeks and 90% after 4 weeks, in the ranitidine ... | 1991 | 1747501 |
| gastrospirillum hominis associated chronic active gastritis: the first report from italy. | recently a spiral bacterium different from helicobacter pylori (hp) was observed in the human stomach and the name of gastrospirillum hominis (gh) was proposed for this organism. gh presence is reported to be not associated to hp but related to chronic active gastritis. we describe the case of a 31 year old male suffering from upper abdominal symptoms, who underwent oesophagogastroduodenoscopy, which revealed a picture of duodenal hyperemia. gastric body showed a normal mucosa and absence of hp, ... | 1991 | 1747510 |
| eradicating helicobacter pylori and symptoms of non-ulcer dyspepsia. | to examine the effect of eradication of helicobacter pylori on symptoms of non-ulcer dyspepsia. | 1991 | 1747644 |
| effect of partial gastrectomy on serum anti-helicobacter pylori immunoglobulins in peptic ulcer patients. | since biliary enterogastric reflux is suggested to eradicate gastric infection with helicobacter pylori (hp), we have investigated in a prospective randomized study the effect of partial gastrectomy with either billroth ii or roux-en-y anastomosis on infection with hp as assessed by the titers of igg and iga antibodies against hp in serum. these antibodies were measured by elisa in serum of 22 patients before and at 10 days and 6, 15, and 24 months after either billroth ii (n = 11) or roux-en-y ... | 1991 | 1748037 |
| helicobacter pylori affects the quality of experimental gastric ulcer healing in a new animal model. | helicobacter pylori has been implicated in the genesis of human gastritis, dyspepsia, and peptic ulcers. however, its influence in the quality of experimental gastric ulcer healing has not been previously investigated. standardized gastric fundic ulcers were produced in 50 male sprague-dawley rats (150-200 g) by a 4 mm in diameter focal, serosal application of 100% acetic acid. thirty rats were administered 2 ml h. pylori suspension (urease producing, atcc 43504) in normal saline (10(8) cfu/ml) ... | 1991 | 1748215 |
| peptic ulcer--newer concepts. | | 1991 | 1748805 |
| pattern of upper gastrointestinal disease in the eastern province of saudi arabia. endoscopic evaluation of 2,982 patients. | the records of 2,982 patients who were subjected to upper gastrointestinal (ugi) endoscopy were retrospectively analyzed. all patients were seen at king fahd hospital of the university, al-khobar during the period 1982-1986. all were adult patients with a mean age of 46 years, of whom two thousand nine (67.4%) were males. the commonest endoscopic diagnosis was chronic gastritis (21.4%) followed by duodenal ulcer (17%) and chronic oesophagitis (11.7%). of 1,256 biopsied patients a 'histologically ... | 1991 | 1750116 |
| immunological response to helicobacter pylori among nigerians. | among 420 nigerians examined, 39% had antibodies to helicobacter pylori. the prevalence was significantly higher in males (55%) than in females (29%). the prevalence tended to rise with age in both sexes and was significantly higher in the 30-34 years age group. socio-economic class and rural dwellage did not affect the prevalence. the study may indicate that h. pylori is endemic in nigeria. it also shows that the detection of antibodies to h. pylori may be a rapid and cheap method for diagnosin ... | 1991 | 1750125 |
| helicobacter pylori and the etiology of duodenal ulcer: necessary but not sufficient. | | 1991 | 1750423 |
| is helicobacter pylori a cause of duodenal ulcer? a methodologic critique of current evidence. | helicobacter pylori (hp) in the gastric antrum has been strongly associated with both duodenal ulcer (du) and chronic active gastritis (cag). the relationship between hp and du has been interpreted as causal by many observers. an alternate hypothesis is that hp coincidently colonizes cag, which is independently associated with du by some yet-unknown mechanism. | 1991 | 1750424 |
| prevalence of helicobacter pylori in military barracks. | | 1991 | 1751818 |
| in vitro inhibition of helicobacter pylori urease: biochemical and ultrastructural analysis. | inhibition of h. pylori urease was studied by means of electron-microscopy and electrophoretic methods using different urease inhibitors, such as acetohydroxamic-acid (aha), l-ascorbic acid (asa), copper ions, a combination of l-ascorbic acid with copper ions and uv light. aha in two different concentrations and asa at a concentration of 0.1 mg ml-1 showed incomplete inhibition of h. pylori urease activity in our electrophoretic experiments. only membrane-bound activity was inhibited with aha bu ... | 1991 | 1752295 |
| differentiation of strains of helicobacter pylori by numerical analysis of 1-d sds-page protein patterns: evidence for post-treatment recrudescence. | twenty-three pre- and post-treatment isolates of helicobacter pylori from the antral mucosa of eight patients with dyspepsia and gastritis were compared using 1-d sds page of proteins. the protein patterns were highly reproducible and were used as the basis for two numerical analyses. the first, based on the total protein patterns, showed that a number of the strains did not cluster with their respective patient set. this was thought to be due to differences in both mobility and intensity of pro ... | 1991 | 1752309 |
| a solid-phase enzyme-linked immunospot (elispot) assay for detection of helicobacter pylori antibody-producing cells in gastric mucosa. | | 1991 | 1752401 |
| is helicobacter pylori associated hypergastrinaemia due to the bacterium's urease activity or the antral gastritis? | eradication of helicobacter pylori is associated with a fall in serum gastrin but the way in which the infection raises the serum gastrin concentration is not clear. it may be related to the ammonia produced by the bacterium's urease stimulating gastrin release by the antral g cells. alternatively, the antral gastritis induced by the infection may modify the regulation of gastrin release. we have examined serum gastrin in 10 patients before and 24 hours after starting triple anti-h pylori treatm ... | 1991 | 1752456 |
| long term serological surveillance after treatment of helicobacter pylori infection. | fifteen patients with type b gastritis caused by helicobacter pylori infection were treated with 'triple' therapy consisting of colloidal bismuth subcitrate, amoxycillin, and metronidazole. all were followed up as outpatients every three months for at least one year. after 'triple' therapy a significant (p less than 0.01) and persistent reduction in iga and igg antibody levels against h pylori was detected. in three patients recurrent active infection with h pylori at nine and 12 months was dete ... | 1991 | 1752457 |
| acute helicobacter pylori infection: clinical features, local and systemic immune response, gastric mucosal histology, and gastric juice ascorbic acid concentrations. | the symptomatology of a case of acute infection with helicobacter pylori is described, together with the accompanying changes in gastric mucosal histology, local and systemic humoral immune response, and gastric ascorbic acid concentration. the patient was an endoscopist, previously negative for the carbon-14 urea breath test, who had a week of epigastric pain and then became asymptomatic. h pylori was detected by culture of antral biopsy specimens and was still present after 74 days. five days ... | 1991 | 1752479 |
| helicobacter pylori infection in healthy people. | | 1991 | 1752483 |
| histopathological study of porcine gastric mucosa with and without a spiral bacterium ("gastrospirillum suis"). | tightly spiralled bacteria ("gastrospirillum suis") were seen in the pyloric mucosa of the stomach of 13 (10.8%) of 120 pigs that appeared clinically healthy at slaughter and in the fundic mucosa of three (5.0%) out of 60 pigs. the spiral organism could not be cultured from any pig. chronic gastritis was observed in the pyloric mucosa of 53 (44.2%) of 120 pigs and in the fundic mucosa of 7 (11.7%) of 60 pigs. the 13 pigs with spiral bacteria in the pyloric region comprised one animal (7.7%) with ... | 1991 | 1753392 |
| [results of the treatment of pyloric helicobacteriosis in children with gastroduodenal pathology]. | | 1991 | 1754350 |
| [immunomorphological criteria of the effectiveness of treatment of pyloric campylobacteriosis in children]. | | 1991 | 1754351 |
| helicobacter pylori infection and non-ulcer dyspepsia: the effect of treatment with colloidal bismuth subcitrate. | a study was undertaken to determine the role of helicobacter pylori in non-ulcer dyspepsia (nud) and to determine the efficacy of colloidal bismuth subcitrate (cbs) in the treatment of nud. seventy-one patients were randomly allocated (double blind) to cbs or placebo, two tablets twice daily for 4 weeks. the severity of dyspepsia was scored and endoscopies performed before and after treatment, and antral biopsy specimens were taken for bacteriologic and histologic examination. forty patients had ... | 1991 | 1754846 |
| adhesion of helicobacter pylori to human gastric mucosal biopsy specimens cultivated in vitro. | the therapeutic advances in helicobacter pylori infection is hampered by the lack of suitable animal model systems. we have previously reported on successful adherence of h. pylori to pig gastric mucosa cultured in vitro. the aim of this study was to verify the technique in human biopsy specimens cultured in vitro. mucosal samples were taken from h. pylori-negative and h. pylori-positive patients undergoing gastric surgery. the non-infected tissue was infected with h. pylori in vitro, and the in ... | 1991 | 1754854 |
| dental plaque: a permanent reservoir of helicobacter pylori? | the aim of the study was to observe the relationship between the two reservoirs of helicobacter pylori--that is, dental plaque and the stomach. with the campylobacter-like organism (clo) test, h. pylori was detected in dental plaque and in gastric antral and body mucosa in 98%, 67% and 70%, respectively, of 43 consecutive patients with dyspepsia. the rapidity of the clo test indicates that the density of h. pylori is heaviest in dental plaque, less in the antrum, and least in the body mucosa of ... | 1991 | 1754858 |
| [bismuth revisited in helicobacter pylori gastro-duodenal infection]. | the various hypothesis for the explantation of reversible bismuth encephalopathy are reviewed and discussed. today, this side effect appears to be devoid of mystery, due to uncontrolled and inhibited ingestion of bismuth salts which increased the emergence of genetic and physiopathologic risk factors and brought about the cases of neurotoxicity. bismuth therapy has shown major efficacy in the treatment of gastroduodenal ulcers. colloidal bismuth subcitrate is as effective as the h2-receptor anta ... | 1991 | 1754987 |
| non-ulcer dyspepsia in nigeria: a case-control study. | non-ulcer dyspepsia is common in africa, yet there are few data on its possible cause. in this study 40 patients with strictly defined non-ulcer dyspepsia were matched with 40 asymptomatic volunteers. both groups were questioned concerning their intake of alcohol, cola nut, non-steroidal anti-inflammatory drugs, and smoking. they then underwent upper gastrointestinal endoscopy with mucosal biopsy of the gastric mucosa: these biopsies were examined for gastritis and helicobacter pylori. ingestion ... | 1991 | 1755074 |
| capillary gas chromatography of cellular carbohydrates as a means for the differentiation of fastidious, slow-growing or anaerobic gram-negative bacteria--a review. | the phenotypic differentiation of microaerophilic or anaerobic gram-negative bacteria of human origin is traditionally based on the analysis of metabolic characteristics. due to outstanding growth requirements of many kinds of parasitic bacteria, e.g. of the facultatively and strictly anaerobic members of the human periodontal flora, conventional biochemical tests are time-consuming and sometimes lead to doubtful results. commercial diagnostic test kits often produce misidentifications because o ... | 1991 | 1755919 |
| effect of chewing qat on mucosal histology and prevalence of helicobacter pylori in the oesophagus, stomach and duodenum of yemeni patients. | this investigation was aimed at assessing whether the yemeni habit of chewing qat on a regular basis had a significant effect on the upper alimentary tract. seventy patients with dyspepsia attending al-thawra hospital in taiz, yemen republic were examined by endoscopy. biopsies were taken from the oesophagus, stomach and duodenum. the patients included 28 who gave a history of daily qat intake, 21 with less frequent intake and 21 who took none. the only statistically significant finding associat ... | 1991 | 1757083 |
| evaluation of liquid media for growth of helicobacter pylori. | helicobacter pylori has routinely been isolated and grown on solid media. recently, we have succeeded in obtaining growth of this organism in several liquid media in large volumes, including tryptic soy broth, mueller-hinton broth, brucella broth, brain heart infusion broth, and columbia broth. growth was tested in the media with and without supplementation. growth was obtained after incubation under microaerobic conditions and with co2 enrichment. growth in a stationary system versus that in an ... | 1991 | 1757556 |
| dyspeptic complaints, diet, gastric mucosa and helicobacter pylori among an estonian urban population. | a representative sample of an adult population, earlier examined by gastroscopic biopsy, was subjected to correlation and regression analyses to quantitate the influences of different factors on the development of three dyspeptic complaints. in this study a large part of the complaints were incriminated by the subjects to poor tolerance of certain foods and/or beverages. according to the results of formal analysis, the state of the corpus and antral mucosa and the presence of helicobacter pylori ... | 1991 | 1759115 |
| helicobacter pylori in dyspeptic patients: quantitative association with severity of gastritis, intragastric ph, and serum gastrin concentration. | the relationship between different features of gastric mucosal inflammation, intragastric ph and serum gastrin concentration and the distribution and quantity of helicobacter pylori was studied in a series of 107 dyspepsia patients. h. pylori was identified in 62 cases (59%), and its presence was associated with increased amounts of mononuclear inflammatory cells and neutrophilic and eosinophilic leucocytes in both the antrum and the corpus. the number of h. pylori in the antral mucosa was signi ... | 1991 | 1759120 |
| grade of helicobacter pylori colonisation in relation to gastritis: a six-year population-based follow-up study. | the prevalence and density of helicobacter pylori (hp) colonisation was assessed twice, with an interval of six years from antral and corpus biopsies from a randomly collected estonian urban population sample. positive hp colonisation was found in either at 1st or 2nd or in both examinations in 85 out of 86 subjects in whom gastritis without atrophy (chronic inflammation without atrophic changes, sg) either developed or remained during the follow-up at the sg level. there was a clear intraindivi ... | 1991 | 1759122 |
| young onset peptic ulcer disease and non-ulcer dyspepsia are separate entities. | the characteristics of peptic ulcer and non-ulcer dyspepsia in young men were studied in 202 consecutive conscripts who attended central military hospital in helsinki because of long-standing upper abdominal complaints. active peptic ulceration (apu) was found in 48 patients, inactive peptic ulcer disease (ipu) was diagnosed in 77 patients, non-ulcer dyspepsia (nud) was diagnosed in 52 patients. in 25 cases the reason for symptoms was another disease, and these patients were excluded from the st ... | 1991 | 1759126 |
| helicobacter pylori and duodenal ulcer. a study of duodenal ulcer patients and their first-degree relatives. | out of 59 duodenal ulcer (du) probands and their 199 first-degree relatives giemsa-staining for the determination of helicobacter pylori (hp) was performed in 51 probands and 155 relatives. controls were matched by age and sex from a family sample representing the same geographical area. in all, 155 controls were found for the probands and relatives. the occurrence and score of hp density showed an excellent correlation with morphology of the mucosa, signs of acute inflammation and presence of g ... | 1991 | 1759128 |
| helicobacter pylori and chronic gastritis: an increased risk of peptic ulcer? a review. | | 1991 | 1759130 |
| grade of helicobacter pylori colonisation, chronic gastritis and relative risks of contracting high gastric ulcers: a seven-year follow-up. | a series of 38 patients with high gastric ulcer (gu) was examined twice a seven-year interval. one-third of the patients had an active ulcer at the second examination. chronic gastritis was evaluated, and the level of helicobacter pylori (hp) colonisation assessed semiquantitatively. the results were compared with age and sex matched non-ulcer controls. the gu series differed from the controls in having a higher degree of hp colonisation in gastric mucosa. the relative risks (rr) in predicting h ... | 1991 | 1759132 |
| long-term effect of vagotomy on gastric mucosa and helicobacter pylori in duodenal ulcer patients. | the purpose of the study was to evaluate the long-term effects of vagotomy on the morphological status and helicobacter pylori infestation of the gastric mucosa. endoscopy with biopsies (2 from antrum and 2 from corpus) was performed in 317 patients on whom vagotomy had been performed on an average 8 years earlier. the success of the vagotomy was estimated by the endoscopic congo red technique in 270 cases. non-operated 187 duodenal ulcer patients were examined endoscopically and bioptically in ... | 1991 | 1759134 |
| helicobacter pylori: histological and serological study on gastric and duodenal ulcer patients in estonia. | we have examined the occurrence of helicobacter pylori (hp) infection in 86 estonian gastric ulcer (gu) and 25 duodenal ulcer (du) patients. diagnosis of the hp infection was made histologically (modified giemsa) from gastric biopsy specimens, and serologically by parallel use of two enzyme-linked immunosorbent assays for igg antibodies to hp in patient sera. the infection was diagnosed simultaneously by all three methods in 84% of the gu and 84% of the du patients. the infection was revealed hi ... | 1991 | 1759135 |
| helicobacter pylori and gastritis in children with abdominal complaints. | gastroscopy with biopsies was performed in 178 children with upper abdominal pain. of them 109 (61%) had gastritis and 104 (58%) helicobacter pylori (hp) in antrum and/or corpus. gastritis consisted in most cases (87% of antral and 86% of corpus gastritis) of mild superficial round cell infiltration. mucosal atrophy was not found. accumulation of granulocytes was present in 43 patients and lymphonoduli were found in 33 patients, usually in connection with gastritis. gastritis affected only the a ... | 1991 | 1759137 |
| [gastritis and campylobacter pylori. 85 cases]. | | 1991 | 1759317 |
| omeprazole in short-term treatment of helicobacter pylori positive duodenal ulcer. | | 1991 | 1760568 |
| [helicobacter pylori colonization in surgical patients]. | the prevalence of helicobacter pylori (hp) was examined in 387 patients undergoing endoscopy of the upper gastrointestinal tract. of central interest was the question to which extent surgical intervention influences the colonisation of the gastric mucosa with hp. the bacillic status was appraised using double microbiological examinations, histological determination and the clo-test. in 229 patients a 13c-urea-breath test was also carried out (sensitivity 98%). hp could be detected in 90% of all ... | 1991 | 1760952 |
| characterization of an immunoreactive species-specific 19-kilodalton outer membrane protein from helicobacter pylori by using a monoclonal antibody. | immunoblotting experiments on hyperimmune rabbit serum and sera from patients with helicobacter pylori gastritis showed a consistent antibody response to a 19-kda outer membrane protein antigen. a monoclonal antibody, designated hp 40, which reacted by western immunoblotting with this protein was produced. it was shared by all h. pylori strains tested (d 273, nctc 11637, and 24 wild strains) but not by the thermophilic campylobacter species, campylobacter fetus, helicobacter mustellae, or helico ... | 1991 | 1761682 |
| serodiagnosis of helicobacter pylori: comparison of enzyme-linked immunosorbent assays. | enzyme-linked immunosorbent assays (elisas) have been developed to diagnose helicobacter pylori infection. however, the methods are not standardized. we therefore prospectively evaluated the sensitivities and specificities of elisas developed in the united states and the united kingdom in a study population comprising 41 consecutive symptomatic outpatients and 35 volunteers. at endoscopy, multiple biopsies were obtained for histology and culture and stained sections were graded for chronic gastr ... | 1991 | 1761685 |
| indirect immunofluorescence assay for detection of helicobacter pylori in human gastric mucosal biopsies. | to determine sensitivity and specificity of immunofluorescence assay (ifa) for detection of helicobacter pylori, we studied 151 patients. biopsies of gastric mucosae were obtained for culture, histological testing, and ifa. h. pylori serum antibodies were tested by enzyme-linked immunosorbent assay. ifa was done on formalin-preserved, paraffin-embedded biopsies by using rabbit anti-h. pylori and goat anti-rabbit gamma globulin-fluorescein isothiocyanate conjugate. the sensitivity and specificity ... | 1991 | 1761700 |
| effect of biliary tract procedures on duodenogastric reflux and the gastric mucosa. | the effect of alterations in the biliary tract on the gastric milieu was evaluated in gallstone disease and after cholecystectomy or biliary fenestration and compared with a control group. endoscopic bile reflux was often found in gallstone patients (67%) and almost always after cholecystectomy (89%). gastric bile acid concentrations were greater in the gallstone patients than in the control patients, were higher still after cholecystectomy, and were highest after biliary fenestration. the ph of ... | 1991 | 1763297 |
| [helicobacter pylori: can it be a contributing factor in peptic ulcer in childhood?]. | helicobacter pylori is a recently identified microorganisms which is thought to be the causing agent of the peptic acid disease in children as well as in adults. it is currently accepted that frequent relapses of this illness in spite of an adequate treatment can be associated to the faulty eradication of this bacteria. this article outlines the characteristics of h. pylori, its incidence, pathogenesis, as well as the current diagnostic methods used and the treatment applied. | 1991 | 1764199 |
| gastroenterological emergencies in the tropics. | significant differences exist in the prevalence of most gastroenterological emergencies in tropical compared with temperate countries. both ethnic and environmental (often clearly defined geographically) factors are relevant. the major oesophageal lesions which can present acutely in tropical countries are varices and carcinoma; bleeding and obstruction are important sequelae. peptic ulcer disease (and its complications), often associated (not necessarily causally) with helicobacter pylori infec ... | 1991 | 1764626 |
| the epidemiology of helicobacter pylori infection. | the evidence that h. pylori causes gastritis in humans comes from both primary and secondary observations. the most important primary observations are the human volunteer studies, the animal models, and the treatment studies with antimicrobial agents. supporting information comes from studies showing the specific association of h. pylori infection with type b gastritis and with gastric (but not intestinal) epithelial cells; the specific ultrastructural lesions, including adherence pedestals; the ... | 1991 | 1765119 |
| [relationship between helicobacter pylori and antral gastritis and gastroduodenitis]. | morphological data on the biopsies obtained from the antral gastric mucosa of 150 chronic gastritis and gastroduodenitis patients provided grounds for recognition of 3 degrees of gastritis activity. helicobacter pylori (cp) occurred in the antral gastric portion in 100% of the cases. cp presence and mucosa contamination, plasmocytic infiltration, dystrophic changes in the surface and glandular epithelium were found to correlate. administration of ampiox in a daily dose of 1.0 g for 10 days resul ... | 1991 | 1766223 |
| prevalence of helicobacter pylori in patients with end-stage renal failure and renal transplant recipients. | the prevalence of helicobacter pylori was determined using an elisa technique for igg antibodies to h. pylori in 76 patients with end-stage renal failure who were receiving regular haemodialysis and 202 patients with functioning renal transplants. twenty-seven (34%) of the haemodialysis group and 58 (29%) of the transplant group were positive for h. pylori igg antibodies, and the prevalence did not differ significantly from that in 247 age-matched healthy controls. in the haemodialysis group, pa ... | 1991 | 1766499 |
| [significance of campylobacter pylori in the surgical treatment of stomach and duodenal ulcer]. | | 1991 | 1767324 |
| [chronic primary gastroduodenitis and helicobacter pylori--their relationship]. | | 1991 | 1767327 |
| [helicobacter (campylobacter) pylori in stomach and duodenal biopsies]. | in bioptic specimens of the gastric mucosa of 57 patients with dyspeptic complaints and/or a duodenal ulcer helicobacter pylori was detected under the microscope in 82,4% of chronic active gastritis and in 28,6% and 61,5% resp. of chronic gastritis grade i and ii. the finding of helicobacteria depended on the number of collected specimens. they were never found at sites with intestinal metaplasia and their numbers did not correspond to the intensity and character of the inflammatory changes. as ... | 1991 | 1769044 |
| the role of helicobacter pylori in gastroduodenal disease. | peptic ulcers are the result of a wide variety of factors, with h. pylori probably being one of the more significant. h. pylori has been most strongly associated with gastritis and duodenal ulcer disease. the relationship of h. pylori to gastric ulcers is less substantial. the eradication of h. pylori can be achieved in the majority of patients with triple antibiotic therapy. however, resistance to metronidazole occurs readily. eradication of h. pylori can change the course of duodenal ulcer dis ... | 1991 | 1769198 |
| [helicobacter pylori and duodenal ulcer. long-term results of triple sucralfate antibiotic therapy]. | | 1991 | 1769484 |
| helicobacter pylori infection: a novel risk factor in the etiology of gastric cancer. | | 1991 | 1770545 |
| gastric adenocarcinoma and helicobacter pylori infection. | helicobacter pylori infection, thought to be causally related to chronic gastritis, may also be associated with an increased risk of gastric cancer. to determine whether an association with gastric cancer does exist, we retrospectively evaluated serum samples from 69 patients with histologically confirmed gastric adenocarcinoma (32 with cancer at the cardia and 37 with cancer at other sites) and from 218 patients with one of three categories of nongastric cancers, with other gastric cancers, or ... | 1991 | 1770552 |
| [chronic active surface-positive campylobacter antrum gastritis-- morphological changes 1 year after treatment with bismuth]. | the works is based on a previous investigation published in the journal vnitrní lékarství, 36, 1990, 8, pp. 759-762. the authors investigated morphological changes of the gastric mucosa and the presence of campylobacter pylori (cp) in probands with chronic active surface cp positive antrum gastritis one year after treatment with a bismuth preparation (bismuth citrate 120 mg per capsule made on prescription) for a one-month period 4 capsules per day. this concerned probands with functional dyspep ... | 1991 | 1771809 |
| [helicobacter pylori after proximal selective vagotomy]. | the authors examined histologically in 40 patients after proximal selective vagotomy on account of duodenal ulceration specimens of the antral mucosa for the presence of helicobacter pylori. the latter was detected in 38 (95%) patients. the intensity of colonization evaluated semiquantitatively was not directly related to the dyspeptic complaints. no relapses of ulcers were observed and the author's experience does not confirm the theory of a direct part played by helicobacter in the manifestati ... | 1991 | 1771810 |
| [the treatment of patients with chronic gastritis]. | | 1991 | 1771849 |
| [helicobacter pylori colonization of the gastric mucosa in rheumatic patients]. | this study examines whether infections with helicobacter pylori are more frequent in patients suffering from rheumatoid arthritis than in patients with non-inflammatory rheumatic diseases. the study furthermore examines whether the colonisation by h. pylori is favoured by antiphlogistic-antirheumatic treatment. for this purpose gastric biopsies obtained by endoscopy from 123 patients were histologically evaluated for the presence of h. pylori. 85 patients with rheumatoid arthritis were compared ... | 1991 | 1771932 |