Bibliothek

feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
  • 1
    ISSN: 1574-695X
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie , Medizin
    Notizen: A new therapeutic approach for inflammatory bowel diseases is based on the administration of probiotic bacteria. Prokaryotic DNA contains unmethylated CpG motifs which can activate immune responses, but it is unknown whether bacterial DNA is involved in the beneficial effects obtained by probiotic treatment. Peripheral blood mononuclear cells (PBMC) from healthy donors were incubated with pure DNA of eight probiotic strains and with total bacterial DNA from human feces collected before and after probiotic ingestion. Cytokine production was analyzed in culture supernatants. Modification of human microflora after probiotic administration was proven by polymerase chain reaction analysis. Here we show that Bifidobacterium genomic DNA induced secretion of the antiinflammatory interleukin-10 by PBMC. Total bacterial DNA from feces collected after probiotic administration modulated the immune response by a decrease of interleukin-1β and an increase of interleukin-10.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 2
    ISSN: 1573-2568
    Schlagwort(e): Crohn's disease ; 5-aminosalicylic acid ; therapy
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Treatment of Crohn's disease (CD) in clinical remission is still a debated issue. Previous studies have shown a high risk of relapse for patients with CD in clinical remission (CDAI〈150) but with some abnormally high laboratory parameters as well as a possible beneficial role of low-dosage steroid treatment in this group of patients. Furthermore, good results have been reported on the efficacy of 5-aminosalicylic acid (5-ASA) in moderately active CD. In our study we verified the efficacy of a slow-release oral 5-ASA preparation in preventing relapses in a group of patients in clinical remission but with raised laboratory parameters. Forty-four patients were randomized in a double-blind manner to receive either 5-ASA (2 g/day) or placebo for four months. Location of disease and previous steroid treatment were similar in both groups. One patient in the 5-ASA group discontinued the drug because of uterine bleeding. During the study period, 13 of 22 placebo-treated patients and 11 of 21 5-ASA-treated patients relapsed (corrected chi square=NS). Considering the location of disease, three of 10 patients in the 5-ASA group and six of nine patients in the placebo group with ileal CD relapsed (therapeutic gain with 5-ASA: 36.6%; 95% allowance for error from −6% to 79.2%). Moreover, in seven patients with ileal CD who remained in remission, we found a statistically significant decrease in α1 acid glycoprotein and C-reactive protein from the second month of the study. In conclusion, although results with 5-ASA in CD seem disappointing, the possible benefit of higher dosages of 5-ASA in selected subgroups of CD patients is discussed.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 3
    Digitale Medien
    Digitale Medien
    Springer
    Digestive diseases and sciences 27 (1982), S. 1141-1142 
    ISSN: 1573-2568
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 4
    ISSN: 1573-2568
    Schlagwort(e): respiratory brust ; Crohn's disease ; ulcerative colitis ; elastase ; ferricytochromec
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The activation of circulating polymorphonuclear leukocytes was determined in terms of superoxide radical generation and granulocyte elastase release in untreated patients with ulcerative colitis (N=10) and Crohn's disease (N=9) in remission and in control subjects (N=10). Superoxide radical generation was determined by monitoring spectro-photometrically the reduction of ferricytochrome, after stimulation of cells with phorbol myristate acetate. Plasma elastase concentration was measured by a solid-phase enzyme immunoassay technique as the complex with alpha-1-proteinase inhibitor. Superoxide formation by polymorphonuclear leukocytes from patients with ulcerative colitis and Crohn's disease was significantly lower compared with controls [median (range) nmol/min/mg protein: Crohn's disease 7.8 (7.1–9.6); ulcerative colitis 8.25 (7.4–10.3); controls 14.7 (13.6–15.8)] (P 〈 0.001), while no difference was found between the two groups of patients. In contrast plasma elastase levels in patients with ulcerative colitis and Crohn's disease were similar to that of controls. This defective respiratory burst of polymorphonuclear leukocytes in patients with inflammatory bowel disease in remission, in absence of an altered degranulation, could represent an important factor for the pathogenesis of these diseases.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 5
    ISSN: 1573-2568
    Schlagwort(e): 5-ASA ; rectal foam ; suspension enema ; retrograde spread ; biodistribution study ; scintigraphic study
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Rectal treatment with enemas, foams, and suppositories is the most efficient method of delivering an adequate quantity of locally active drugs to the distal colon. In a pilot study carried out by colonoscopy in four patients, it was observed that 4 g 5-ASA in 20 ml foam spread up or beyond the splenic flexure and more extensively than 2 g 5-ASA in 10 ml foam. Therefore we have undertaken a study in order to compare by scintigraphy the colonic distribution of 4 g 5-ASA foam versus 4 g 5-ASA in 100 ml liquid enemas in 10 patients with ulcerative colitis using a crossover randomized design. Both preparations were labeled with 100 MBq [99mTc] sulfur colloid before administration. Anterior scans were taken at intervals for 4 hr. Activity, expressed as a percentage of total radioactivity, was measured in the rectum, sigmoid, descending, transverse, and ascending colon. Six patients had the same extent of spread with the two formulations; in three patients with foam and in one patient with enema a greater spread was observed. the foam reached the upper limit of disease in all cases, while enema failed in two cases. The maximum spread with foam was observed within 30 min in nine of 10 patients compared with seven of 10 after enema. Compared to enema, foam distributes more uniformly and seems to persist longer in the descending and sigmoid colon. The 5-ASA colonic foam shows some more favorable characteristics than enema for the local treatment of left-sided ulcerative colitis.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 6
    ISSN: 1573-2568
    Schlagwort(e): 5-aminosalicylic acid ; mesalazine ; mesalamine ; proctosigmoiditis ; distal ulcerative colitis ; leftsided colitis ; rectal treatment ; rectal liquid enema ; rectal foam
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract We evaluated the efficacy, tolerance, and acceptance of a new 5-ASA colonic foam versus 5-ASA liquid enema in the short-term treatment of active ulcerative colitis in a three-week prospective, randomized, investigator-blind study, enrolling 233 patients from 12 outpatient clinics in Italy. In arm 1 of the study, 117 patients with mild attacks received 2 g of 5-ASA as foam or enema at bedtime. In arm 2, 116 patients with moderate attacks were given 4 g of 5-ASA as foam or enema at bedtime. End points were defined as complete relief of symptoms, and endoscopic and histological evidence of remission or improvement. In patients with mild relapse, 34 of 63 (54%) treated with foam were in clinical remission after only 10 days compared with 17 of 51 (31%) treated with enemas (P〈0.05). However, there was no statistically significant difference between foam (83%) and enema (74%) after three weeks. In patients with moderate relapse, a higher proportion of patients achieved complete clinical remission in the foam group (63%) compared with enema group (52%) after three weeks (difference 11%, 95% CI −7 to 29). No significant differences were observed in endoscopic and histological evaluation of colonic mucosa between treatment groups in either arm. 5-ASA foam was well tolerated. No unexpected adverse events were reported. Patient evaluation of therapy showed that foam was much better accepted than enema because foam was more comfortable, more practical, easier to retain, and interfered less with daily living. The results of this study suggest that 5-ASA foam may provide prompter remission of symptoms compared to liquid enema and it improves the quality of topical therapy in ulcerative colitis.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 7
    ISSN: 1573-2568
    Schlagwort(e): abdominal ultrasonography ; 111-indium scan ; Crohn's disease
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The aim of this study was to compare the results obtained with an indium-111 scan with those obtained with less expensive and harmless ultrasonography to evaluate the location and inflammatory activity of Crohn's disease. Thirty-one patients previously studied with x-ray underwent abdominal111In scans and ultrasonography (US). Sensitivity and specificity of US in detecting lesions seen with111In scan were 77% and 92.8%, respectively. Sensitivity and specificity of111In scan in detecting x-ray-defined lesions were 69.2% and 92.7%; the figures for US were 73% and 93.3%, respectively. Considering the evaluation of disease activity, ultrasonographic bowel wall thickness was significantly related to scintigraphic intensity of emission (r=0.75 P〈0.01). Our experience suggests that US provided information about the location and inflammatory activity of lesions similar to that obtained from111In scan.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 8
    ISSN: 1573-2568
    Schlagwort(e): NITRIC OXIDE ; LEUKOTRIENES ; RECTAL DIALYSIS ; RAT TNB COLITIS
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Nitric oxide is thought to play an importantrole in modulating the inflammatory process. Recently anincrease in the inducible form of nitric oxide synthase(iNOS) has been found in the rat trinitrobenzene sulfonic acid model of experimental colitis,and inhibition of nitric oxide synthase activityresulted in an amelioration of tissue injury. The aim ofour study was to evaluate in vivo intracolonic release of nitric oxide in this model of colitis.Experimental colitis was induced in male Sprague-Dawleyrats by a single intracolonic administration oftrinitrobenzene sulfonic acid. Nitrite levels weredetermined in rectal dialysates by HPLC. The tissuemyeloperoxidase and iNOS and the luminal leukotrieneB4 were also measured. Nitrite levels weresignificantly increased in rectal dialysates duringcolitis and correlated significantly with tissue myeloperoxidase andiNOS activity. The correlation between nitrite dialysatelevels and wall iNOS activity confirms that nitrite indialysates is produced by inflammatory cells and not by colonic bacterial flora.Determination of nitrite levels in rectal dialysatesseems a valuable method to monitor colonic inflammationin rat trinitrobenzene sulfonic acid colitis.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...