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Showing papers on "Ulcerative colitis published in 1986"


Journal ArticleDOI
01 Feb 1986
TL;DR: The role of anticoagulation and surgical intervention in the management of hypercoagulation in patients with inflammatory bowel disease is discussed.
Abstract: During an 11-year period from January 1970 to December 1980, 7,199 patients at our institution had chronic ulcerative colitis or Crohn's disease. Thromboembolic complications developed in 92 (1.3%) of these patients. An additional 4 patients had cutaneous vasculitis, and 17 had an arteritis-associated diagnosis. Of the thromboembolic complications, 61 were deep vein thromboses or pulmonary emboli. The mortality among patients with thromboembolic complications was high (25%). Sixty percent of the patients had a thrombocytosis unaffected by sulfasalazine or corticosteroid therapy. In 73% of the patients, the erythrocyte sedimentation rate was increased, and when measured, fibrinogen and factor VIII were commonly elevated. Peripheral arterial thrombosis, coronary thrombosis, and mesenteric and portal vein thrombosis were predominantly postsurgical complications, but 77% of peripheral venous thromboses occurred spontaneously. The role of anticoagulation and surgical intervention in the management of hypercoagulation in patients with inflammatory bowel disease is discussed.

609 citations


Journal ArticleDOI
TL;DR: Investigation has aimed to determine the prevalence of inflammation, to define pouchitis and to examine some factors which might be related to inflammation.
Abstract: The significance of inflammation of the mucosa of the ileal reservoir after restorative proctocolectomy is not known although in some cases it appears to be associated with symptoms when the condition has been referred to as pouchitis. This investigation has aimed to determine the prevalence of inflammation, to define pouchitis and to examine some factors which might be related to inflammation. Mucosal biopsies from the ileal reservoir were studied in 90 patients at up to 62 months after closure of the ileostomy. A histological grading system (0–6) was used to assess the severity of inflammation. Some degree of chronic and acute inflammation was found in 87% and 30% of cases respectively. The prevalence of a grade of 4 or more was 23% and 3.5%. There was a correlation between severity of chronic and acute inflammation. Severe histological acute inflammation (grade 4–6) was associated with sigmoidoscopic features of inflammation and with increased frequency of defaecation. Of 55 patients sigmoidoscoped by one clinician, 6 (11%) had pouchitis which was characterised by macroscopic inflammation of the reservoir, diarrhoea and a histological grade of 4 or more. The severity of chronic inflammation was not related to frequency of defaecation. Histological inflammation could not be correlated with the type of reservoir, residual volume after evacuation of a known volume of stool substitute introduced per anum into the reservoir or compliance of the reservoir. Acute inflammation was significantly more severe in patients with ulcerative colitis than in those with familial adenomatous polyposis.

345 citations


Journal ArticleDOI
01 Jan 1986-Gut
TL;DR: The Crohn's disease activity index, a similar index devised for patients with ulcerative colitis, and other commonly used laboratory indicators of disease activity have been studied in 50 patients with colonic inflammatory bowel disease undergoing routine colonoscopic assessment and compared with the histological extent and activity of disease.
Abstract: The Crohn's disease activity index, a similar index devised for patients with ulcerative colitis, and other commonly used laboratory indicators of disease activity have been studied in 50 patients with colonic inflammatory bowel disease undergoing routine colonoscopic assessment and compared with the histological extent and activity of disease. There was only poor correlation between the colonoscopic or histological findings and the indices of disease activity studied, showing that these are not reliable measures of disease activity or extent at the tissue level.

333 citations


Journal ArticleDOI
TL;DR: Indium 111-granulocyte scans are a rapid, accurate, noninvasive means of assessing both disease extent and severity of colonic involvement in inflammatory bowel disease.

268 citations


Journal ArticleDOI
TL;DR: Luminal prostaglandin E2 and leukotriene B4 levels may prove more useful predictors of the outcome of treatment in relapsing ulcerative colitis than clinical indices of disease activity.

260 citations


Journal ArticleDOI
01 Oct 1986-Gut
TL;DR: A prospective double blind controlled trial was undertaken to examine the role of metronidazole as an adjunct to corticosteroids in the management of severe ulcerative colitis, and results do not support the routine use of intravenous metronIDazole in the treatment of severe Ulcerative Colitis.
Abstract: A prospective double blind controlled trial was undertaken to examine the role of metronidazole as an adjunct to corticosteroids in the management of severe ulcerative colitis. Thirty nine patients with severe ulcerative colitis were randomised on admission to hospital to receive either intravenous metronidazole 500 mg eight hourly (19 patients) or an identical intravenous placebo (20 patients). The two groups were similar with respect to age, sex, and the extent of colitis. In addition all patients received a standard intravenous regimen consisting of methyl prednisolone 16 mg six hourly and parenteral nutrition together with a twice daily hydrocortisone 100 mg enema. Treatment was continued for five days when the patients were formally assessed. Fourteen of 19 patients (74%) receiving metronidazole and 14/20 (70%) receiving placebo were substantially improved, or in remission at the end of five days. Five patients treated with metronidazole and six with placebo had no improvement and all proceeded to urgent colectomy with no operative mortality. There were three late deaths, one in the metronidazole and two in the placebo group. These results do not support the routine use of intravenous metronidazole in the treatment of severe ulcerative colitis.

258 citations


Journal ArticleDOI
01 May 1986-Gut
TL;DR: Although patients with severe, acute, non-infective colitis treated with 60 mg intravenous prednisolone daily, received either bowel rest with parenteral nutrition or oral diet, there were no differences in the operation or mortality rates between the groups.
Abstract: In a prospective, randomised clinical trial, 47 patients with severe, acute, non-infective colitis treated with 60 mg intravenous prednisolone daily, received either bowel rest with parenteral nutrition or oral diet. Although those who received 'bowel rest' experienced a reduction in daily stool weight, there were no differences in the operation or mortality rates between the groups. Fourteen of the 27 patients with ulcerative colitis, but none of the 16 patients with Crohn's disease required urgent surgery. Bowel rest did not affect the outcome in severe ulcerative colitis treated with intravenous prednisolone. Ulcerative colitis and Crohn's colitis behaved differently in the acute attack.

226 citations


Journal ArticleDOI
TL;DR: Azodisal sodium appears to be an effective agent for the maintenance treatment of ulcerative colitis and male fertility appeared to be unaffected.

180 citations


Journal ArticleDOI
TL;DR: 6-Mercaptopurine should not be reinstituted once it has caused pancreatitis, and desensitization attempted by a gradual increase in dose from 1/8 tablet (approximately 6 mg) daily also led to recurrence.

142 citations


Journal Article
TL;DR: Observations indicate that inhibition of beta-oxidation produces acute colitis and suggests that inhibited beta-Oxidation is primary rather than secondary in the genesis of ulcerative colitis, which suggests a search for agents producing such biochemical lesions in man should be undertaken.
Abstract: There is some evidence that failure of fatty acid or beta-oxidation in the epithelium of the colonic mucosa is associated with the development of ulcerative colitis. We tested the hypothesis that inhibition of fatty acid oxidation in the colonic mucosa of the rat reproduces the histological, clinical and biochemical lesions of acute ulcerative colitis of man. A specific inhibitor of beta-oxidation, sodium 2-bromo-octanoate, was instilled rectally for 5 days or exposed to isolated colonic epithelial cells which were subsequently tested for their ability to beta-oxidize n-butyrate. Weight loss, bloody diarrhoea and histological lesions occurred with 2-bromo-octanoate treated rats but not control animals. Ketogenesis and 14CO2 production was inhibited by 2-bromo-octanoate. Of 12 animals mucosal ulceration developed in six out of eight surviving animals and in all four animals that died. Ulceration, mucus cell depletion, vessel dilatation and increases of inflammatory cells were the most prominent histological changes. Present observations indicate that inhibition of beta-oxidation produces acute colitis and suggests that inhibition of beta-oxidation is primary rather than secondary in the genesis of ulcerative colitis. A search for agents producing such biochemical lesions in man should be undertaken.

141 citations


Journal Article
TL;DR: Increased spontaneous IgG secretion by ulcerative colitis intestinal MNC was primarily due to markedly increased production of IgG1, while Crohn's disease intestinal M NC exhibited increased spontaneous secretion of all the IgG subclasses examined, with IgG2 being predominant.
Abstract: Spontaneous IgG and IgG subclass secretion patterns by isolated intestinal mononuclear cells (MNC) from control and inflammatory bowel disease (IBD) specimens were examined. Intestinal MNC from IBD specimens spontaneously secreted more total IgG than did control intestinal MNC. This increased spontaneous IgG secretion by ulcerative colitis intestinal MNC was primarily due to markedly increased production of IgG1. Slightly increased secretion of IgG3, but not IgG2 by ulcerative colitis intestinal MNC was present when compared with control and Crohn's disease intestinal MNC. In contrast, Crohn's disease intestinal MNC exhibited increased spontaneous secretion of all the IgG subclasses examined, with IgG2 being predominant.

Journal ArticleDOI
TL;DR: The idiopathic inflammatory bowel diseases comprise a spectrum of disorders that are marked by the presence of chronic inflammation of the gastrointestinal tract which cannot be ascribed to a specific pathogen.
Abstract: The idiopathic inflammatory bowel diseases (IBD) comprise a spectrum of disorders that are marked by the presence of chronic inflammation of the gastrointestinal tract which cannot be ascribed to a specific pathogen (1, 2). At one end of the spectrum is ulcerative colitis, a disease that affects the large bowel exclusively and which is characterized by mucosal ulceration, superficial inflammatory-cell infiltration of the bowel wall, and, in extensive long-standing cases, neoplastic transformation. Prominent symptoms in this form of IBD include severe bloody diarrhea, pain on defecation, weight loss, and, in children, growth failure. At the other end of the spectrum is Crohn's disease (regional enteritis or regional ileitis), a disease that in contrast to ulcerative colitis can affect any part of the alimentary canal, from the mouth to the rectum, but which most commonly involves the terminal ileum and the ascending colon. In this condition, the major pathology consists of a focal, transmural inflammatory,cell infiltration that is sometimes granulomatous in character and which may be complicated by intestinal strictures, fistula formation, and perforation, Symptoms that commonly occur in Crohn's disease include abdominal pain of a cramping nature and systemic complaints such as fever

Journal ArticleDOI
01 Oct 1986-Cancer
TL;DR: This Study supports the concept that surveillance colonoscopy should be started after 8 to 10 years of extensive colitis and after 15 years of left‐sided colitis, and significantly increases the risk of colorectal cancer in patients with extensive colopathy.
Abstract: In a review of 1248 cases of ulcerative colitis seen at the Cleveland Clinic that were followed up to 1984 (mean, 14.4 years), 82 patients (6.5%) were subsequently found to have colorectal cancer and 48 (3.8%) had extracolonic malignancy, 6 of them with associated colorectal cancer. Most patients with colorectal cancer were men (2:1), and had extensive (90%) and long-lasting colitis (10 years or more in 93% of cases; mean 18 years). Colitis was inactive before the diagnosis of cancer in 48%. Acute onset of the first attack was rare (7%), and the disease had a remittent course in 92%. The mean age at diagnosis of cancer was 43 years. The cumulative risk of colorectal cancer was significantly higher in patients with extensive colitis than in those with left-sided disease (P < 0.0001: 11.9% vs. 1.8% at 20 years and 25.3% vs. 3.7% at 30 years). When comparing mean duration of disease, left-sided colitis (22 years) did not differ significantly from extensive disease. The tumor was multifocal in 13.5%, proximal to the splenic flexure in 44%, and poorly differentiated in 34% of the cases. The diagnosis was suspected clinically in 64% of cases. The prognosis of colorectal cancer in patients with ulcerative colitis appears to be similar to that in the general population. The cumulative 5-year survival rate was 54%. This study supports the concept that surveillance colonoscopy should be started after 8 to 10 years of extensive colitis and after 15 years of left-sided colitis. Among those with extracolonic malignancy, the incidence of bile duct carcinoma, leukemia, bone tumors, and endometrial cancer was significantly greater than expected (P < 0.01), whereas that of lung cancer was significantly lower than expected (P < 0.01). Cancer 58:1569-1574, 1986. OLORECTAL CANCER is known to be a complication C of ulcerative colitis with a reported incidence of 2% to 5%;'-13 however, the risk of cancer is cumulative with time5,6 and is higher in patients with extensive colitis of greater than 8 to 10 years duration.2-6 Early development of ~olitis~,~ and acute onset of the first attack6 are considered risk factors by some authors, but not others.' Some authors have stated that involvement of the left side of the colon only does not carry an increased risk of cancer2.'; others suggest that even in this group the risk is increased, particularly after the colitis has lasted 25 to 30 years.' In patients with ulcerative colitis, cancer frequently tends to be multicentric,'.6 right-~ided,~ and associated with a poor prognosis''; however, more recent studies suggest that the prognosis is no different than for that of colorectal cancer occumng in the general population.8,' ',I2 Subtotal colectomy offers no protection from the inherent risk of malignancy developing in the rectal ~tump.'~-'~ As a means of identifying subgroups of colitis patients who are at high risk of malignancy, Morson and Pang

Journal ArticleDOI
01 Jul 1986-Gut
TL;DR: It is shown that patients with ulcerative colitis may be constitutionally different from those with Crohn's disease and unable to mount a major acute phase response to their own disease.
Abstract: Thirty eight patients with Crohn's disease and 30 patients with ulcerative colitis have been assessed using the technique of faecal excretion of 111Indium granulocytes to quantify precisely acute inflammatory activity. At the time of each faecal granulocyte measurement the serum concentration of the acute phase protein C-reactive protein and the erythrocyte sedimentation rate were estimated. C-reactive protein concentration was significantly higher in Crohn's disease than ulcerative colitis both overall and particularly in relation to given levels of granulocyte excretion. No such distinction was observed between the erythrocyte sedimentation rates in the two diseases. The present findings show that the acute phase response differs significantly between Crohn's disease and ulcerative colitis. Patients with ulcerative colitis may be constitutionally different from those with Crohn's disease and unable to mount a major acute phase response to their own disease.

Journal ArticleDOI
TL;DR: Recurrent bleeding from peristomal varices was a major problem; 7 of 10 patients required repeated blood transfusions and there was no perirectal bleeding in 4 patients with primary sclerosing cholangitis who underwent proctocolectomy with an ileoanal anastomosis.

Journal ArticleDOI
01 Jan 1986-Gut
TL;DR: Sera from eight of 15 patients with primary sclerosing cholangitis, ulcerative colitis and anticolon antibody reacted with portal tracts of human obstructed liver, indicating a close relationship between HLA-B8 phenotype and the portal tract antibody.
Abstract: The aetiology of primary sclerosing cholangitis is unknown, but it is closely associated with ulcerative colitis. Serum anticolon antibodies, crossreacting with portal tracts, have been reported in patients with ulcerative colitis but no studies have been carried out in primary sclerosing cholangitis. The frequency of serum anticolon antibodies and portal tract antibodies have been measured in 24 patients with primary sclerosing cholangitis and ulcerative colitis; 15 patients with primary sclerosing cholangitis without ulcerative colitis; 77 patients without primary sclerosing cholangitis: 25 patients with Crohn's colitis; 10 patients with primary biliary cirrhosis; 22 patients with extrahepatic biliary obstruction and 20 normal controls. Serum anticolon and portal tract antibodies were detected using immunoperoxidase techniques on normal colon and obstructed human liver. Tissue typing was undertaken using a standard microcytotoxicity technique. The frequency of anticolon antibodies was markedly increased in primary sclerosing cholangitis patients with ulcerative colitis (62.5%) compared with patients with ulcerative colitis (17%) and Crohn's colitis (16%) (chi 2 = 17.9; p less than 0.001). The antibodies were almost entirely of IgG and IgA classes in all groups. Anticolon antibodies were not found in sera from any other group. Sera from eight of 15 patients with primary sclerosing cholangitis, ulcerative colitis and anticolon antibody reacted with portal tracts of human obstructed liver. This reaction was also seen in four of nine patients with ulcerative colitis and primary sclerosing cholangitis and in three of 15 patients with primary sclerosing cholangitis alone. Portal tract antibody was of IgG class and was not present in sera from any other groups. Unlike anticolon antibody, there was a close relationship between HLA-B8 phenotype and the portal tract antibody (p<0.02; chi 2 = 6.04). Absorption studies confirmed that the anticolon antibody is distinct from portal tract antibody.

Journal ArticleDOI
26 Apr 1986-BMJ
TL;DR: Both ulcerative colitis and Crohn's disease were more common among women currently using oral contraceptives than among those not doing so, and this observation provides an important clue to the aetiology of chronic inflammatory bowel disease.
Abstract: Since the start in 1968 of the Oxford Family Planning Association contraceptive study 31 women have developed ulcerative colitis and 18 have developed Crohn's disease, giving incidences of 0.15 and 0.09/1000 woman years respectively. The incidence of ulcerative colitis in women who were non-smokers on entry to the study was 0.17/1000 woman years and the incidence in smokers was 0.11/1000 woman years. The findings for Crohn's disease were entirely different, the corresponding incidences being 0.05 and 0.17/1000 woman years respectively. Both ulcerative colitis and Crohn's disease were more common among women currently using oral contraceptives than among those not doing so. Incidences per 1000 woman years for ulcerative colitis were 0.26 in users and 0.11 in non-users; for Crohn's disease the incidences were 0.13 and 0.07 respectively. Though the association between the use of oral contraceptives and chronic inflammatory bowel disease cannot be regarded as established, the effects of smoking have been shown consistently in many studies. This observation provides an important clue to the aetiology of chronic inflammatory bowel disease.

Journal ArticleDOI
TL;DR: In this article, sulfidopeptide leukotrienes (SP-LT) was found to be important mediators of inflammation in Crohn's disease (CD) and ulcerative colitis (UC).
Abstract: Release of sulfidopeptide (SP)-leukotrienes (LT)in vitro from normal human colonic mucosa and from mucosal tissue obtained from patients with Crohn's disease (CD) and ulcerative colitis (UC) was investigated. It was found that inflamed mucosal tissue released significantly more SP-LT than normal colonic mucosa both under control conditions and after addition of calcium ionophore A23187. These results indicate the presence of endogenous stimuli as well as an increased responsiveness to an exogenous stimulus of LT formation in the inflamed mucosa. Sulfasalazine (SASP), a drug used in inflammatory bowel diseases, and its active metabolite 5-aminosalicylic acid (5-ASA) were found to inhibit colonic mucosal SP-LT formation, while only 5-ASA inhibited simultaneously synthesis of another arachidonic acid-derived inflammatory mediator, prostaglandin (PG) E2. The results suggest that SP-LT might be important mediators of inflammation in CD and UC.

Journal ArticleDOI
01 Dec 1986-Gut
TL;DR: Using this surveillance programme prophylactic colectomy can be limited to patients in a high risk group developing dysplasia, and the risk of missing a cancer before it becomes incurable seems to be low.
Abstract: An eight year endoscopical and histological cancer surveillance programme comprising 71 patients with ulcerative colitis is presented. Forty one patients had total colitis and 30 substantial colitis. Mean duration of the disease was 19.7 years (range 9-46 years). An average of 2.6 colonoscopies per patient in the total colitis group were carried out, and at least two biopsies were taken at 10 locations in the colon. In the total colitis group, seven had either low (four), or high grade dysplasia (two), or Dukes' A cancer (one). In the group with substantial colitis two patients with low grade dysplasia were found. Dysplasia or cancer leading to operation was found above the rectum in four of five operated patients, all having had total colitis for 25 to 44 years. The dysplasia and cancer findings at the colonoscopy preceding surgery corresponded well with the surgical specimens. In three operated patients a sequence of dysplasia development was recorded. With the exception of long duration and dysplasia, nothing in the clinical course distinguished the operated cases. Using this surveillance programme prophylactic colectomy can be limited to patients in a high risk group developing dysplasia. The risk of missing a cancer before it becomes incurable seems to be low.

Journal ArticleDOI
TL;DR: Despite an appreciable number of postoperative complications, satisfactory function of the reservoir has been achieved in 86 of 91 patients followed up for at least three months after closure of the ileostomy, and this operation must be considered a viable alternative in patients with ulcerative colitis and familial polyposis.
Abstract: • Although total proctocolectomy with permanent ileostomy is regarded as the definitive therapy for ulcerative colitis and familial polyposis, psychologic and physical complications with this operation have stimulated the development of the operation of total abdominal colectomy, mucosal proctectomy, ileal reservoir, and ileoanal anastomosis as an alternative surgical procedure. Since 1980, 104 of these operative procedures have been completed with no operative mortality; experience has been gained with both the J- and S-type reservoirs. Despite an appreciable number of postoperative complications, satisfactory function of the reservoir has been achieved in 86 of 91 patients followed up for at least three months after closure of the ileostomy. The remaining five patients have required reinstitution of fecal diversion. Functional results have not differed between two-limbed and three-limbed reservoirs. This operation must be considered a viable alternative in patients with ulcerative colitis and familial polyposis. (Arch Surg1986;121:404-409)

Journal ArticleDOI
TL;DR: Indium 111-granulocyte scans are a rapid, accurate, noninvasive means of assessing both disease extent and severity of colonic involvement in inflammatory bowel disease.

Journal ArticleDOI
01 Mar 1986-Gut
TL;DR: The ability of systemically administered glucocorticoids to reduce diarrhoea in ulcerative colitis may be related to direct effects on distal colonic sodium and water transport, as well as to their better known anti-inflammatory action.
Abstract: The acute effects of single pharmacological doses of glucocorticoid hormones on net electrolyte and water transport and electrical potential difference (pd) in the rectum was studied in control subjects and in patients with either active or inactive ulcerative colitis, using a dialysis technique. Compared with 17 control subjects, nine patients with active ulcerative colitis exhibited marked decreases in net sodium absorption and rectal pd, while these transport parameters were normal in six patients with inactive ulcerative colitis. Intravenous administration of hydrocortisone hemisuccinate (100 mg) resulted five hours later in significant and quantitatively similar increases in net sodium and water absorption and pd in nine control subjects, seven patients with active ulcerative colitis, and six patients with inactive ulcerative colitis. Intravenous administration of methylprednisolone phosphate (40 mg) to eight control subjects produced increases in net sodium and water absorption and pd five hours later, which did not differ significantly from those produced by hydrocortisone; methylprednisolone induced similar changes in two patients with active ulcerative colitis. These results indicate that single pharmacological doses of glucocorticoids stimulate acute increases in rectal sodium and water absorption in control subjects and in patients with acute ulcerative colitis. The ability of systemically administered glucocorticoids to reduce diarrhoea in ulcerative colitis may therefore be related to direct effects on distal colonic sodium and water transport, as well as to their better known anti-inflammatory action.

Journal ArticleDOI
01 Jan 1986-Drugs
TL;DR: Sulphasalazine remains a most useful drug in the treatment of inflammatory bowel disease after 40 years of use and is possible to desensitise most patients with drug-induced skin rashes.
Abstract: Sulphasalazine, devised by Dr Nana Svartz for the treatment of ‘infective polyarthritis’, has been used in the treatment of inflammatory bowel disease for more than 40 years Many controlled trials have shown that sulphasalazine 4g daily will induce remissions in between one-half and three-quarters of patients with acute attacks of ulcerative colitis When given in a dosage of 2g daily it will prevent relapses in quiescent colitis Relapses are 5 times more likely in untreated patients It is less effective in Crohn’s disease, where it exerts only a transient benefit in patients with active colonic disease and fails to prevent relapse or recurrence

Journal ArticleDOI
01 Dec 1986-Gut
TL;DR: Evidence of cytomegalovirus infection has been sought in a consecutive series of patients requiring colonic resection for idiopathic inflammatory bowel disease confined to the colon, but the infection did not appear to influence the course of the colitis.
Abstract: Evidence of cytomegalovirus infection has been sought in a consecutive series of patients requiring colonic resection for idiopathic inflammatory bowel disease confined to the colon. Colonic tissue was examined by light and electron microscopy for cytomegalovirus inclusion bodies and cytomegalovirus antigen was sought using an immunoperoxidase technique. Cytomegalovirus infection was identified in three of 26 patients studied, but the infection did not appear to influence the course of the colitis. Although all three patients with cytomegalovirus infection needed urgent surgery, none had toxic megacolon. No evidence of cytomegalovirus infection was found in three other patients with toxic megacolon. One patient, who had a rising titre of IgG to cytomegalovirus received treatment with acyclovir which eradicated cytomegalovirus from the colon without altering the course of the colitis.

Journal ArticleDOI
TL;DR: Functional activity of the colonic mucosa, judged by bicarbonate output, was impaired in all subjects with measurable nitrite levels in UC and detection of nitrite in acute colitis suggests impaired oxidation of nitrites to nitrate in the coloni mucosa or impaired luminal reduction of Nitrite to NH4 by bacteria.
Abstract: In the healthy colon, sodium nitrite stimulates mucosal metabolism of short-chain fatty acids and absorption of ions, both functions that are impaired in the mucosa of patients with ulcerative colitis

Journal ArticleDOI
T. E. Van Dyke1, V R Dowell1, S. Offenbacher, W Snyder, T Hersh 
TL;DR: The data suggest that unusual microorganisms colonizing the oral cavity of IBD patients potentially play a role in the pathogenesis of the disease as infectious agents or modifiers of the host response or both.
Abstract: A total of 20 patients with inflammatory bowel disease (IBD) (Crohn's disease, ulcerative colitis) were evaluated with regard to the role of infectious agents and host response. Patients were selected based upon oral manifestations of their disease, 10 with periodontal disease and 10 without. Microbiologic studies of the periodontal flora of IBD-affected patients revealed a unique microflora composed predominantly of small, motile, gram-negative rods, which were most consistent with the genus Wolinella. Further studies of the host response of these patients revealed a serum-mediated defect in neutrophil chemotaxis in all 10 patients with periodontal disease. Neutrophil phagocytosis was normal. In vitro studies of neutrophil function in response to Wolinella extracts and culture supernatants revealed inhibition of neutrophil chemotaxis in a dose-response fashion. The organism was chemokinetic for neutrophils but not chemotactic. The data suggest that unusual microorganisms colonizing the oral cavity of IBD patients potentially play a role in the pathogenesis of the disease as infectious agents or modifiers of the host response or both.

Journal ArticleDOI
01 Dec 1986-Gut
TL;DR: Flow cytometric analysis of cellular DNA content should not replace present morphological methods of assessment of premalignancy in ulcerative colitis, but may be a useful adjunct in the identification of abnormal mucosa.
Abstract: The prevalence of deoxyribonucleic acid (DNA) aneuploidy in 297 samples from 38 patients with ulcerative colitis of varying duration was investigated by flow cytometry. In 12 patients colitis was complicated by the development of colorectal carcinoma: one had three synchronous carcinomas. Only four of 14 carcinomas were DNA aneuploid. Deoxyribonucleic acid aneuploidy occurred focally in the colorectal mucosa in the presence and absence of carcinoma: rates of aneuploidy (67% in cancer patients and 42% in non-cancer patients), were not significantly different (chi 2 = 1.0962, p = 0.295). A higher rate of DNA aneuploidy was found in dysplastic tissues (21%) compared with non-dysplastic tissues (15%), but again these differences did not reach statistical significance (chi 2 = 1.0747, p = 0.299). Deoxyribonucleic acid aneuploidy and dysplastic change occurred more often with increasing duration of ulcerative colitis (p less than 0.001, p less than 0.005 respectively). We conclude that flow cytometric analysis of cellular DNA content should not replace present morphological methods of assessment of premalignancy in ulcerative colitis, but may be a useful adjunct in the identification of abnormal mucosa.

Journal Article
TL;DR: In this article, patients with inflammatory bowel disease diagnosed in the greater Cape Town area between the years 1980 and 1984 inclusive were studied to establish the incidence and presenting features of these diseases, and case details were obtained from the records of the Groote Schuur Hospital group and Tygerberg Hospital as well as from questionnaires completed by 97% of 731 medical practitioners.
Abstract: Patients with inflammatory bowel disease diagnosed in the greater Cape Town area between the years 1980 and 1984 inclusive were studied to establish the incidence and presenting features of these diseases. Case details were obtained from the records of the Groote Schuur Hospital group and Tygerberg Hospital as well as from questionnaires completed by 97% of 731 medical practitioners in the area. There were 134 patients with Crohn's disease, 197 with ulcerative colitis and 16 with indeterminate colitis. The incidences of Crohn's disease in the coloured, white and black population groups were calculated to be 1.8, 2.6 and 0.3/100 000 per year respectively and those for ulcerative colitis 1.9, 5.0 and 0.6/100 000 respectively. Among Jews the incidence was higher for both Crohn's disease (10.4/100 000) and ulcerative colitis (17.0/100 000). Of patients with ulcerative colitis 35% had limited proctitis, 26% proctosigmoiditis, 12% left-sided disease and 27% total colitis. Of patients with Crohn's disease 27% had colonic involvement alone, 37% ileocolitis and 36% small-bowel involvement alone. The incidence of inflammatory bowel disease has increased in the greater Cape Town area over the last 10 years, while the pattern of disease has remained similar to that previously reported for this geographical area.

Journal ArticleDOI
TL;DR: It is suggested that an increased enteroendocrine cell mass may be part of a non‐specific reaction to chronic mucosal injury, and by producing an elevated level of trophic hormones may act as a promoter in the development of neoplasia.
Abstract: Chronic ulcerative colitis may be accompanied by a variety of epithelial changes, including loss of goblet cells, Paneth cell metaplasia, villous metaplasia, and dysplasia. Total colitis is also accompanied by an increased incidence of adenocarcinoma. All these changes are assumed to be secondary to repeated mucosal damage, but how they develop is unknown. Little attention has been paid to the enteroendocrine cell population, despite the postulated role of these cells as producers of trophic hormones. We describe two patients with long-standing ulcerative colitis who developed both adenocarcinoma and carcinoid tumours. In both, there were increased numbers of enteroendocrine cells in the uninvolved colonic mucosa. We suggest that an increased enteroendocrine cell mass may be part of a non-specific reaction to chronic mucosal injury, and by producing an elevated level of trophic hormones may act as a promoter in the development of neoplasia.

Journal ArticleDOI
TL;DR: By the time clinical activity became severe, patients in all disease categories manifested similarly high ESRs, with the exception of ulcerative proctitis in which the ESR remained low in the single patient tested.
Abstract: To assess the reliability of the erythrocytic sedimentation rate (ESR) as a measure of clinical activity in inflammatory bowel disease, we analyzed the correlations of ESR with a global assessment of clinical activity in 77 patients with varying extents of Crohn's disease and ulcerative colitis. Analysis of all 141 ESR determinations in all 77 patients showed a highly significant correlation between mean ESR and clinical activity score (r = 0.54, p less than 0.001). Analysis of 133 ESR determinations in these 77 patients when their disease activity was either mild, moderate, or severe showed some significant differences among certain disease categories. The highest mean ESRs were in patients with the most extensive colon involvement (Crohn's colitis 40.7 +/- 3.3, universal ulcerative colitis 31.0 +/- 3.9), whereas the lowest mean ESRs were in patients with the most limited disease (ulcerative proctitis and proctosigmoiditis 19.2 +/- 2.1). The rate of increase in ESR with progressively increasing clinical activity from mild to moderate was the same in all disease categories, with the exception of Crohn's disease limited to the small bowel (ileitis or jejunoileitis), in which the ESR was relatively unchanged in a small sample of patients. By the time clinical activity became severe, however, patients in all disease categories manifested similarly high ESRs, with the exception of ulcerative proctitis in which the ESR remained low in the single patient tested.(ABSTRACT TRUNCATED AT 250 WORDS)