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PubMed1988

Selective alteration of brush-border hydrolases in intestinal diseases in childhood.

1. Biochemical estimates of lactase, sucrase and maltase activities, carried out on intestinal biopsies appearing histologically normal, were compared with those obtained from children suffering from coeliac disease, cow's milk protein intolerance/postenteritis syndrome and the intractable diarrhoea syndrome of infancy. Lactase deficiency in these children was found to be more pronounced than sucrase or maltase deficiencies. 2. Quantitative cytochemical investigations showed characteristic disease-induced changes in the ability of enterocytes to express alpha- and beta-glucosidases, but not alkaline phosphatase activities, during migration along stunted villi. 3. Separate estimates of the time course describing hydrolase development in normal and coeliac tissue showed the initial rate of lactase appearance to be halved in coeliac patients, while that for alpha-glucosidases remained constant and that for alkaline phosphatase increased by a factor of four. Enteroblastic replacement of mature enterocytes cannot provide a general explanation for hydrolase deficiency in diseased intestine.

Adolescent↗
PubMed2006

Roles of syndecan-1, bcl6 and p53 in diagnosis and prognostication of immunoproliferative small intestinal disease.

AIM: To evaluate roles of syndecan-1, bcl6 and p53 in diagnosis and prognostication of immunoproliferative small intestinal disease (IPSID) and to study profiles of kappa (kappa) and lambda (lambda) light chains and IgA heavy chain. METHODS: The study consisted of 11 cases of IPSID and similar number of controls which included 11 of normal intestinal mucosa and 11 of high grade B cell lymphoma of ileum. The parameters analyzed included clinical profiles, biochemical and other laboratory investigations, radiologic and histological findings including immunohistochemistry. RESULTS: All IPSID cases had demonstrable serum IgA heavy chain and heavy mucosal plasma cell infiltration. According to Galian's histological staging, there were 4 patients with stage A and 7 with stage B. kappa and lambda light chains were over-expressed in 7 patients; 1 stage A patient had H pylori-positive active gastritis and eradication of H pylori led to disease remission. Stage A biopsies had higher expression for syndecan-1, while stage B had higher expression for bcl6 and p53. Syndecan-1, kappa and lambda light chains and IgA heavy chain showed inverse relationship with bcl6 and p53. All patients were treated with doxycycline. CHOP regime was added in 5 patients who developed frank lymphoma. Three died of the disease due to extensive organ infiltration. CONCLUSION: Certain immunomarkers like syndecan-1, kappa and lambda light chains and IgA heavy chain could be of much help in identifying early stage IPSID. Stage B IPSID showed higher expression for bcl6 and p53 than stage A IPSID. bcl6 and p53 expressions correlated with a more advanced disease stage and aggressive tumour behavior.

Adult↗
PubMed2006

Publication bias in foodborne outbreaks of infectious intestinal disease and its implications for evidence-based food policy. England and Wales 1992-2003.

Systematic national surveillance of outbreaks of infectious intestinal disease (IID) was introduced in England and Wales in 1992 to provide comprehensive information on causative organisms, sources or vehicles of infection and modes of transmission. We compared information from this system with that published in the peer-reviewed literature between 1 January 1992 and 31 January 2003 to assess the potential effect of publication bias on food-safety policy. During the study period 1763 foodborne outbreaks of IID were reported to national surveillance. Fifty-five were published in the peer-reviewed literature. The peer-reviewed literature overestimated the impacts of milk/milk products, miscellaneous foods (e.g. sandwiches) and desserts and underestimated those of poultry, fish and shellfish, red meat/meat products and eggs/egg products. Without systematic surveillance, knowledge of causative organisms, sources or vehicles of infection and modes of transmission, as gleaned from the peer-reviewed literature, would potentially distort food-safety policy.

Animals↗
PubMed1996

General outbreaks of infectious intestinal disease in England and Wales 1992 to 1994.

Data from the surveillance scheme of general outbreaks of infectious intestinal disease in England and Wales, reported to the PHLS Communicable Disease Surveillance Centre (CDSC), were used to review 1280 of the 1594 outbreaks identified between 1 January 1992 and 31 December 1994 for which a minimum data set was captured. The number of outbreaks reported in each regional health authority ranged from 31 in Mersey to 221 in Yorkshire. The commonest pathogens reported were salmonellas in 32% (412) of outbreaks, small round structured virus (SRSV) in 27% (342), Clostridium perfringens in 7% (90), and Shigella sonnei in 4% (46). The main mode of transmission was described as foodborne in 50% (642), over half of which were caused by salmonellas, and person to person in 39% (496), over half of which were caused by SRSV. Most outbreaks transmitted from person to person occurred in hospitals and in residential institutions for elderly people. Outbreaks lasted from one to 217 days (median five days) and their duration varied with the pathogen. The median attack rate was 37%. Illness was reported in 34,158 people, 751 of whom (2%) were admitted to hospital. There were 55 deaths, 28 of which were associated with salmonella and 12 with SRSV. Most of the outbreaks reported and the associated morbidity and mortality could have been prevented by following standard food hygiene practices, implementing infection control policies, and ensuring that food entering kitchens was of the highest microbiological quality possible.

Clostridium Infections↗
PubMed1971

A study of Escherichia coli strains isolated from pigs with gastro-intestinal disease.

When 200 Escherichia coli isolated from pigs with gastro-intestinal disease were examined, 82.0% of them were found to be enteropathogenic by the ligated intestine test in pigs. Among the 18.0% which were nonenteropathogenic, 12.0% were obtained from pigs considered likely to be suffering from colibacillosis and 6.0% were from pigs for which there was a satisfactory diagnosis. Eighty-seven percent of the enteropathogens belonged to the serogroups O8:K87;88ac, O116:K"V17";88ac, O147:K89;88ac, O138:K81 and O45:K"E65";88ac. One O4 isolate and two O98 isolates were enteropathogenic, although members of these O groups have not been recognized enteropathogenic types. The majority (153) of the enteropathogens were of the types which are well characterized and which induce fluid accumulation in ligated segments of the intestine of young and old pigs and were referred to as class 1 enteropathogens. A small number (11)were able to cause fluid accumulation in ligated segments of young, but not of older pigs and were referred to as class 2 enteropathogens. Enterotoxin production was demonstrated for strains of all the serogroups of class 1 enteropathogens detected, and transfer of the enterotoxin plasmid was carried out for strains of O groups 4, 45, 98, 116 and 147.

Age Factors↗
PubMed1990

[Etiologic interpretation of acute intestinal diseases].

The authors suggest a scheme for the detection of the etiologic factor of an acute intestinal condition; this scheme permits detecting dysbiotic changes in the microbiocenosis, finding pathogenic or opportunistic microorganisms in fecal culture. Classification of acute intestinal diseases into those induced by pathogenic and opportunistic microorganisms, as well as those resultant from acute imbalance of the normal ratio of intestinal bacteria helps carry out differential therapy of patients. The results of such bacteriologic studies may be useful for epidemiologists.

Acute Disease↗
PubMed2002

Foodborne infectious risks: do we need a wide system of data collection and survey? The lessons learned from the study of infectious intestinal disease in England.

In 2000, the United Kingdom Government's Food Standards Agency published "A report of the study of infectious intestinal disease in England". This report was the result of over a decade's endeavour and cost well in excess of 2 million pound sterling (approximately 3.3 million euros). The study originated in 1989. In response to national epidemics of foodborne infection with Salmonella enteritidis phage type 4 and Listeria monocytogenes, the Government set up the Committee on the Microbiological Safety of Food (the Richmond Committee). This committee wished to know the actual level of clinical disease in the population giving rise to the laboratory reports of gastro-intestinal pathogens in national surveillance data and recommended studies to achieve this objective. In addition, successors to the to Richmond Committee decided that it would be of value to collect information from both cases and controls, including documenting exposure to biologically plausible risk factors so that differences between the ill and the well could be identified. Enquiries were also made about the clinical course of disease, so that long term sequelae and socio-economic costs could be estimated. A full description of this enormous study is beyond the scope of this paper, which defends the personal view that resources might have been better spent on a less ambitious enquiry.

Case-Control Studies↗
PubMedDate not supplied

Relationship of sex, age, and concurrent intestinal disease to necrotic enteritis in turkeys.

A retrospective case-control study of necrotic enteritis in turkeys was done. Male flocks were involved in a significantly greater proportion of necrotic enteritis cases compared with control cases. Necrotic enteritis cases occurred most frequently between 6 and 11 weeks of age. Within this age range, the probability of a necrotic enteritis case having a concurrent intestinal disease diagnosis was significantly higher than the probability in control cases. Coccidiosis was the most frequently diagnosed concurrent intestinal disease with necrotic enteritis, followed by clinical hemorrhagic enteritis and ascaridiasis.

Age Factors↗
PubMed1999

Tapeworms as a cause of intestinal disease in horses.

Until recently, the equine tapeworm Anoplocephala perfoliata was difficult to diagnose and considered to be of questionable pathogenicity. Here, Chris Proudman and Sandy Trees describe recent advances in the immunodiagnosis of this parasite that have facilitated epidemiological studies. These studies suggest that A. perfoliata may be an important cause of intestinal disease in the horse and demonstrate a dose-response relationship between infection intensity and risk of disease. If tapeworm infection is a risk factor for ileocaecal colic, the identification and treatment of infected individuals would be a rational approach to disease prevention.

Animals↗
PubMed1978

"Mediterranean abdominal lymphoma" or immunoproliferative small intestinal disease. Part II: pathological aspects.

The pathology of 25 cases of Mediterranean abdominal lymphoma, better designated as immunoproliferative small intestinal disease (IPSID), are reported from the American University of Beirut Hospital. The series includes nine cases with documented alpha heavy chain disease (alpha-HCD). The disease is characterized by the presence of a diffuse and compact bandlike lymphoplasmacytic infiltration of the proximal small intestinal mucosa. The presence of a concomitant malignant lymphoma in the intestine and/or mesenteric lymph nodes, and of alpha-heavy protein in the serum is commonly encountered. Two histopathologic variants of IPSID are present. The first is characterized by the diffuse infiltration of the mucosa, at sites away from tumoral masses, by either pure plasmacytic infiltration, or mixed lymphoplasmacytic infiltration. This variety is associated with the immunoblastic sarcoma type of malignant lymphoma, and with alpha chain disease (alpha-HCD). The second variant is characterized by a diffuse follicular lymphoid hyperplasia pattern in the small intestinal mucosa. The associated malignant lymphoma is diffuse and undifferentiated often having a starry-sky pattern. This variety is not associated with alpha-HCD. Both histologic variants share the same clinical antecedents. In five patients, mesenteric lymph nodes harbored immunoblastic sarcoma while the intestinal mucosae of the same patients were involved with a benign appearing lymphoplasmacytic infiltration. This finding stresses the need for staging laparatomy. Three patients, with alpha-HCD, had peripheral lymph node involvement with immunoblastic sarcoma. The disease apparently evolves in two stages: an immunoproliferative phase, probably reversible, and a later development of malignant lymphoma. The term immunoproliferative small intestinal disease accurately describes the nature of the entity.

Female↗
PubMed2001

General outbreaks of infectious intestinal disease linked with red meat, England and Wales, 1992-1999.

Between 1992 and 1999, 1,426 foodborne general outbreaks of infectious intestinal disease (IID) were reported to the Public Health Laboratory Service (PHLS) Communicable Disease Surveillance Centre (CDSC). Sixteen percent were linked with the consumption of red meat. Over 5,000 people were affected, with 186 hospital admissions and nine deaths. Beef (34%) and pig meat (32%) were the most frequently implicated meat types, with lamb implicated in 11% of outbreaks. The organisms most frequently reported were Clostridium perfringens (43.4%) and salmonellas (34.3%). During the summer, outbreaks were mainly of Salmonella spp. and attributed to the consumption of pig meat. In December, outbreaks of C. perfringens linked with beef predominated. Most outbreaks occurred as a result of food cooked on commercial catering premises (46%). The highlight of this surveillance period is a fall in the number of outbreaks linked with foods containing red meat. This corresponds with a steady decline in red meat consumption over the last two decades, as well as a transient though marked decline in the purchase and consumption of red meat in the UK during the BSE crisis in the early to mid 1990s. As cited in the Pennington Report, further reducing the morbidity and mortality from red meat outbreaks means targeting meat production at various points along the food chain from abattoir and butchering, to cooking and holding of cooked food, especially on commercial catering premises.

Bacterial Infections↗
PubMed2002

Surveillance of foodborne outbreaks of infectious intestinal disease in England and Wales 1992-1999: contributing to evidence-based food policy?

Between 1992 and 1999, a total of 1426 general outbreaks of infectious intestinal disease reported to the Public Health Laboratory Service (PHLS) Communicable Disease Surveillance Centre (CDSC) were described as foodborne. Where the evidence base to support the conclusions drawn was provided (66.3% of outbreaks) a combination of microbiological and analytical evidence was reported in 4% of outbreaks (60/1426); microbiological evidence alone in 10% of outbreaks (149/1426); analytical evidence alone in 23% of outbreaks (322/1426); microbiological evidence in combination with descriptive epidemiology in 3% of outbreaks (46/1426) and descriptive epidemiology alone in 26% of outbreaks (365/1426). Information supplied to CDSC by local investigators appears to be of varying quality and depth and may be influenced by the individual characteristics of outbreaks such as size and duration, outbreak setting, causative organism, vehicles of infection and time of year. These findings have implications for the use of these surveillance data in developing evidence-based food policy.

Communicable Diseases↗
PubMed1976

[Bacteria of the citrobacter genus as one of the possible indeices of dysbacteriosis in intestinal diseases].

A study of the incidence of detection of bacteria of the Citrobacter genus in chronic intestinal diseases with the clinical and bacteriological manifestations of dysbacteriosis indicated that the mentioned conditioned pathogenic bacteria were revealed with the same frequency as bacteria of the Proteus genus which served as the commonly accepted index of intestinal dysbacteriosis. Comparative analysis of the intestinal microbial flora of the patients led to a supposition that bacteria of the Citrobacter genus could be found not only in the associations with other microbes, but also as a definite individual group of bacteria during the infectious disease and antibiotic therapy in case of disturbance of normal intestinal biocenosis; this could occur even in the absence in these patients of the known bacteriological indices of dysbacteriosis, thus becoming one of its manifestations.

Anti-Bacterial Agents↗