Comparative Histopathology of Intestinal Infections

1997 ◽  
pp. 1-19 ◽  
Author(s):  
Harley W. Moon
Keyword(s):  
Intestinal Infections

THE ROLE OF PHAGE THERAPY IN THE FORMATION OF THE INTESTINAL MICROECOSYSTEM

2020 ◽  
pp. 183-191
Author(s):  
Gladkov S.F. ◽  
Perevoshchikova N.K. ◽  
Chernykh N.S. ◽  
Pichugina Yu.S. ◽  
Surkova M.A.
Keyword(s):  
Intestinal Microbiota ◽  
Allergic Diseases ◽  
Evidence Base ◽  
Immunological Tolerance ◽  
Convincing Evidence ◽  
Selective Decontamination ◽  
Genetic Characteristics ◽  
Treatment And Prevention ◽  
Intestinal Infections ◽  
The Individual

The current adverse situation associated with the presence of a pandemic of allergic diseases is due to the lack of a scientifically based concept of treatment and prevention. The increased interest of researchers from different countries in the formation of immunological tolerance by modeling the intestinal microbiota is of high importance. Methods of influence on the microbial communities of the child's intestine should be as delicate as possible, taking into account the individual genetic characteristics of the microecosystem and the possibility of anaphylaxis. Until now, probiotic drugs have been widely used to correct dysbiosis, but data is gradually accumulating that there is no convincing evidence base for their use for the treatment and prevention of atopy. The use of bacteriophages is very relevant and one of the promising, actively studied areas of correction of intestinal biocenosis today, which are an alternative to antibiotic and probiotic medications. Selective decontamination of representatives of opportunistic flora, as the main factor in the implementation of the atopic phenotype, makes it possible to preserve and accelerate the formation of a unique and individual composition of the intestinal microbiota of the child, which can form an immunoregulatory balance. More than a century of experience in the use of bacteriophages indicates the safety of their use. Today, bacteriophages are actively used in various fields of practical medicine − obstetrics-gynecology, perinatology, urology, pediatric otorhinolaryngology, in the treatment of purulent-septic and intestinal infections. In some cases, bacteriophages are very effective against antibiotic-resistant pathogens. The active personalized use of bacteriophages in real clinical practice will make it possible to solve a number of serious, long-standing health problems in the Russian Federation and to win a world priority in this direction.

Etiological structure of acute intestinal infections in patients hospitalized to an infectious hospital

2019 ◽  
Vol 17 (8) ◽  
pp. 109-113
Author(s):  
S. V. Khaliullina ◽  
◽  
V. A. Anokhin ◽  
Z. T. Mukhamerdieva ◽  
G. M. Kurbanova ◽  
...  
Keyword(s):  
Intestinal Infections

Are Viruses and Parasites Linked to Celiac Disease? A Question that Still has no Definite Answer

2019 ◽  
Vol 20 (14) ◽  
pp. 1181-1193 ◽  
Author(s):  
Aref Shariati ◽  
Hamid R. Aslani ◽  
Mohammad R.H. Shayesteh ◽  
Ali Taghipour ◽  
Ahmad Nasser ◽  
...  
Keyword(s):  
Celiac Disease ◽  
Multiple Roles ◽  
Barr Virus ◽  
The People ◽  
Intestinal Infections ◽  
Inflammatory Bowel ◽  
Epstein Barr ◽  
Irritable Bowel ◽  
Related Proteins

Celiac Disease (CD) is a complex autoimmune enteropathy of the small intestine that commonly occurs in genetically predisposed individuals due to intake of gluten and related proteins. Gluten consumption, duration of breast-feeding, various infections, especially frequent intestinal infections, vaccinations and use of antibiotics can be linked to CD. It is predicted that it affects 1% of the global population and its incidence rate is increasing. Most of the people with the HLA-DQ2 or HLADQ8 are at a higher risk of developing this disease. The link between infections and autoimmune diseases has been very much considered in recent years. In several studies, we explained that pathogenic and non-pathogenic microorganisms might have multiple roles in initiation, exacerbation, and development of Irritable Bowel Syndrome (IBS) and Inflammatory Bowel Disease (IBD). In various studies, the relationship between infections caused by viruses, such as Epstein-Barr Virus (EBV), Rotavirus, Hepatitis C (HCV), Hepatitis B virus (HBV), Cytomegalovirus (CMV), and Influenza virus, and parasites including Giardia spp. and Toxoplasma gondii with CD has been raised. However, increasing evidence proposes that some of these microorganisms, especially helminths, can also have protective and even therapeutic roles in the CD process. Therefore, in order to determine the role of microorganisms in the process of this disease, we attempted to summarize the evidence suggesting the role of viral and parasitic agents in pathogenesis of CD.

scholarly journals Avian intestinal ultrastructure changes provide insight into the pathogenesis of enteric diseases and probiotic mode of action

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Shaniko Shini ◽  
R. Claire Aland ◽  
Wayne L. Bryden
Keyword(s):  
Electron Microscopy ◽  
Villous Atrophy ◽  
Adherens Junction ◽  
Necrotic Enteritis ◽  
Intestinal Immunity ◽  
Gut Health ◽  
Ileal Mucosa ◽  
Enteric Diseases ◽  
Transmission Electron ◽  
Intestinal Infections

AbstractEpithelial damage and loss of barrier integrity occur following intestinal infections in humans and animals. Gut health was evaluated by electron microscopy in an avian model that exposed birds to subclinical necrotic enteritis (NE) and fed them a diet supplemented with the probiotic Bacillus amyloliquefaciens strain H57 (H57). Scanning electron microscopy of ileal mucosa revealed significant villus damage, including focal erosions of epithelial cells and villous atrophy, while transmission electron microscopy demonstrated severe enterocyte damage and loss of cellular integrity in NE-exposed birds. In particular, mitochondria were morphologically altered, appearing irregular in shape or swollen, and containing electron-lucent regions of matrix and damaged cristae. Apical junctional complexes between adjacent enterocytes were significantly shorter, and the adherens junction was saccular, suggesting loss of epithelial integrity in NE birds. Segmented filamentous bacteria attached to villi, which play an important role in intestinal immunity, were more numerous in birds exposed to NE. The results suggest that mitochondrial damage may be an important initiator of NE pathogenesis, while H57 maintains epithelium and improves the integrity of intestinal mucosa. Potential actions of H57 are discussed that further define the mechanisms responsible for probiotic bacteria’s role in maintaining gut health.

From Chronic Emergency to Development: An Analysis of the Health of the Urban Poor in Luanda, Angola

1992 ◽  
Vol 22 (2) ◽  
pp. 349-363 ◽  
Author(s):  
Najmi Kanji ◽  
Trudy Harpham
Keyword(s):  
Urban Poor ◽  
Structural Adjustment ◽  
Health Care Systems ◽  
Infant Mortality Rate ◽  
African Countries ◽  
Rapid Urbanization ◽  
Intestinal Infections ◽  
Health Related ◽  
Care Systems ◽  
Sub Saharan

There is a dearth of published literature on health care systems in Angola. Like many sub-Saharan African countries, Angola is experiencing rapid urbanization. The authors provide an analysis of the health status, environmental health conditions, and health-related behavior of the urban poor in Luanda, Angola. Although data are patchy and rarely disaggregated to reveal severe conditions in the shanty towns, a grave picture emerges. An average infant mortality rate of 104/1,000, with malaria and intestinal infections the main causes of death in children under 1 year old, reflects the poor environmental conditions, which are worsening as urbanization continues at a rapid rate. Use of health services is limited; for example, 50 percent of women give birth at home, mainly unassisted, and only 28 percent of children are covered by measles immunization (as validated by card). A discussion of existing health strategies, programs, and their constraints is set in the context of the future possibilities of the ending of the 15-year war and the introduction of structural adjustment policies.

NOD-Like Receptors: Guardians of Intestinal Mucosal Barriers

Physiology ◽  
2015 ◽  
Vol 30 (3) ◽  
pp. 241-250 ◽  
Author(s):  
Anne-Kathrin Claes ◽  
Jun Yu Zhou ◽  
Dana J. Philpott
Keyword(s):  
Inflammatory Bowel Disease ◽  
Pattern Recognition ◽  
Potential Function ◽  
Bowel Disease ◽  
Intestinal Inflammation ◽  
Intestinal Barrier ◽  
Immune Defense ◽  
Intestinal Infections ◽  
Gut Homeostasis ◽  
Inflammatory Bowel

The NOD-like receptors (NLRs) are cytosolic pattern-recognition receptors, which are critically involved in mucosal immune defense. The association of the NLR, NOD2, with inflammatory bowel disease first pointed to the NLRs potential function as guardians of the intestinal barrier. Since then, several studies have emphasized the importance of NLRs in maintaining gut homeostasis and intestinal infections, and in shaping the microbiota. In this review, we will highlight the function of NLRs in intestinal inflammation.

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