Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 7

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych:  enteropathogen
help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
1

Osmoregulation - dependent expression of Yersinia enterocolitica virulence factors

100%
Brzostek K., Stencel I., Hrebenda J.
Acta Microbiologica Polonica
|
1999
|
tom 48
|
nr 1
2
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Modern aspects on Shigella pathogenecity and vaccine development - a review

86%
Pal P.
International Letters of Natural Sciences
|
2014
|
tom 12
|
nr 1
Shigella species are intracytosolic Gram-negative invasive enteropathogenic bacteria, causing the rupture, invasion and inflammatory destruction of the human colonic epithelium. They utilize the host cytoskeletal components to form propulsive actin tails. The so-called invasive phenotype of Shigella is linked to expression of a type III secretory system (TTSS) injecting effector proteins into the epithelial cell membrane and cytoplasm, thereby inducing local but massive changes in the cell cytoskeleton that lead to bacterial internalization into non-phagocytic intestinal epithelial cells. The molecular and cellular bases of this invasive phenotype essentially encompass crossing of the epithelial lining, apoptotic killing of macrophages, entry into epithelial cells, and escape into the cytoplasm, followed by cell-to-cell spread. Intracellular colonization is likely to protect the micro-organisms from killing by humoral and cellular effectors of the innate immune response. Concurrently, the capacity of Shigella to reprogram invaded epithelial cells to produce proinflammatory mediators plays a major role in the strong inflammatory profile of the disease. This profile is likely to impact on the nature and quality of the adaptive response, which is dominated by humoral protection at the mucosal level. In recent years, a large amount of information has been generated regarding the host, pathogen and environmental factors that impact the pathogenesis of shigellosis at the cellular and molecular level. This review summarizes what is currently known about Shigella, detailing those factors that contribute to pathogenesis and examining the current progress in the development of a vaccine.
3
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Ribotyping as a molecular biological technique for studying diversity in Shigella isolates - a review

72%
Pal P.
International Letters of Natural Sciences
|
2014
|
tom 14
Diarrhoea in developing countries is caused by an increasingly long list of bacterial, viral, and parasitic pathogens with rotavirus, Enterotoxigenic Escherichia coli, Campylobacter, Shigella, and Salmonella heading the list. Using methods to detect most of the known enteropathogens, one or more enteropathogen(s) is isolated in two-thirds of diarrhoeal illnesses in the developing world. Deoxyribonucleic acid probes have proved very useful in detecting pathogens such as enterotoxigenic (ETEC), enteroinvasive (EIEC), enteropathogenic E. coli (EPEC), and Shigella but have not yet proved to be particularly rapid or less expensive. Molecular biology has proved useful in epidemiological studies as a means of strain identification and detection of genome diversity. Since the introduction of ribonucleic acid gene restriction patterns as taxonomic tools in 1986, ribotyping has become an established method for systematics, epidemiological, ecological population and genome diversity studies of microorganisms including Shigella. The technological development culminated in the automation of ribotyping which allowed for high-throughput applications. PCR ribotyping has proved being a highly discriminatory, flexible, robust and cost-efficient routine technique which makes inter-laboratory comparison and build of ribotype databases possible, too. The aim of the present review is to determine the present status of ribotyping technique in detecting the diversity in Shigella isolates.
4

Effect of some herbicides on the survival of bacteria indicating sanitary conditions and of enteropathogens in lake water. The influence of Afalon

72%
Niewolak S., Komar M.
Natural Sciences
|
2001
|
tom 08
101-110
5

SDS-PAGE heat-shock protein profiles of environmental Aeromonas strains

72%
Osman K. M., Amin Z. M. S., Aly M. A. K., Hassan H., Soliman W. S.
Polish Journal of Microbiology
|
2011
|
tom 60
|
nr 2
Aeromonas microorganisms normally grow at temperatures between 5°C and 45°C and therefore should have high thermotolerance. Thus it was of interest to find out whether A. hydrophila, A. caviae and A. veronii biovar sobria serovars respond to abrupt temperature changes with a heat shock-like response. To this end the present study was undertaken to determine whether Aeromonas species exhibits a heat shock response to different temperatures and time factors. The response of Aeromonas serovars to 24 h and 48 h of thermal stress at 25°C, 42°C and 50°C involved the synthesis of 12–18 heat shock proteins (HSPs) bands with molecular weights ranging between 83.5–103.9 kDa in the high HSP molecular mass and 14.5–12.0 as low molecular mass HSP. Electrophoretic analysis of the HSPs showed that the serovars do not cluster very tightly and also that they are distinct from each other.
6

Effect of some herbicides on the survival of bacteria indicating sanitary conditions and of enteropathogens in lake water. II. The influence of Aresin

72%
Niewolak S., Komar M.
Natural Sciences
|
2001
|
tom 09
7

Effect of some herbicides on the survival of bacteria indicating the sanitary conditions and of enteropathogens in lake water. III. The influence of pielik

58%
Niewolak S., Komar M.
Polish Journal of Natural Sciences
|
2002
|
tom 10
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.