منابع مشابه
Coccoid forms of Helicobacter pylori.
To the Editor-Eaton et al. [1] recently described experiments with coccoid Helicobacter pylori in gnotobiotic piglets. This interesting study examined the colonization and the reversion from coccoid to bacillary H pylori within 2 weeks of inoculation. Piglets colonized with bacillary H pylori had more severe gastritis 2 weeks after inoculation than did those sacrificed 1 week after inoculation....
متن کاملCoccoid forms of Helicobacter pylori are the morphologic manifestation of cell death.
Helicobacter pylori can transform from its normal helical bacillary morphology to a coccoid morphology. Since this coccoid form cannot be cultured in vitro, it has been speculated that it is a dormant form potentially involved in the transmission of H. pylori and in a patient's relapse after antibiotic therapy. In this study we determined the effects of aging, temperature, aerobiosis, starvatio...
متن کاملImmunoglobulin G antibody response to infection with coccoid forms of Helicobacter pylori.
An increasing number of studies support a potential role for coccoid forms in Helicobacter pylori infection. Evidence for this was obtained through scanning microscopy, genetic analysis for virulence traits, examination of the presence and activity of key enzymes, and other methods. We studied the serum immunoglobulin G responses to coccoid H. pylori forms by enzyme-linked immunosorbent assay (...
متن کاملComparison of the nucleic acids of helical and coccoid forms of Helicobacter pylori.
The nucleic acids of the helical and coccoid forms of Helicobacter pylori were studied to determine if the coccoid forms are "viable (capable of growing) but nonculturable." Using a reference strain (NCTC 11638) and five clinical strains, the nucleic acid contents, DNA integrity, and results of PCR and reverse transcription-PCR (RT-PCR) were compared for helical H. pylori and coccoid forms indu...
متن کاملDevelopment of two PCR-based techniques for detecting helical and coccoid forms of Helicobacter pylori.
The primary mode of transmission of Helicobacter pylori, a human pathogen carried by more than half the population worldwide, is still unresolved. Some epidemiological data suggest water as a possible transmission route. H. pylori in the environment transforms into a nonculturable, coccoid form, which frequently results in the failure to detect this bacterium in environmental samples by convent...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Infectious Diseases
سال: 1996
ISSN: 0022-1899,1537-6613
DOI: 10.1093/infdis/173.5.1288