Abstract:
:Colonization of the genital tract of female mice, mainly BALB/c, by Mycoplasma genitalium, M. pneumoniae and M. pulmonis was enhanced by pretreatment of the mice with progesterone. M. fermentans, M. hominis and M. salivarium, and three serotypes and two untyped strains of Ureaplasma urealyticum colonized under the influence of oestradiol but not progesterone. Mycoplasmas dependent on progesterone were glucose-metabolizing, with strong haemadsorptive and other attachment properties, and possessed a terminal structure. Mycoplasmas dependent on oestradiol were arginine or arginine/glucose metabolizing. Ureaplasmas also required oestradiol. The oestradiol-requiring group appeared to be less cytadsorptive and devoid of a morphological terminal structure. Mycoplasmas that had had multiple passes in media were less able to colonize. This may be one, but not the only, reason for the failure of seven mycoplasmas to colonize under the influence of either hormone. The observations suggest the existence of a receptor mechanism for colonization, progesterone-requiring mycoplasmas being exposed to, and needing, genital tract cells different from those exposed to oestradiol-requiring mycoplasmas.
journal_name
Int J Exp Patholjournal_title
International journal of experimental pathologyauthors
Furr PM,Taylor-Robinson Dsubject
Has Abstractpub_date
1993-02-01 00:00:00pages
97-101issue
1eissn
0959-9673issn
1365-2613journal_volume
74pub_type
杂志文章abstract::The interradicular region of primary molars is permeated by many foramina, channels and accessories that connect the pulp cavity with the periapical tissues anatomically. Thus, pulp decomposition products or drugs used in endodontic treatment can trigger inflammatory reactions. The aim of this study was to evaluate th...
journal_title:International journal of experimental pathology
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journal_title:International journal of experimental pathology
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journal_title:International journal of experimental pathology
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journal_title:International journal of experimental pathology
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journal_title:International journal of experimental pathology
pub_type: 杂志文章,评审
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journal_title:International journal of experimental pathology
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journal_title:International journal of experimental pathology
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journal_title:International journal of experimental pathology
pub_type: 杂志文章,评审
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journal_title:International journal of experimental pathology
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journal_title:International journal of experimental pathology
pub_type: 杂志文章,评审
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journal_title:International journal of experimental pathology
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journal_title:International journal of experimental pathology
pub_type: 杂志文章
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journal_title:International journal of experimental pathology
pub_type: 杂志文章
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journal_title:International journal of experimental pathology
pub_type: 杂志文章
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更新日期:1991-04-01 00:00:00
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journal_title:International journal of experimental pathology
pub_type: 杂志文章
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journal_title:International journal of experimental pathology
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journal_title:International journal of experimental pathology
pub_type: 杂志文章,评审
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更新日期:2007-08-01 00:00:00
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pub_type: 杂志文章,评审
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journal_title:International journal of experimental pathology
pub_type: 杂志文章
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journal_title:International journal of experimental pathology
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journal_title:International journal of experimental pathology
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journal_title:International journal of experimental pathology
pub_type: 杂志文章,评审
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