Interference with cellular incorporation of substrates into Staphylococcus aureus by hormones.

  title={Interference with cellular incorporation of substrates into Staphylococcus aureus by hormones.},
  author={Thomas J. Fitzgerald and William W. Yotis},
  journal={Journal of medical microbiology},
  volume={4 1},
Summary Hormonal effects on substrate incorporation into various cellular fractions such as protein, nucleic acid and mucopeptide, have been investigated to elucidate the reported steroidal retardation of staphylococcal growth. Bacteria suspended in synthetic medium were exposed to 14C-compounds in the presence and absence of hormones. Progesterone at 40 μg per ml significantly altered the entrance of glutamic acid, lysine and alanine into all cellular fractions of Staphylococcus aureus. With… 
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Antibiotic- and hormonally induced alterations inStaphylococcus aureus

The ability of penicillin to induce permeability changes in Staphylococcus aureus was markedly enhanced by selected gonadal steroids and an extracellular site of hormonal action located on the cell envelope is suggested.

Mechanism of action of the gonadal steroids producing diminution of growth of Staphylococcus aureus.

It is suggested that the hormones interfere with the integrated functioning of membrane-associated processes with respect to decreasing growth of Staphylococcus aureus in vitro.

Cytokinesis of Candida albicans by diethylstilbestrol.

In vitro effects of the synthetic oestrogenic hormone diethylstilbestrol (DS) and diethylonbestrol dipropionate (DSP) on Candida albicans have been assessed and respiration, the uptake, and incorporation of nutrients by C.Albicans was not influenced when the cells were ‘resting’.

Role of estrogen in controlling the genital microflora of female rats

Findings suggested that the cyclic variation in bacterial content of rat vaginae could be explained primarily as the effect of the secretory pattern of ovarian estrogen.

Effect of Progesterone on Neisseria gonorrhoeae

The effects of progesterone on the growth of pathogenic and nonpathogenic species of Neisseria were studied in liquid cultures. Only strains of N. gonorrhoeae and N. meningitidis were highly

Repellent Activity of Estrogenic Compounds toward Zoospores of the Phytopathogenic Fungus Aphanomyces cochlioides

  • M. IslamS. Tahara
  • Biology, Chemistry
    Zeitschrift fur Naturforschung. C, Journal of biosciences
  • 2001
Screening chemical compounds found that a xenoestrogen, bisphenol A, showed potent repellent activity against the zoospores of A phanomyces cochlioides, the first report of repellents activity of estrogenic compounds toward trivial fungal Zoospores.

Hormonally-Induced Permeability Changes in Staphylococcus Aureus

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