Electron microscopic study of the regeneration in vitro of rat peritoneal mast cells after histamine secretion

1981 ◽  
Vol 216 (3) ◽  
Author(s):  
EllenHolm Nielsen ◽  
Peter Bytzer ◽  
J�rgen Clausen ◽  
Nirmal Chakravarty
Keyword(s):  
Mast Cells ◽  
Microscopic Study ◽  
Electron Microscopic Study ◽  
Electron Microscopic ◽  
Histamine Secretion ◽  
Peritoneal Mast Cells ◽  
Regeneration In Vitro ◽  
Rat Peritoneal Mast Cells

scholarly journals Vaginal Bacterial Flora Activates Rat Peritoneal Mast Cells

2002 ◽  
Vol 15 (3) ◽  
pp. 233-238 ◽  
Author(s):  
E. Brzezińska-Blaszczyk ◽  
M. Wasiela
Keyword(s):  
Mast Cells ◽  
Histamine Release ◽  
Ureaplasma Urealyticum ◽  
Bacterial Flora ◽  
Mycoplasma Hominis ◽  
Bacterial Strains ◽  
Histamine Secretion ◽  
Peritoneal Mast Cells ◽  
Rat Peritoneal Mast Cells

Sixteen strains of physiological and pathological vaginal bacteria were tested for their ability to secrete histamine from rat peritoneal mast cells in vitro. We noticed that Mycoplasma hominis -induced histamine release was very high (up to 53.6%). The stimulation of rat mast cells with Staphylococccus cohnii, Staphylococcus coagulase(-) (two strains), Ureaplasma urealyticum, Peptostreptococcus spp., Bacteroides capillosus, Staphylococcus aureus and Streptococcus agalactiae resulted in lower, but significant histamine secretion (11.2%–17.5%). Other bacterial strains ( Staphylococcus epidermidids, Enterococcus faecalis, Escherichia coli, Actinomyces naeslundii (two strains) and Lactobacillus fermentum (two strains) caused very low (4.2 % – 8.8%) histamine release.

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