Nomenclature Abstract for Treponema hyodysenteriae Harris et al. 1972 (Approved Lists 1980).

2003 ◽  
Author(s):  
Charles Thomas Parker ◽  
Nicole Danielle Osier ◽  
George M Garrity
Keyword(s):  
Treponema Hyodysenteriae

scholarly journals Serotypes of beta-hemolytic Treponema hyodysenteriae.

1979 ◽  
Vol 25 (3) ◽  
pp. 792-796 ◽  
Author(s):  
D H Baum ◽  
L A Joens
Keyword(s):  
Treponema Hyodysenteriae

scholarly journals Studies on the Pathogenesis of Swine Dysentery

1979 ◽  
Vol 16 (4) ◽  
pp. 450-465 ◽  
Author(s):  
B. P. Wilcock ◽  
H. J. Olander
Keyword(s):  
Volatile Fatty Acids ◽  
Cell Hyperplasia ◽  
Swine Dysentery ◽  
India Ink ◽  
Perfusion Studies ◽  
Colony Forming Units ◽  
Pure Cultures ◽  
Treponema Hyodysenteriae ◽  
Colonic Secretion ◽  
Mucosal Necrosis

Swine dysentery was induced in pigs and in ligated colonic segments by inoculation of pure cultures of, or colonic contents containing, Treponema hyodysenteriae. The mildest changes, best seen in ligated segments 48 or 72 hours after inoculation, were congestion and leucocytic margination in mucosal capillaries and depletion of mucigen from goblet cells lining the base of the crypts of Lieberkühn. Superficial mucosal necrosis and crypt cell hyperplasia were later changes. Perfusion studies with India ink did not demonstrate occlusive mucosal ischemia in acute swine dysentery. Mucosa with lesions of swine dysentery contained at least 105 colony forming units of T. hyodysenteriae per gram. Mucosa without lesions had 105 or fewer T. hyodysenteriae per gram. Segments with acute swine dysentery were distended with clear mucoid fluid with electrolyte composition indicative of net colonic secretion. No increase in the concentration of volatile fatty acids was detected in content from intact colons or colonic segments with lesions of acute swine dysentery.

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