title: Effect of partial bladder outlet obstruction and reversal on rabbit bladder physiology and biochemistry: duration of recovery period and severity of function.
abstract: OBJECTIVE
  To use a rabbit model of partial bladder outlet obstruction (BOO) to investigate the point at which obstructive bladder dysfunction becomes irreversible.
  
  
  METHODS
  Partial BOO was induced in New Zealand White rabbits. It was then reversed and the rabbits were allowed to recover for 4, 8 or 12 weeks. Both at the time of reversal and at the end of the study, the rabbits were grouped according to bladder decompensation level (mild, intermediate or severe) based on bladder mass (weight).
  
  
  RESULTS
  A strong correlation was observed between the production and distribution of collagen and the reduction of smooth muscle contractile function. We found that only in the bladders that were severely decompensated at the time of reversal did collagen levels not decrease.
  
  
  CONCLUSIONS
  The data show that recovery of function after reversal of partial BOO is directly related primarily to collagen levels at the time of reversal.
authors.affiliation: Albany College of Pharmacy and Health Sciences, Albany, NY, USA.
authors.forename: Marley
authors.initials: M
authors.lastname: Jock
authors.forename: Robert E
authors.initials: RE
authors.lastname: Leggett
authors.forename: Catherine
authors.initials: C
authors.lastname: Schuler
authors.forename: Connor
authors.initials: C
authors.lastname: Callaghan
authors.forename: Robert M
authors.initials: RM
authors.lastname: Levin
mesh_terms: D000818:Animals; D003094:Collagen / Q000032:analysis / Q000378:metabolism; D008297:Male; D009119:Muscle Contraction; D009218:Myosins / Q000032:analysis / Q000378:metabolism; D009929:Organ Size; D011817:Rabbits; D020127:Recovery of Function / Q000502:physiology*; D001743:Urinary Bladder / Q000737:chemistry / Q000502:physiology / Q000503:physiopathology / Q000601:surgery; D001748:Urinary Bladder Neck Obstruction / Q000503:physiopathology* / Q000601:surgery*
chemical_list: D003094:Collagen; D009218:Myosins
keywords: bladder; calpain; collagen; myosin; rabbit