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Cyclosporine-Induced Gingival Overgrowth in New Zealand White Rabbits (Oryctolagus cuniculus)

机译:环孢素诱导的新西兰白兔牙龈过度生长(Oryctolagus cuniculus)

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AhighincidenceofgingivalovergrowthoccurredinagroupofNewZealandWhiterabbitsreceivingdailycyclosporine(15mg/kgIM)whileonaretinoblastomastudy.Overthecourseof2mo,rabbitspresentedwithclinicalsignsofptyalism(4of18rabbits),inappetence(3of18),orboth(3of18);facialdermatitisanderythemaoccurredsecondarytoptyalism.Reducingthedoseofcyclosporineto10mg/kgledtocompleteresolutionofclinicalsignsinallbut2rabbits,whichthenreceivedazithromycin(62.5mgPOoncedailyfor7d),acommontreatmentforcyclosporine-inducedgingivalovergrowthinotherspecies.Afterdosereductionandazithromycintreatment,clinicalsignsresolvedanddidnotreoccurfortheremainderofthestudy.Fourteenrabbitswerenecropsiedattheendofthestudy,andgingivalwidthwasmeasured.Althoughsomerabbitswereclinicallynormal,thegingivainallrabbitswasgrosslythickened.Rabbitsoncyclosporinehadmolargingivathatwassignificantlythicker(4.8mm)thancontrols(2.5mm)nottreatedwithcyclosporine.Histologicanalysisofthegingivarevealedmildtomoderategingivalepithelialhyperplasia,hyperkeratosis,andmildinflammation.Gingivalovergrowthisaknownsideeffectofcyclosporineadministrationinotherspeciesbut,toourknowledge,thisreportisthefirstdescriptionoftheconditioninrabbits.Becauserabbitsfrequentlyareusedinstudiesthatinvolvesystemiccyclosporineadministration,cliniciansareadvisedtoincludethispossibilityintheirdifferentiallistforcasesinvolvinghypersalivation,facialdermatitis,orinappetenceinrabbits.
机译:AhighincidenceofgingivalovergrowthoccurredinagroupofNewZealandWhiterabbitsreceivingdailycyclosporine(15毫克/ kgIM)whileonaretinoblastomastudy.Overthecourseof2mo,rabbitspresentedwithclinicalsignsofptyalism(4of18rabbits),食欲不振(3of18),orboth(3of18); facialdermatitisanderythemaoccurredsecondarytoptyalism.Reducingthedoseofcyclosporineto10mg / kgledtocompleteresolutionofclinicalsignsinallbut2rabbits,whichthenreceivedazithromycin(62.5mgPOoncedailyfor7d),acommontreatmentforcyclosporine-inducedgingivalovergrowthinotherspecies.Afterdosereductionandazithromycintreatment,clinicalsignsresolvedanddidnotreoccurfortheremainderofthestudy.Fourteenrabbitswerenecropsiedattheendofthestudy,andgingivalwidthwasmeasured.Althoughsomerabbitswereclinicallynormal兔子的环孢菌素粗大地厚了(4.8毫米),比未用环孢菌素处理的对照(2.5毫米)大了。牙龈增生在另一种物种上已广为人知,这是环孢菌素管理的另一种副作用,但据我们所知,本报告是对这种情况的首次描述。由于阿拉伯人经常使用这种研究方法,涉及系统性环孢菌素的治疗,因此在临床上,研究人员认为这种情况可能会导致这种情况。

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