employee
Russian Federation
employee
Russian Federation
graduate student
Russian Federation
Opisany patomorfologicheskie osobennosti funkcionirovaniya parazitarnoy sistemy pri vol'fartioze ovec, kak pokazatel' patogeneticheskoy suschnosti vozdeystviya parazitiruyuschih lichinok vol'fartovoy muhi na organizm hozyai- na. Ustanovili, chto funkcionirovanie parazitarnoy sistemy pri vol'fartioze harakterizuetsya obligatnymi moleku- lyarno-biohimicheskimi svyazyami, kotorye deystvuyut tol'ko pri sohranenii parazitami i ih hozyaevami svoystv zhivyh organizmov vo vremennom intervale suschestvovaniya parazitarnoy sistemy. Struktura prostranstvennyh otnosheniy vozbuditeley vol'fartioza s hozyainom harakterizuetsya larval'nym parazitizmom. Lichinki vol'fartovoy muhi ne yav- lyayutsya istinnymi ektoparazitami vsledstvie ih nesposobnosti narusheniya celostnosti kozhnogo pokrova hozyaina i nevozmozhnosti parazitirovat' na nepovrezhdennoy kozhe. Oni ne yavlyayutsya endoparazitami i otnosyatsya k razryadu po- lupogruzhennyh v tkani hozyaina. Takoy sposob parazitirovaniya nazyvayut perehodnym, on obuslovlen otnositel'noy evolyucionnoy molodost'yu dvukrylyh nasekomyh i sravnitel'no nedavnim ih perehodom k parazitizmu. Ontogenez lar- val'nyh faz W. magnifica prodolzhaetsya 5–6 sutok. Parazity pitayutsya tkanyami i krov'yu hozyaina. V processe razvitiya miaza, lichinki sekretiruyut enzimy slyunnyh zhelez v prilegayuschie tkani organizma hozyaina, gde realizuetsya ih gidro- liticheskiy effekt. Gistomorfologicheskie izmeneniya pri vol'fartioze demonstriruyutsya: formirovaniem obshirnogo destruktivnogo processa, otekom prilegayuschih tkaney; dezorganizaciey stromy i strukturnyh elementov; vyrazhenny- mi cirkulyatornymi rasstroystvami, polnokroviem, formirovaniem eritrocitarnyh stazov, agregaciey eritrocitov; perivaskulyarnymi krovoizliyaniyami, gidropicheskoy distrofiey kletochnyh elementov, nekrozom tkaney; polimorfno- yadernoy leykocitarnoy infil'traciey porazhennyh organov i tkaney; nalichiem krovenosnyh sosudov v granulyacion- noy tkani, otkryvayuschihsya v prosvet ranevogo defekta. Razvitie lichinok W. magnifica vyzyvaet v organizme hozyaina znachitel'nye (ili neobratimye, pri vysokom urovne intensivnosti invazii) izmeneniya gomeostaza. Prognosticheskoe znachenie imeyut pokazateli intensivnosti invazii, ploschad' i lokalizaciya miaza.
vol'fartioz, parazitiruyuschie lichinki, ovcy, patomorfologicheskie izmeneniya, organizm hozyaina.
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