41 research outputs found
Ceratoconjuntivite por Encephalitozoon hellem em periquitos agapornis (Agapornis spp.) no Brasil: relato de caso
Relata-se um caso de ceratoconjuntivite causada por Encephalitozoon hellem em agapornis (Agapornis spp.) adultos, provenientes de um criatório comercial. Cinco animais apresentaram sinais clínicos de ceratoconjuntivite, blefaroespasmo e blefaroedema bilateral, com presença de secreção seropurulenta. Amostras fecais foram colhidas e foi realizado exame coproparasitológico, com resultado negativo. Dois animais foram necropsiados, sendo detectados, em impressões de raspado de conjuntiva ocular, esporos e outros estádios evolutivos de Microsporidium. A confirmação do diagnóstico foi feita pela reação em cadeia de polimerase e sequenciamento de fragmentos amplificados, com utilização de primers específicos para o gene da subunidade 18S do rRNA de E. hellem. A análise dos fragmentos amplificados demonstrou 100% de similaridade com outras sequências de E. hellem publicadas no GenBank. Este é primeiro relato de infecção por E. hellem em aves no Brasil
Cryptosporidium sp. em intestinos, bursa de Fabricius e traquéia de frangos (Gallus gallus sp)
Human cryptosporidiosis: detection of specific antibodies in the serum by an indirect immunofluorescence
Sporogenesis of the myxosporean Kudoa paniformis Kabata & Whitaker, 1981 infecting the muscle of the Pacific whiting, Merluccius productus (Ayres)
Host-parasite interaction of the myxosporeans Kudoa paniformis Kabata & Whitaker, 1981 and Kudoa thyrsites (Gilchrist, 1924) in the muscle of Pacific whiting, Merluccius productus (Ayres): an ultrastructural study
Interlamellar Henneguya infestation in adult channel catfish Ictalums punctatus (Rafinesque)
Ultrastructural morphology of <i>Pneumocystis carinii</i> exposed to (β-1-3 glucan synthase inhibitors LY 302146 and LY 307853
Pneumocystis carinii (PC) is an extracellular pathogen which frequently causes pneumonia in immunocompromised patients and is a significant cause of morbidity and mortality in patients with acquired immunodeficiency syndrome (AIDS). Trimethoprim plus sulphamethoxazole and pentamidine are the most often prescribed treatments for PC induced pneumonia but these drugs often cause severe side-effects in individuals with AIDS and are less effective if relapse occurs. For these reasons the search for more effective compounds continues.The cell walls of PC cysts are rich in glucosyl/mannosyl/and N-acetyl-D-glucosamine residues and are digested by treatment with Zymolyase a β-1-3 glucanase. Therefore, compounds which are inhibitors of β-1-3 glucan synthase may be effective against PC. Immunosupressed mice infected with PC have been treated sucessfully with compounds LY302146 and LY307853 sodium salt both of which are inhibitors of β-1-3 glucan synthase. To help delineate their mode of action, electron microscopic evaluation of samples of PC grown in cultures containing these compounds was undertaken.</jats:p
