RESUMO
The present study reports a rare case of Taenia saginata infection, which was initially diagnosed as acute cholecystitis in a Tibetan patient at the Qinghai-Tibetan Plateau pastoral area, China. A 45-year-old female was initially diagnosed with acute cholecystitis at a hospital in China. She had a slight fever, weight loss and constipation and complained of pain in the upper abdomen and left back areas. Increase of monocyte, eosinophil and basophil levels were shown. Taenia sp. eggs were detected in a fecal examination. An adult tapeworm approximately 146 cm in length, whitish-yellow color, was collected from the patient after treatment with traditional Chinese medicine. The adult tapeworm had a scolex and proglottids with genital pores. The scolex was rectangular shape with 4 suckers and rostellum without hooklet. The cox1 gene sequence shared 99.5-99.8% homology with that of T. saginata from other regions in China. The patient was diagnosed finally infected with T. saginata by morphological and molecular charateristics.
Assuntos
Colecistite Aguda , Taenia saginata , Taenia , Teníase , Adulto , Animais , China , Erros de Diagnóstico , Feminino , Humanos , Pessoa de Meia-Idade , Taenia/genética , Taenia saginata/genética , Teníase/diagnóstico , TibetRESUMO
Coenurosis is an important zoonotic helminthic disease caused by the larval stage of the tapeworm Taenia multiceps. This parasite typically infects the brain of the intermediate hosts, including sheep, goat, cattle and even humans. We report a case of T. multiceps infection in a yak confirmed by clinical symptoms, morphological characteristics, and molecular and phylogenetic analyses. The coenurus was thin-walled, whitish, and spherical in shape with a diameter of 10 cm. The parasite species was identified as T. multiceps by PCR amplification and sequencing of the 18S rRNA, cox1 and nad1 genes. Three gene sequences all showed high homology (all above 97%) with the reference sequences from different hosts. Moreover, phylogenetic reconstructions with the 3 published Taenia gene sequences confirmed that the Qinghai yak isolate was closely related to T. multiceps. Although there are advanced diagnosis and treatment methods for coenurosis, early infection is difficult to diagnose. Importantly, the findings of yak infection case should not be ignored due to its zoonotic potential.
Assuntos
Doenças dos Bovinos/parasitologia , Neurocisticercose/veterinária , Taenia/genética , Animais , Bovinos , Ciclo-Oxigenase 1/genética , Eletroforese em Gel de Ágar/veterinária , Masculino , NAD/genética , Neurocisticercose/parasitologia , Filogenia , Reação em Cadeia da Polimerase/veterinária , RNA Ribossômico 18S/genética , Alinhamento de Sequência/veterinária , Análise de Sequência de DNA/veterinária , Taenia/classificação , Taenia/isolamento & purificação , TibetRESUMO
Six cystic metacestodes were found in the abdominal muscles of a wild rabbit, Lepus sinensis, in China. The coenurus contained one or more scolices armed with hooklets. Mitochondrial cox1 (1,623 bp) confirmed 98% homology with cox1 of Taenia serialis. This is the first report of T. serialis infection in an intermediate host in the Qinghai Tibetan Plateau Area, China.
Assuntos
Animais Selvagens/parasitologia , Infecções por Cestoides/parasitologia , Infecções por Cestoides/veterinária , Coelhos/parasitologia , Doenças dos Roedores/parasitologia , Taenia/isolamento & purificação , Taenia/patogenicidade , Animais , China , Masculino , Filogenia , Taenia/anatomia & histologia , Taenia/genética , Tibet , Zoonoses/prevenção & controleRESUMO
This study was carried out to determine the pathogen-causing diarrhoea in sheep Ovis aries in the Qinghai Tibetan Plateau Area, China. A trophozoite was identified as species of ciliate alveolates infecting the sheep based on morphological characteristics examined by microscope. It was mostly spherical, colourless and transparent, with many vesicles. Macronucleus and contractile vacuoles could not be distinguished. Size of the trophozoite was 80-180 × 70-150 µm and its surface was covered with cilia. Molecular analysis based on sequences of 18S rRNA and ITS genes confirmed the ciliate species as Balantidium coli. According to the literature, there have been many epidemiological investigations of B. coli infection in pigs, monkeys and humans. To our knowledge, this was the first report of B. coli infections in sheep in the Qinghai Tibetan Plateau Area of China, or eleswhere around the world. Importantly, the sheep case was rare but raised our concern that B. coli may spread across species and expand its host range.
