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  1. Artikel: Morphology of Adults and Immatures of the Acanthocephalan, Pomphorhynchus fuhaiensis Yue, 1998 (Acanthocephala: Pomphorhynchidae) from Cyprinid Fish in Northwest China

    Zhao, Wen Ting / Pan, Ting Shuang / Yue, Cheng / Yao, Wei J. / Nie, Pin

    Journal of parasitology. 2021 June 4, v. 107, no. 3

    2021  

    Abstract: Adult specimens of Pomphorhynchus fuhaiensis were identified from common carp (Cyprinus carpio L.) in Ulungur Lake of northwest China, and acanthors, acanthellae, cystacanths dissected from Gammarus lacustris in a small tributary of Ulungur River for the ...

    Abstract Adult specimens of Pomphorhynchus fuhaiensis were identified from common carp (Cyprinus carpio L.) in Ulungur Lake of northwest China, and acanthors, acanthellae, cystacanths dissected from Gammarus lacustris in a small tributary of Ulungur River for the first time. The acanthocephalans were also found in crucian carp (Carassius carassius L.), tench (Tinca tinca L.), oriental bream (Abramis brama orientalis Berg), and ide (Leuciscus idus L.) in the lake. This species is distinguished from other species in Pomphorhynchus by its large, spherical bulb and very long neck as well as by a cylindrical proboscis armed with 15–17 longitudinal rows of 9–12 hooks each. The anterior proboscis hooks are almost uniform in size and shape, the sixth hook in a short row and the seventh hook in long row decrease abruptly in size posteriorly with the last end hook being a little larger than the prebasal hook, and in a ring; posterior proboscis hooks much more widely spaced. Furthermore, the lemnisci are claviform. The mean neck:trunk ratio is about 0.5, which is larger than most other species in Pomphorhynchus. Females are larger than males. In males, the testes are in one-third to one-half of the trunk, equal, ovoid–spheroid, usually contiguous, and small relative to the body size, and there are 6 ovoid cement glands. Pomphorhynchus fuhaiensis is similar to Pomphorhynchus laevis but can be distinguished by the number of longitudinal rows of hooks. Pomphorhynchus laevis is armed with 18–20 longitudinal rows of 11–13 hooks, P. fuhaiensis is armed with 15–17 longitudinal rows of 9–12 hooks.
    Schlagwörter Abramis brama ; Carassius carassius ; Cyprinus carpio ; Gammarus ; Leuciscus idus ; Pomphorhynchus laevis ; Tinca tinca ; adults ; body size ; bream ; bulbs ; cement ; immatures ; lakes ; neck ; parasitology ; proboscis ; rivers ; China
    Sprache Englisch
    Erscheinungsverlauf 2021-0604
    Umfang p. 446-454.
    Erscheinungsort American Society of Parasitologists
    Dokumenttyp Artikel
    ZDB-ID 300870-8
    ISSN 1937-2345 ; 0022-3395
    ISSN (online) 1937-2345
    ISSN 0022-3395
    DOI 10.1645/13-228
    Datenquelle NAL Katalog (AGRICOLA)

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  2. Artikel ; Online: MORPHOLOGY OF ADULTS AND IMMATURES OF THE ACANTHOCEPHALAN, POMPHORHYNCHUS FUHAIENSIS YUE, 1998 (ACANTHOCEPHALA: POMPHORHYNCHIDAE) FROM CYPRINID FISH IN NORTHWEST CHINA.

    Zhao, Wen Ting / Pan, Ting Shuang / Yue, Cheng / Yao, Wei J / Nie, Pin

    The Journal of parasitology

    2021  Band 107, Heft 3, Seite(n) 446–454

    Abstract: Adult specimens of Pomphorhynchus fuhaiensis were identified from common carp (Cyprinus carpio L.) in Ulungur Lake of northwest China, and acanthors, acanthellae, cystacanths dissected from Gammarus lacustris in a small tributary of Ulungur River for the ...

    Abstract Adult specimens of Pomphorhynchus fuhaiensis were identified from common carp (Cyprinus carpio L.) in Ulungur Lake of northwest China, and acanthors, acanthellae, cystacanths dissected from Gammarus lacustris in a small tributary of Ulungur River for the first time. The acanthocephalans were also found in crucian carp (Carassius carassius L.), tench (Tinca tinca L.), oriental bream (Abramis brama orientalis Berg), and ide (Leuciscus idus L.) in the lake. This species is distinguished from other species in Pomphorhynchus by its large, spherical bulb and very long neck as well as by a cylindrical proboscis armed with 15-17 longitudinal rows of 9-12 hooks each. The anterior proboscis hooks are almost uniform in size and shape, the sixth hook in a short row and the seventh hook in long row decrease abruptly in size posteriorly with the last end hook being a little larger than the prebasal hook, and in a ring; posterior proboscis hooks much more widely spaced. Furthermore, the lemnisci are claviform. The mean neck:trunk ratio is about 0.5, which is larger than most other species in Pomphorhynchus. Females are larger than males. In males, the testes are in one-third to one-half of the trunk, equal, ovoid-spheroid, usually contiguous, and small relative to the body size, and there are 6 ovoid cement glands. Pomphorhynchus fuhaiensis is similar to Pomphorhynchus laevis but can be distinguished by the number of longitudinal rows of hooks. Pomphorhynchus laevis is armed with 18-20 longitudinal rows of 11-13 hooks, P. fuhaiensis is armed with 15-17 longitudinal rows of 9-12 hooks.
    Mesh-Begriff(e) Acanthocephala/anatomy & histology ; Acanthocephala/growth & development ; Acanthocephala/isolation & purification ; Acanthocephala/ultrastructure ; Animals ; Carps/parasitology ; China/epidemiology ; Female ; Fish Diseases/epidemiology ; Fish Diseases/parasitology ; Helminthiasis, Animal/epidemiology ; Helminthiasis, Animal/parasitology ; Lakes ; Larva ; Male ; Microscopy, Electron, Scanning/veterinary ; Prevalence ; Rivers
    Sprache Englisch
    Erscheinungsdatum 2021-03-18
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 300870-8
    ISSN 1937-2345 ; 0022-3395
    ISSN (online) 1937-2345
    ISSN 0022-3395
    DOI 10.1645/13-228
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel ; Online: Communities of gastrointestinal helminths of fish in historically connected habitats: habitat fragmentation effect in a carnivorous catfish Pelteobagrus fulvidraco from seven lakes in flood plain of the Yangtze River, China.

    Li, Wen X / Nie, Pin / Wang, Gui T / Yao, Wei J

    Parasites & vectors

    2009  Band 2, Heft 1, Seite(n) 22

    Abstract: Background: Habitat fragmentation may result in the reduction of diversity of parasite communities by affecting population size and dispersal pattern of species. In the flood plain of the Yangtze River in China, many lakes, which were once connected ... ...

    Abstract Background: Habitat fragmentation may result in the reduction of diversity of parasite communities by affecting population size and dispersal pattern of species. In the flood plain of the Yangtze River in China, many lakes, which were once connected with the river, have become isolated since the 1950s from the river by the construction of dams and sluices, with many larger lakes subdivided into smaller ones by road embankments. These artificial barriers have inevitably obstructed the migration of fish between the river and lakes and also among lakes. In this study, the gastrointestinal helminth communities were investigated in a carnivorous fish, the yellowhead catfish Pelteobagrus fulvidraco, from two connected and five isolated lakes in the flood plain in order to detect the effect of lake fragmentation on the parasite communities.
    Results: A total of 11 species of helminths were recorded in the stomach and intestine of P. fulvidraco from seven lakes, including two lakes connected with the Yangtze River, i.e. Poyang and Dongting lakes, and five isolated lakes, i.e. Honghu, Liangzi, Tangxun, Niushan and Baoan lakes. Mean helminth individuals and diversity of helminth communities in Honghu and Dongting lakes was lower than in the other five lakes. The nematode Procamallanus fulvidraconis was the dominant species of communities in all the seven lakes. No significant difference in the Shannon-Wiener index was detected between connected lakes (0.48) and isolated lakes (0.50). The similarity of helminth communities between Niushan and Baoan lakes was the highest (0.6708), and the lowest was between Tangxun and Dongting lakes (0.1807). The similarity was low between Dongting and the other lakes, and the similarity decreased with the geographic distance among these lakes. The helminth community in one connected lake, Poyang Lake was clustered with isolated lakes, but the community in Dongting Lake was separated in the tree.
    Conclusion: The similarity in the helminth communities of this fish in the flood-plain lakes may be attributed to the historical connection of these habitats and to the completion of the life-cycles of this fish as well as the helminth species within the investigated habitats. The diversity and the digenean majority in the helminth communities can be related to the diet of this fish, and to the lacustrine and macrophytic characters of the habitats. The lake isolation from the river had little detectable effect on the helminth communities of the catfish in flood-plain lakes of the Yangtze River. The low similarities in helminth communities between the Dongting Lake and others may just be a reflection of its unique water environment and anthropogenic alterations or fragmentation in this lake.
    Sprache Englisch
    Erscheinungsdatum 2009-04-27
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2409480-8
    ISSN 1756-3305 ; 1756-3305
    ISSN (online) 1756-3305
    ISSN 1756-3305
    DOI 10.1186/1756-3305-2-22
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  4. Artikel ; Online: Communities of gastrointestinal helminths of fish in historically connected habitats

    Yao Wei J / Wang Gui T / Nie Pin / Li Wen X

    Parasites & Vectors, Vol 2, Iss 1, p

    habitat fragmentation effect in a carnivorous catfish Pelteobagrus fulvidraco from seven lakes in flood plain of the Yangtze River, China

    2009  Band 22

    Abstract: Abstract Background Habitat fragmentation may result in the reduction of diversity of parasite communities by affecting population size and dispersal pattern of species. In the flood plain of the Yangtze River in China, many lakes, which were once ... ...

    Abstract Abstract Background Habitat fragmentation may result in the reduction of diversity of parasite communities by affecting population size and dispersal pattern of species. In the flood plain of the Yangtze River in China, many lakes, which were once connected with the river, have become isolated since the 1950s from the river by the construction of dams and sluices, with many larger lakes subdivided into smaller ones by road embankments. These artificial barriers have inevitably obstructed the migration of fish between the river and lakes and also among lakes. In this study, the gastrointestinal helminth communities were investigated in a carnivorous fish, the yellowhead catfish Pelteobagrus fulvidraco , from two connected and five isolated lakes in the flood plain in order to detect the effect of lake fragmentation on the parasite communities. Results A total of 11 species of helminths were recorded in the stomach and intestine of P. fulvidraco from seven lakes, including two lakes connected with the Yangtze River, i.e. Poyang and Dongting lakes, and five isolated lakes, i.e. Honghu, Liangzi, Tangxun, Niushan and Baoan lakes. Mean helminth individuals and diversity of helminth communities in Honghu and Dongting lakes was lower than in the other five lakes. The nematode Procamallanus fulvidraconis was the dominant species of communities in all the seven lakes. No significant difference in the Shannon-Wiener index was detected between connected lakes (0.48) and isolated lakes (0.50). The similarity of helminth communities between Niushan and Baoan lakes was the highest (0.6708), and the lowest was between Tangxun and Dongting lakes (0.1807). The similarity was low between Dongting and the other lakes, and the similarity decreased with the geographic distance among these lakes. The helminth community in one connected lake, Poyang Lake was clustered with isolated lakes, but the community in Dongting Lake was separated in the tree. Conclusion The similarity in the helminth communities of this fish in the flood-plain lakes may be attributed to the historical connection of these habitats and to the completion of the life-cycles of this fish as well as the helminth species within the investigated habitats. The diversity and the digenean majority in the helminth communities can be related to the diet of this fish, and to the lacustrine and macrophytic characters of the habitats. The lake isolation from the river had little detectable effect on the helminth communities of the catfish in flood-plain lakes of the Yangtze River. The low similarities in helminth communities between the Dongting Lake and others may just be a reflection of its unique water environment and anthropogenic alterations or fragmentation in this lake.
    Schlagwörter Microbiology ; QR1-502 ; Science ; Q ; DOAJ:Microbiology ; DOAJ:Biology ; DOAJ:Biology and Life Sciences ; Infectious and parasitic diseases ; RC109-216 ; Internal medicine ; RC31-1245 ; Medicine ; R ; DOAJ:Internal medicine ; DOAJ:Medicine (General) ; DOAJ:Health Sciences
    Thema/Rubrik (Code) 550
    Sprache Englisch
    Erscheinungsdatum 2009-04-01T00:00:00Z
    Verlag BioMed Central
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  5. Artikel: Reproducibility of 99mTc-TRODAT-1 SPECT measurement of dopamine transporters in Parkinson's disease.

    Hwang, Wen J / Yao, Wei J / Wey, Shiaw P / Ting, Gann

    Journal of nuclear medicine : official publication, Society of Nuclear Medicine

    2004  Band 45, Heft 2, Seite(n) 207–213

    Abstract: Unlabelled: Functional brain imaging targeting the presynaptic dopamine nerve terminal of the nigrostriatal system has been used for monitoring disease progression and evaluating therapeutic effectiveness in patients with Parkinson's disease (PD). (99m) ... ...

    Abstract Unlabelled: Functional brain imaging targeting the presynaptic dopamine nerve terminal of the nigrostriatal system has been used for monitoring disease progression and evaluating therapeutic effectiveness in patients with Parkinson's disease (PD). (99m)Tc-TRODAT-1 binds with high selectivity to the dopamine transporters in the striatum and can be imaged with SPECT 4 h after injection. We studied the test and retest reproducibility of (99m)Tc-TRODAT-1 SPECT measures in patients with PD to assess the reliability of (99m)Tc-TRODAT-1 for longitudinal evaluation of the nigrostriatal dopaminergic function.
    Methods: Each of 20 patients with PD underwent 2 (99m)Tc-TRODAT-1 SPECT scans at an interval of 2-3 wk. Patients were imaged 4 h after injection of 925 MBq (99m)Tc-TRODAT-1. Two imaging outcome measures were evaluated: the ratio of specific-striatal-to-nonspecific uptake and the striatal asymmetry index. For both measures, the test/retest variability was calculated. Reproducibility of the 2 outcome measures was evaluated in terms of intraclass correlation coefficient (ICC) and 95% limits of agreement.
    Results: The mean ratio of specific-striatal-to-nonspecific uptake showed excellent test/retest reproducibility with a mean variability of 10.20%, an ICC of 0.95 (95% confidence interval = 0.88-0.98), and 95% limits of agreement, ranging from -0.19 to 0.19. The striatal asymmetry index had larger test/retest variability (60.41%), a slightly smaller ICC of 0.86 (95% confidence interval = 0.65-0.95), and a wider range of 95% limits of agreement (-16.09 to 15.19). In addition, there was a significant negative correlation between the mean ratio of specific-striatal-to-nonspecific uptake and the motor subscore of the Unified Parkinson's Disease Rating Scale in both test and retest conditions.
    Conclusion: Our data indicate that the imaging outcome expressed by the mean ratio of specific-striatal-to-nonspecific uptake has an excellent test/retest reproducibility and correlates with disease severity. These findings suggest that (99m)Tc-TRODAT-1 SPECT imaging is useful and feasible for measuring disease progression in PD.
    Mesh-Begriff(e) Brain/diagnostic imaging ; Brain/metabolism ; Corpus Striatum/diagnostic imaging ; Corpus Striatum/metabolism ; Dopamine/metabolism ; Dopamine Plasma Membrane Transport Proteins ; Female ; Humans ; Male ; Membrane Glycoproteins ; Membrane Transport Proteins/metabolism ; Middle Aged ; Nerve Tissue Proteins ; Organotechnetium Compounds ; Parkinson Disease/diagnostic imaging ; Parkinson Disease/metabolism ; Radiopharmaceuticals ; Reproducibility of Results ; Tomography, Emission-Computed, Single-Photon ; Tropanes
    Chemische Substanzen Dopamine Plasma Membrane Transport Proteins ; Membrane Glycoproteins ; Membrane Transport Proteins ; Nerve Tissue Proteins ; Organotechnetium Compounds ; Radiopharmaceuticals ; Tropanes ; technetium Tc 99m TRODAT-1 ; Dopamine (VTD58H1Z2X)
    Sprache Englisch
    Erscheinungsdatum 2004-02
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 80272-4
    ISSN 1535-5667 ; 0161-5505 ; 0097-9058 ; 0022-3123
    ISSN (online) 1535-5667
    ISSN 0161-5505 ; 0097-9058 ; 0022-3123
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  6. Artikel: Mortalities induced by the copepod Sinergasilus polycolpus in farmed silver and bighead carp in a reservoir.

    Wang, Gui T / Li, Wen X / Yao, Wei J / Nie, P

    Diseases of aquatic organisms

    2002  Band 48, Heft 3, Seite(n) 237–239

    Abstract: The frequency distributions of the parasitic copepod Sinergasilus polycolpus were examined in silver carp Hypophthalmichthys molitrix and bighead carp Aristichthys nobilis during a disease outbreak of the 2 species of fish in a reservoir in China. The ... ...

    Abstract The frequency distributions of the parasitic copepod Sinergasilus polycolpus were examined in silver carp Hypophthalmichthys molitrix and bighead carp Aristichthys nobilis during a disease outbreak of the 2 species of fish in a reservoir in China. The mean abundance of the copepod was positively related with host length and age, and the overdispersion of the copepod in both silver and bighead carp was fitted well with negative binomial distribution. Although parasite-induced host mortality was observed, a peaked age-parasite abundance curve was not detected in the present parasite-host system. It is also proposed that this peaked age-abundance curve is unlikely to be observed in its natural host populations.
    Mesh-Begriff(e) Age Factors ; Animals ; Aquaculture ; Carps/parasitology ; China/epidemiology ; Crustacea/physiology ; Disease Outbreaks/veterinary ; Ectoparasitic Infestations/epidemiology ; Ectoparasitic Infestations/mortality ; Ectoparasitic Infestations/veterinary ; Fish Diseases/epidemiology ; Fish Diseases/mortality ; Fish Diseases/parasitology ; Gills/parasitology ; Gills/pathology ; Host-Parasite Interactions
    Sprache Englisch
    Erscheinungsdatum 2002-04-05
    Erscheinungsland Germany
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 0177-5103
    ISSN 0177-5103
    DOI 10.3354/dao048237
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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