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    Tytuł:
    Morphological features of Cloacotaenia megalops (Nitzsch in Creplin, 1829) (Cestoda, Hymenolepididae) from different hosts
    Charakterystyka morfometryczna Cloacotaenia megalops (Nitzsch in Creplin, 1829) (Cestoda, Hymenolepididae) z różnych żywicieli
    Autorzy:
    Nowak, M.
    Krolaczyk, K.
    Kavetska, K.
    Pilarczyk, B.
    Tematy:
    Anatinae
    Cloacotaenia megalops
    animal parasite
    bird
    host impact
    morphology
    tapeworm
    West Pomeranian region
    Polska
    Cestoda
    Hymenolepididae
    host
    parasite
    Pokaż więcej
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Powiązania:
    https://bibliotekanauki.pl/articles/839131.pdf  Link otwiera się w nowym oknie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Morphological features of Cloacotaenia megalops (Nitzsch in Creplin, 1829) (Cestoda, Hymenolepididae) from different hosts
    Charakterystyka morfometryczna Cloacotaenia megalops (Nitzsch in Creplin, 1829) (Cestoda, Hymenolepididae) z różnych żywicieli
    Autorzy:
    Nowak, M.
    Królaczyk, K.
    Kavetska, K.
    Pilarczyk, B.
    Tematy:
    Anatinae
    Cloacotaenia megalops
    animal parasite
    bird
    host impact
    morphology
    tapeworm
    West Pomeranian region
    Polska
    Cestoda
    Hymenolepididae
    host
    parasite
    Pokaż więcej
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Powiązania:
    https://bibliotekanauki.pl/articles/2143302.pdf  Link otwiera się w nowym oknie
    Opis:
    The tapeworm species Cloacotaenia megalops (Nitzsch in Creplin, 1829) is characterized by a very specific morphology. A particularly distinct feature is a large almost square scolex in which four fleshy suction cups are embedded and a rudimentary rostellum. During standard studies of wild duck cestode fauna in northwestern Poland, some morphological differences were observed among specimens, mainly in the shape of scolices and hermaphroditic proglottids of C. megalops isolated from different bird species. This paper attempts to demonstrate the impact of the host species on morphology of the parasite. The study material consisted of 39 individuals of C. megalops (19 from Aythya fuligula, 10 from Anas platyrhynchos, 4 from Bucephala clangula, 4 from Aythya marila and 2 from A. ferina). The isolated parasites were fixed and stored in 70% ethanol and solid preparations were made. Selected external and internal structures of the parasite were measured and photographed using a Zeiss microscope, a microscope camera Opta Tech 2.1 and Opta View 6.0.2.2. It was stated that the sizes of the most important elements of the parasite morphology are generally consistent with those presented in the available literature, nevertheless some differences were observed in both morphology and sizes of some anatomical structures, especially in the form of scolices and hermaphroditic proglottids between specimens isolated from hosts representing three different eco-tribes (Aythyini, Anatini and Mergini).
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Glutathione-S-transferase activity in mouse muscle during experital trichinellosis
    Autorzy:
    Derda, M
    Wandurska-Nowak, E.
    Boczon, K.
    Tematy:
    parasite
    glutathione s-transferase
    infection
    muscle
    mouse
    Trichinella
    mice
    trichinellosis
    host
    skeletal muscle
    Pokaż więcej
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Powiązania:
    https://bibliotekanauki.pl/articles/837806.pdf  Link otwiera się w nowym oknie
    Opis:
    The role of glutathione-S-transferase (GST, EC 2.5.1.18) in biochemical host defence in experimental trichinellosis was evaluated. The activity of GST in mouse skeletal muscles was measured during the muscular phase of trichinellosis, starting from the 3rd week post infection (w.p.i.) to the 11th w.p.i. Activity was determined spectrophotometrically by monitoring the formation of thioether (S-2,4-dinitrophenylglutathione) from the reduced form of glutathione and 1-chloro-2,4-dinitrobenzene used as a substrate and as an example of xenobiotics. The changes in the activity of GST were as follows: an increase in activity starts in the 4th w.p.i., peaks (up to 310% of the normal value) in the 6th w.p.i., decreases in the 8th week and a final, weak rise was observed in week 11. The statistically significant changes in GST activity in this phase of experimental trichinellosis suggest that this enzyme participates in the biochemical defence of the host against Trichinella infection.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Glutathione-S-transferase activity in mouse muscle during experital trichinellosis
    Autorzy:
    Derda, M.
    Wandurska-Nowak, E.
    Boczoń, K.
    Tematy:
    parasite
    glutathione s-transferase
    infection
    muscle
    mouse
    Trichinella
    mice
    trichinellosis
    host
    skeletal muscle
    Pokaż więcej
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Powiązania:
    https://bibliotekanauki.pl/articles/2147897.pdf  Link otwiera się w nowym oknie
    Opis:
    The role of glutathione-S-transferase (GST, EC 2.5.1.18) in biochemical host defence in experimental trichinellosis was evaluated. The activity of GST in mouse skeletal muscles was measured during the muscular phase of trichinellosis, starting from the 3rd week post infection (w.p.i.) to the 11th w.p.i. Activity was determined spectrophotometrically by monitoring the formation of thioether (S-2,4-dinitrophenylglutathione) from the reduced form of glutathione and 1-chloro-2,4-dinitrobenzene used as a substrate and as an example of xenobiotics. The changes in the activity of GST were as follows: an increase in activity starts in the 4th w.p.i., peaks (up to 310% of the normal value) in the 6th w.p.i., decreases in the 8th week and a final, weak rise was observed in week 11. The statistically significant changes in GST activity in this phase of experimental trichinellosis suggest that this enzyme participates in the biochemical defence of the host against Trichinella infection.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Heavy metal concentration in plerocercoids of Triaenophorus nodulosus [Pallas, 1781] [Cestoda: Triaenophoridae] and in different organs of their host - perch Perca fluviatilis [L.]
    Autorzy:
    Popiołek, M.
    Okulewicz, A.
    Dobicki, W.
    Nowak, R.
    Tematy:
    Triaenophorus nodulosus
    organ
    atomic absorption spectroscopy
    water pollutant
    different organ
    host
    parasite
    Cestoda
    determination
    perch
    plerocercoid
    Triaenophoridae
    Perca fluviatilis
    concentration
    water pollution
    heavy metal
    Pokaż więcej
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Powiązania:
    https://bibliotekanauki.pl/articles/2143843.pdf  Link otwiera się w nowym oknie
    Opis:
    Background. Heavy metals are at present classified among the most important and dangerous water pollutants. Since over 15 years parasites have been used as a bioindicators of water pollution, e.g. using their ability to accumulate heavy metals. Concentration of four elements (Zn, Cd, Ni, Cu) in selected organs of the perch (Perca fluviatilis) and in the tissues of its parasite, plerocercoid of the tapeworm Triaenophorus nodulosus, was analysed. Material and methods. The fish were subject to full helminthological section, resulting in 66 tapeworm larvae isolated from cysts, located in the liver. Plerocecroids, gills, liver and intestine with duodenum were removed and frozen. Content of heavy metals was determined with atomic absorption spectroscopy method. Results. The distribution of the content of Ni, Cd and Zn was similar. In all cases, among all the examined fish organs, the highest mean concentration of the metals was found in the liver, followed by the intestine; it was the lowest in the gills. The mean concentration of the metals in the tapeworm tissues was from 6 to 74 x higher than in the gills, 5−37 x higher than in the intestine and 2.5−28 x higher than in the liver. The concentration of Cu was also the highest in the tapeworm tissues, but its concentration in the fish intestine and liver was nearly the same; it was the lowest in the gills.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-10 z 10

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