Helminthes have embryotoxic and teratogenic effects to host's cells and tissues. Investigations were carried out mainly on embryo and fetus in mammals. Blaszkowska, J. (1998);Kadlubowski R. (2000) conducted studies of in chick embryos. Dose-dependent effect is also studied and found that small doses cause embryotoxic effect, while higher doses -teratogenic. Anisakis simplex antigens have also embryotoxic effect has been found. The aim of our research was to examine the effect of A. simplex somatic antigen to the development of chick embryos in its experimental introduction in various ways and at different stages of embryogenesis. For the study chicken embryos were used at different stages of embryogenesis: 7.5, 10.5 and 12.5 days. Methods for introducing antigen chicken embryos: in the allantois cavity, on-chorion allantois membrane and yolk sac at 0.2 ml. The autopsy was performed on embryos 2 and 8 days. The eggs and embryos were weighed and evaluated the embryonic development. As a result of the first experience the greatest change observed by mass, and when administered in the development of antigen in both yolk sac on day 2 (1.68 ± 0.06, unlike control 2.25 ± 0.20), and at 8 days ( 9.97 ± 6.21 in the experiment versus 14.89 ± 0.78 in the control), respectively. In the second experiment eggs were used at 1 and 5 day incubation embryos. The antigen was administered in both cases also in the yolk sac at a dose of 0.2 ml. In the second experiment there was a delay in the development of both cases at autopsy after 2 days in non-incubated eggs missing the development of, unlike the control, the development of which 48 hours corresponded; including 5 daily observed decrease in weight 0.88 ± 0.22, against 1.05 ± 0.05 and 8 days in a similar way. As a result of experiments on the effect of the Anisakis simplex somatic antigen on the development of chick embryos embryotoxic action installed. Thus antigen has the greatest effect on development of early embryos and putting it into the yolk sac.
Проведено морфологическое исследование 62 образцов говядины, полученной при проведении ВСЭ на убойных пунктах и лабораториях ВСЭ г. Перми и Пермского района Пермского края в апреле-мае 2017 года. По результатам визуального осмотра мышечные ткани не имели патологических изменений, характерных для инвазионных болезней. Однако, по результатам гистологического исследования, говядина на 100 % была инвазирована Sarcocystis spp. По морфологическим признакам цисты соответствуют описанию Sarcocystis bovicanis (S. cruzi). При гистологическом исследовании выявлены дистрофия и распад сарколеммы в прилегающих к цистам мышечных волокнах, а также в некоторых случаях-очаговые инфильтраты из клеток лимфо-макрофагального ряда, что свидетельствует о иммуногенном воздействии возбудителя. Таким образом, в мускулатуре крупного рогатого скота при поражении саркоцистозом происходят дистрофические изменения, являющиеся показателем токсических реакций. Наличие иммунокомпетентных клеток по периферии миоцитов свидетельствует о развитии иммунологических клеточных реакций, особенно близ пораженных мышечных волокон. Выявленные изменения приводят к снижению качества мясной продукции.
In this article the results of comparative statistical analysis of longtime (from 2005 to 2019) domestic dogs and cats intestinal cestodoses infestation dynamics are represented. The role of infections commons to human and animals to the distribution amount population is determinate. Fecal samples conserved in Turdyev solution were analyzed by combine and sedimentation methods. The prevalence in domestic dogs’ is 26,54% as a one in domestic cats is 18,56%. The level of infection with Cestoda is established in 1,18% of dogs and 1,90% of cats, including Dibothriocephalus sp. Linnaeus, 1758, Spirometra erinacei-eurоpaei Rudolphi, 1819, Taeniidae like eggs, Hydatigera taeniaeformis Batsch, 1786; Lamarck, 1816, Dipylidium caninum Linnaeus, 1758; Railliet, 1892, Mesocestoides lineatus Goeze, 1782; Railliet, 1893 and Hymenolepis nana Siebold,1852. In general, domestic carnivorous from owners, apparently, don’t play significant role in the wide spread of zoonotic Cestoda infections in the Perm population. However, a special attention of medical specialists should be paid to mesocestoidiasis, sparganosis and Hydatigera / strobilocercus infection in connection with their potential danger to human’s health.
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