Main Subjects : Veterinary Cestodes


HISTOCHEMICAL STUDY OF THE HEPATIC METACESTODES IN INFECTED SHEEP WITH HYDATIDOSIS

Buthaina Al-Sabawi; Hanan Sadoon; Mohammed saeed

Iraqi Journal of Veterinary Sciences, In Press
DOI: 10.33899/ijvs.2022.133402.2222

This study aimed detection the liver histopathological changes of hydatid cysts sheep infestation. Seventeen infested liver's sheep with hydatid cysts were gathered from the local butchers. The specimens sectioned, processed, and stained with hematoxylin and eosin and some special stains such as Gomori's aldehyde fuschin, Van Gieson, Toluidine blue, Alcian blue, Periodic Acid Schiff (PAS) and Mansso's trichrome. The results of hematoxylin and eosin stain of infected groups revealed presents of the laminated membrane of hydatid cyst in a different area of hepatic tissue surrounding by infiltration of inflammatory cells, and increase fibrous tissue and between severe necrotic hepatic tissue. The special stains firstly as in Gomori's aldehyde fuschin stain revealed the protoscolex in green colour and elastic fibres of connective tissue surrounding hydatid cyst with its laminated membrane in purple colour. Van Gieson stain showed dark brown-purple colour of the elastic fibres reduplication of connective tissue surrounding hydatid cyst, while Toluidine blue stain sections revealed the dark blue stain of acidic components of hydatid cyst laminated membrane and necrotic hepatocytes. Alcian blue stain revealed the blue colour reactivity of the proteoglycans of the connective tissue surrounding hydatid cyst. PAS reaction stain revealed the magenta colour reaction of the intact hepatocytes in the control group comparing with depletion pf magenta colour in necrotic hepatocytes surrounding hydatid cyst. Masson's trichrome stain revealed increased collagen fibres of the connective tissue. The findings revealed that infection with hydatid cysts causes a variety of histopathological alterations that appeared through several tissue stains

Perturbation of liver function markers and serum electrolytes associated with Echinococcus granulosus infection in sheep

Ibrahim F. Ali; Tamara W. Jihad

Iraqi Journal of Veterinary Sciences, 2022, Volume 36, Issue 1, Pages 65-69
DOI: 10.33899/ijvs.2021.128926.1624

Histopathological alterations in the liver of intermediated hosts infected with Echinococcus granulosus parasite can be occurred by necrotic expansion as a result of an increase in growth of the parasite larva stage (metacestode), which may cause perturbation in production of liver function markers. Thus, this study aims to determinate the liver biochemical profile and some serum electrolytes of E. granulosus-infected sheep at different hydatid cyst infection ratios (IRs). fifty livers from naturally E. granulosus-infected sheep with five livers from uninfected-sheep as a control group were enrolled in this study. Cardiac blood samples under sterilized conditions were gently collected and isolated sera were biochemically assayed for determination of liver function markers including; Aspartate transaminase (AST), Alanine transaminase (ALT), alkaline phosphatase (ALP), Albumin (ALB) and total protein (TP), as well as the level of some serum electrolytes including Ca, K, Na and Cl using fully automatic biochemical analyzer, FUJI-Film. The current data indicated a progressive increase in the level of AST, ALT, ALP, Ca and K. The level of ALB and TP were gradually declined with a rise of liver infection ratio with hydatid cysts. In conclusion, the current findings indicated perturbation of liver function markers and the level of some serum electrolytes, mainly Ca and K in E. granulosus-infected sheep based on the infection ratio of liver. Additionally, acute and chronic infection of E. granulosus parasites in sheep can be determined based on the level of liver function markers in serum.

Molecular differentiation of Thysaniezia (Helictometra) giardi and Moniezia species based on 18s rRNA gene in small ruminants

Monyer A. Alfatlawi; Yahia Kh. Ismail; Mansour J. Ali; Azhar C. Karawan; Israa N. Ibadi

Iraqi Journal of Veterinary Sciences, 2021, Volume 35, Issue 1, Pages 105-108
DOI: 10.33899/ijvs.2020.126407.1313

This study was conducted to investigate Anoplocephalidia Cestoda in sheep and goat and evaluate the 18s rRNA to genetically differentiate the genera of this family. Sixty sample tapeworms were collected from small intestines of 30 sheep and 30 goats from different slaughterhouses in Al-Najaf and Al-Qadisiyah provinces, during September, 2016 to February, 2017. Based on polymerase chain reaction (PCR) and 18s rRNA gene partial sequencing (18sGPS) methods used, tapeworm infection of sheep and goat’s intestines was 32.9% and 31.4%, respectively. The partial gene sequencing of the 18S rRNA gene showed two closely related isolates of M. benedeni which are aligned distinctly to an NCBI isolate of the same species from China. For T. giardia, the outcomes of the phylogenetic analysis unveiled three distinct local isolates which were similar to an NCBI database isolate from China. The current data ensure the importance of the molecular techniques in differentiating between Thysaniezia (Helictometra) giardi and Moniezia species that were identified for their presence in the small intestines of sheep and goats.

Effect of probiotic acidophilus plus against infection with secondary hydatid disease in BALB /c mice

Suhayla Y. Yousif; Asmaa A. Ali

Iraqi Journal of Veterinary Sciences, 2020, Volume 34, Issue 1, Pages 115-121
DOI: 10.33899/ijvs.2019.125613.1104

The current study investigated the effect of acidophilus plus probiotic in the immune activities in mice to infestation with the cystic echinococcosis. Two dilutions of the probiotic bacteria 9*106/0.1 ml, 30*103/0.1 ml CFU were used, by intraperitoneally injection in the experimental animals, pre and post infections with protoscoleces of Echinococcus granulosus. Before infection remedy comprised injection by acidophilus plus twice with 72 hours interval, on the seventh day, animals were injected with protoscoleces intraperitoneally, after infection remedy implicated injection of animals with protoscoleces of Echinococcus protoscoleces first, next to 72 hours, probiotics were inoculated intraperitoneally. Many criteria were taken into consideration including, numbers, weights, diameters and percentage reduction of hydatid cysts of treated mice in contrast to the animals infested with only. The study showed a decline in cysts including their diameter, weighting, digit, accompanied by increasing the percentage reduction of hydatid cysts in treated mice, the highest percentage reduction was 98.03%, at both dilutions, 6 months post infection, and the minimum cysts number was 0.8 in comparison with the control group 39.4, with significant difference, in the same experiment. The minimum cysts weight was 0.0104 gm, 6 months post infection at the dilution 9*106/0.1 ml CFU, compared with the control group 0.442 gm. The smallest cysts diameter was 0.057 mm in comparison with the control group 0.882 mm at dilution 9*106/0.1 ml CFU, 6 months post infection. Acidophilus plus it may well be deduced that probiotic bacteria can be used as medicinal and remedial method against infection with hydatidosis.