Hydatidosis in camels (Camelus dromedarius) and their potential role in the epidemiology of Echinococcus granulosus in Iran

2005 ◽  
Vol 79 (2) ◽  
pp. 119-125 ◽  
Author(s):  
N.A. Ahmadi
Keyword(s):  
Echinococcus Granulosus ◽  
Direct Relationship ◽  
Potential Role ◽  
Camelus Dromedarius ◽  
Organ Distribution ◽  
Hydatid Cysts ◽  
Intensity Of Infection ◽  
Liver Cysts ◽  
Lung Cysts

AbstractHydatid cysts were recovered from 35.2% (233/661) of camels (Camelus dromedarius) slaughtered in five different regions of Iran. The degree of prevalence between males (34.4%) and females (36.6%) was not statistically significant. The highest rate of infection (59.3%) was found in the Isfahan region (in the central part of Iran) while the lowest (25.7%) was found in Kerman province. The organ distribution of cysts was 49.4% in lungs alone, 30.0% in both liver and lungs, 14.6% in liver only and 6.0% in other organs. Therefore, the lungs were the predominant sites of the hydatid cyst. The range in the number of cysts was 1–48 in infected animals. The majority of the camels had 1–5 cysts, with 21.9%, 11.6% and 5.6% of infected camels having 6–10, 11–20 and 21 or more cysts respectively. There was a direct relationship between the rate and intensity of infection and host age. The fertility rate of lung cysts (69.7%) was higher than that of liver cysts (58.7%) and other organs (50.0%) whilst the viability rate of protoscoleces of liver fertile cysts (80.3%) was significantly higher than that of lung cysts (55.8%) and other organs (57.1%). The role of camels in the epidemiology of Echinococcus granulosus in Iran is discussed.

Prevalence of cystic echinococcosis in camels (Camelus dromedarius) in Libya

1998 ◽  
Vol 72 (1) ◽  
pp. 27-31 ◽  
Author(s):  
M.M. Ibrahem ◽  
P.S. Craig
Keyword(s):  
Infection Rate ◽  
Cystic Echinococcosis ◽  
Prevalence Rate ◽  
Camelus Dromedarius ◽  
Meat Production ◽  
Hydatid Cysts ◽  
Liver Cysts ◽  
Sheep And Goats

AbstractIn an abattoir study, 514 camels, slaughtered for meat production in different areas of northern Libya were examined for the presence of cystic echinococcosis (CE). In addition, 367 sheep and 184 goats were examined. The overall prevalence of infection with CE was 48% in camels, 15.8% in sheep and 3.8% in goats. The infection rate, number and size of cysts were significantly higher in older camels. In six city abattoirs across northern Libya, i.e. Zawia, Tripoli, ElKhumes, Mesurata, Sirt and Benghazi, the prevalence rate of infection in camels ranged from 38.7% to 55.2%, in comparison with sheep and goat rates which were between 0% and 37.9% and 0% and 8.2%, respectively. In camels, the lungs were the most frequently infected organs (85.4%) with liver cysts occurring at a significantly lower rate (33%). In contrast, the liver was the predominant infected site with prevalence values of 86% and 100% in sheep and goats, respectively. More than 90% of camel hydatid cysts were fertile. The possible role of camels in the transmission of CE in Libya is discussed.

Prevalence of hydatidosis and fertility of hydatid cysts in sheep in Kirikkale, Turkey

2003 ◽  
Vol 51 (2) ◽  
pp. 181-187 ◽  
Author(s):  
K. Yildiz ◽  
S. Gurcan
Keyword(s):  
Life Cycle ◽  
Echinococcus Granulosus ◽  
Fertility Rate ◽  
Hydatid Cysts ◽  
Liver Cysts ◽  
Lung Cysts ◽  
The Mean ◽  
The Difference

This study was conducted in order to determine the prevalence and fertility of hydatid cysts in sheep in Kirikkale, Turkey. A total of 3.2% of 553 lambs and 50.9% of 1320 adults were found to be infected with hydatid cysts. The most common locations of cysts were in the liver and lung. Liver cysts tended to be more fertile than lung cysts (81.53% v. 76.47%), though the difference was not significant. The mean number of viable protoscoleces in the liver and lung cysts were 12,400 and 5,800, respectively. In general, 1-10 cysts were found in liver (51.8%) and lung (64.7%). The findings of this study indicate that hydatid cysts are common in sheep and the fertility rate of cysts is quite high. Sheep play an important role in the life cycle of Echinococcus granulosus in this region.

Metacestodes of moose, Alces alces, of the Chapleau Crown Game Preserve, Ontario

1979 ◽  
Vol 57 (8) ◽  
pp. 1619-1623 ◽  
Author(s):  
E. M. Addison ◽  
A. Fyvie ◽  
F. J. Johnson
Keyword(s):  
Echinococcus Granulosus ◽  
Lung Tissue ◽  
Physical Condition ◽  
Alces Alces ◽  
Age Groups ◽  
Hydatid Cysts ◽  
Intensity Of Infection ◽  
Taenia Hydatigena ◽  
Apparent Relationship

Lungs, liver, spleen, heart, and kidneys of moose, Alces alces, collected from 1963 to 1965 in the Chapleau Crown Game Preserve of northeastern Ontario were examined for parasites. Thirty-eight of 51 moose (75%) were infected with metacestodes of Taenia hydatigena Pallas, 1766; 40 of 54 (74%) with Taenia krabbei Moniez, 1879; and 36 of 54 (67%) with Echinococcus granulosus (Batsch, 1786). Twenty-two of 51 (43%) moose harboured all three species. Each species was more prevalent in older moose than in young moose and intensity of infections increased with the age of moose. Occurrence of small hydatid cysts decreased and large cysts increased with increasing age of moose. Of 1154 hydatid cysts, 95.3% were in lung tissue, 3.6% in liver, 0.9% in spleen, and 1 cyst (0.1%) was recovered from each of heart and kidney. Degenerate cysticerci of T. hydatigena and T. krabbei were observed in all age groups of moose. There was no apparent relationship between intensity of infection with metacestodes and physical condition of moose.

Experimental Echinococcus granulosus infection in mice: immunocytochemical analysis of lymphocyte populations in local lymphoid infections during early infection

Parasitology ◽  
1987 ◽  
Vol 94 (3) ◽  
pp. 523-532 ◽  
Author(s):  
Eleanor M. Riley ◽  
J. B. Dixon
Keyword(s):  
Lymph Nodes ◽  
Echinococcus Granulosus ◽  
Post Infection ◽  
Potential Role ◽  
Lymphocyte Subsets ◽  
Suppressor Cells ◽  
Lymphocyte Populations ◽  
Draining Lymph Nodes ◽  
T Suppressor Cells

The influence of subcutaneous infection with protoscoleces of Echinococcus granulosus on the distribution of lymphocyte subsets in draining lymph nodes has been evaluated by immunocytochemical labelling of lymphocyte surface antigens. These studies reveal marked expansion of paracortical Thy-1 +, Lyt-1 + cells and moderate proliferation of surface immunoglobulin-bearing B-cells immediately after infection. The Lyt-1 +:Lyt-2 + ratio decreases rapidly during the first 21 days post-infection and remains below unity until at least 12 weeks post-infection due to severe depletion of Lyt-1 + cells in draining lymph nodes and a significant increase in the percentage of Lyt-2 + cells. The potential role of these Lyt-1 ∓, 2 + (putative T-suppressor) cells in regulation of the anti-parasite immune response and mediation of generalized immunosuppression is discussed in the light of evidence of inhibition of anti-parasite immunity in infected mice.

scholarly journals CT Scanning in Identification of Sheep Cystic Echinococcosis

2017 ◽  
Vol 2017 ◽  
pp. 1-6
Author(s):  
Rui Mao ◽  
Hongzhi Qi ◽  
Lei Pei ◽  
Jie Hao ◽  
Jian Dong ◽  
...  
Keyword(s):  
Ct Scan ◽  
Cystic Echinococcosis ◽  
Ct Scanning ◽  
Lung Infection ◽  
Liver Cyst ◽  
Hydatid Cysts ◽  
Liver Cysts ◽  
Lung Cysts ◽  
Suitable Tool ◽  
Cystic Hydatid

Objective. We aim to determine the efficiency of CT in identification of cystic echinococcosis in sheep. Methods. Fifty-three sheep with liver cysts confirmed by ultrasonography were subject to CT scan to evaluate the number, size, and type of the cysts in liver and lung, confirmed using necropsy. The correlation of numbers between liver cysts and lung cysts was calculated using Pearson analysis. Results. Necropsy indicated a 98% consensus on size, location, number, and activity compared with CT scan. The viable cysts were 53.1% and 50.6% in the liver and lung, respectively. Among the cysts in liver, 35.5%, 9.5%, 5.7%, 10.2%, and 39.1% were Types CE1, CE2, CE3, CE4, and CE5, respectively. The cysts in the lungs, 17.4%, 26.9%, 12.1%, 11.6%, and 32.1%, were Types CE1, CE2, CE3, CE4, and CE5, respectively. A significant correlation was noticed between the number of cysts in liver and those in lung (R=0.770, P<0.001). Conclusions. CT scan is a suitable tool in determining the size and type of cystic hydatid cysts in both liver and lung of sheep. A significant correlation was noticed between the numbers in liver and lung, indicating that lung infection was likely due to the expansion of liver cyst burden pressure.

scholarly journals Establishing infection with Echinococcus granulosus hydatid cyst From Bovine origin in dogs

2018 ◽  
pp. 77-82
Author(s):  
Nadia,A.Ali , M.Magzob , Elmalik , Khitma,H.
Keyword(s):  
Echinococcus Granulosus ◽  
Post Mortem ◽  
Hydatid Cysts ◽  
Intermediate Hosts ◽  
Patent Period ◽  
Faecal Examination ◽  
Successful Transmission ◽  
Transmission Cycle ◽  
Worm Recovery

Establishing infection with Echinococcus granulosus had often created a challenge where by the actual role of the different Intermediate hosts could not be precisely determined. This study was consequently planned to examine the efficiency of cattle as intermediate hosts in the transmission of E. granulosus to canine final hosts. A modified procedure was followed where dogs were fed whole viable hydatid cysts as compared to viable protoscoleces obtained from hydatid sand mixed with meat. Successful transmission was attained as indicated by the presence of ova at faecal examination and adult worm recovery at post – mortem examination. The pre-patent period ranged between 30 – 42 days. It was apparent that the non capsulated protoscoleces were defected to the extend that they could not develop to maturity in the dog’s viscera. This modification needs to be applied to verify the efficiency of different intermediate hosts in the transmission cycle of Echinococcosis.

The role of native domestic animals in the dissemination of Echinococcus infection among dogs in the State of Kuwait

1976 ◽  
Vol 50 (4) ◽  
pp. 275-280 ◽  
Author(s):  
Kazem Behbehani ◽  
Osama Hassounah
Keyword(s):  
Life Cycle ◽  
Echinococcus Granulosus ◽  
Domestic Animals ◽  
The State ◽  
Hydatid Cysts ◽  
The Government ◽  
The State Of Kuwait

ABSTRACTInfection with hydatid cysts of domestic animals slaughtered by private individuals and at the Government Central Slaughterhouse is recorded. Both fertile and non-fertile cysts were seen in the infected animals. The home slaughtered sheep seems to play an important role in the dissemination of the parasite and the life cycle of Echinococcus granulosus in the State of Kuwait is assumed to be sheep—dog—sheep.

POPDC proteins and cardiac function

2019 ◽  
Vol 47 (5) ◽  
pp. 1393-1404 ◽  
Author(s):  
Thomas Brand
Keyword(s):  
Potential Role ◽  
Striated Muscle ◽  
Short Review ◽  
Effector Proteins ◽  
Muscle Disease ◽  
Disease Genes ◽  
Protein Protein Interaction ◽  
Interaction Partners ◽  
And Function

Abstract The Popeye domain-containing gene family encodes a novel class of cAMP effector proteins in striated muscle tissue. In this short review, we first introduce the protein family and discuss their structure and function with an emphasis on their role in cyclic AMP signalling. Another focus of this review is the recently discovered role of POPDC genes as striated muscle disease genes, which have been associated with cardiac arrhythmia and muscular dystrophy. The pathological phenotypes observed in patients will be compared with phenotypes present in null and knockin mutations in zebrafish and mouse. A number of protein–protein interaction partners have been discovered and the potential role of POPDC proteins to control the subcellular localization and function of these interacting proteins will be discussed. Finally, we outline several areas, where research is urgently needed.

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