692 results on '"dicrocoeliosis"'
Search Results
152. Prevalence of hydatid cyst, Fasciola spp. and Dicrocoelium dendriticum in cattle and sheep slaughtered in Sabzevar abattoir, Iran.
- Author
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Shamsi, Laya, Samaeinasab, Saeed, and Samani, Sulmaz Tarakameh
- Published
- 2020
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153. Unveiling the therapeutic journey of snail mucus in diabetic wound care.
- Author
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Mishra R, Singh TG, Bhatia R, and Awasthi A
- Abstract
A diabetic wound (DW) is an alteration in the highly orchestrated physiological sequence of wound healing especially, the inflammatory phase. These alterations result in the generation of oxidative stress and inflammation at the injury site. This further leads to the impairment in the angiogenesis, extracellular matrix, collagen deposition, and re-epithelialization. Additionally, in DW there is the presence of microbial load which makes the wound worse and impedes the wound healing cycle. There are several treatment strategies which have been employed by the researchers to mitigate the aforementioned challenges. However, they failed to address the multifactorial pathogenic nature of the disease. Looking at the severity of the disease researchers have explored snail mucus and its components such as achacin, allantoin, elastin, collagen, and glycosaminoglycan due to its multiple therapeutic potentials; however, glycosaminoglycan (GAGs) is very important among all because they accelerate the wound-healing process by promoting reepithelialization, vascularization, granulation, and angiogenesis at the site of injury. Despite its varied applications, the field of snail mucus in wound healing is still underexplored. The present review aims to highlight the role of snail mucus in diabetic wound healing, the advantages of snail mucus over conventional treatments, the therapeutic potential of snail mucus, and the application of snail mucus in DW. Additionally, clinical trials, patents, structural variations, and advancements in snail mucus characterization have been covered in the article., Competing Interests: Declarations. Competing interests: The authors declare no competing interests., (© 2025. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
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- 2025
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154. Validation of deep amplicon sequencing of Dicrocoelium in small ruminants from Northern regions of Pakistan.
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Khan, Muhammad Asim, Afshan, Kiran, Firasat, Sabika, Abbas, Muhammad, Sargison, Neil D., Betson, Martha, and Chaudhry, Umer
- Subjects
PRODUCTION losses ,RUMINANTS ,GENETIC distance ,DRUG resistance ,LIVESTOCK losses - Abstract
Dicrocoelium lancet flukes cause significant production loss in ruminant livestock. Although co-infection with multiple Dicrocoelium species within a host is common, techniques for studying the composition of these complex parasite communities are lacking. The pathogenicity, epidemiology, and therapeutic susceptibility of different helminth species vary, and little is known about the interactions that take place between co-infecting species and their hosts. Here, we describe the first applicationof metabarcoding deep amplicon sequencing method to studythe Dicrocoelium species in sheep and goats. First, rDNA ITS-2 sequences of four Dicrocoelium species (Dicrocoelium dendriticum, Dicrocoelium hospes, Dicrocoelium orientalis, and Dicrocoelium chinensis) were extracted from the NCBI public database. Phylogenetic analysis revealed separate clades of Dicrocoelium species; hence, molecular differentiation between each species is possible in co-infections. Second, 202 flukes belonging to seventeen host populations (morphologically verified as belonging to the Dicrocoelium genus) were evaluated to determine the deep amplicon sequencing read threshold of an individual fluke for each of the four species. The accuracy of the method in proportional quantification of samples collected from single hosts was further assessed. Overall, 198 (98.01%) flukes were confirmed as D. dendriticum and 1.98% produced no reads. The comparison of genetic distances between rDNA ITS-2 revealed 86% to 98% identity between the Dicrocoelium species. Phylogenetic analysis demonstrated a distinct clustering of species, apart from D. orientalis and D. chinensis, which sit very close to each other in a single large clade whereas D. hospes and D. dendriticum are separated into their own clade. In conclusion each sample was identified as D. dendriticum based on the proportion of MiSeq reads and validated the presence of this group of parasites in the Gilgit Baltistan and Khyber Pakhtunkhwa provinces of Pakistan. The metabarcoding deep amplicon sequencing technology and bioinformatics pathway have several potential applications, including species interactions during co-infections, identifying the host and geographical distribution of Dicrocoelium in livestock, drug therapy response evaluation and understanding of the emergence and spread of drug resistance. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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155. Torsion of the spiral colon in cattle– a retrospective analysis of 58 cases.
- Author
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Braun, Ueli, Gerspach, Christian, Volz, Claudia, Hilbe, Monika, and Nuss, Karl
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LARGE intestine ,COLON (Anatomy) ,SMALL intestine ,TORSION ,INTESTINAL abnormalities ,RECTUM ,SEMEN - Abstract
Background: Torsion of the spiral colon (TSC) describes twisting of the spiral colon around its mesentery. The present study reviewed the medical records of 58 cows and heifers with TSC and described the findings, treatment and outcome. Results: All cases had an abnormal general condition, and the main vital sign abnormalities were tachycardia (72.4%), tachypnoea (67.2%) and decreased rectal temperature (51.8%). Signs of colic were seen in 62.1% of the cows. The most common intestinal abnormalities were an empty or almost empty rectum (96.6%), reduced or absent rumen motility (93.2%), positive ballottement and/or percussion and simultaneous auscultation on the right side of the abdomen (87.9%), reduced or absent intestinal motility (84.5%) and dilatation of the large intestines (spiral colon and/or caecum, 70.7%) diagnosed by transrectal palpation. The main biochemical changes were hypermagnesaemia (70.8%), hypocalcaemia (70.8%), and acidosis (66.7%). Haemoconcentration was found in 63.8%. The main ultrasonographic findings were reduced to absent small intestinal motility (83.3%), dilated small intestines (69.6%) and ascites (66.7%). The spiral colon was dilated in 44.0% of the cows and the caecum in 24.0%. The actual site of torsion could not be visualised. Based on the clinical findings, TSC was diagnosed in 22.4% and caecal dilatation in 50.0% of the cows. A tentative diagnosis of small intestinal ileus was made in another 10.3% of the cows, and a definitive diagnosis of small intestinal ileus in 17.3%. Fifty-three cows underwent right flank laparotomy, and the TSC could be reduced in 26. Twenty-six of the 58 (44.8%) cows were discharged and 32 (55.2%) were euthanased before, during or after surgery. Conclusions: Acute illness, a sparse amount of faeces in the rectum and dilated spiral colon and caecum are characteristic findings of TSC. The final diagnosis often relies on the surgical or postmortem findings. Cattle with TSC should be treated surgically without delay. The prognosis is guarded with a survival rate of 44.8%. [ABSTRACT FROM AUTHOR]
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- 2024
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156. Pulmonary and Gastrointestinal Parasitic Infections in Small Ruminant Autochthonous Breeds from Centre Region of Portugal—A Cross Sectional Study.
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Pereira, Maria Aires, Vila-Viçosa, Maria João, Coelho, Catarina, Santos, Carla, Esteves, Fernando, Cruz, Rita, Gomes, Liliana, Henriques, Diogo, Vala, Helena, Nóbrega, Carmen, Mega, Ana Cristina, Melo, Carolina de, Malva, Madalena, Braguez, Joana, and Mateus, Teresa Letra
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PARASITIC diseases ,RUMINANTS ,GOATS ,ANIMAL health ,MEDICAL centers - Abstract
Simple Summary: The production of small ruminant autochthonous breeds in the Centre region of Portugal is practiced under grazing, exposing animals to parasitic infections. The main objective of this study was to estimate the prevalence of lungworm parasitic infection and identify risk factors to define appropriate control measures. Fecal samples of 203 goats and 208 sheep from 30 herds, located in three districts in the Centre region of Portugal, were collected and analyzed. The overall prevalence of lungworm infection was 57.7%, significantly higher in goats (95.6%) than in sheep (20.7%). The risk of lungworm infection was 29.7, 7.4, or 8.7 times higher for sheep dewormed with albendazole, mebendazole plus closantel, or ivermectin plus clorsulon, respectively, than for those dewormed with eprinomectin. Additionally, the presence of gastrointestinal parasites was investigated in 307 fecal samples and an overall prevalence of infection of 86.3% was observed, also significantly higher in goats (93.2%) than in sheep (79.9%). Considering the high prevalence and the burden of lungworm parasitic infection, it is urgent to determine its economic impact and the repercussions in animal health in the Centre region of Portugal to establish appropriate therapeutic guidelines. The production of small ruminant autochthonous breeds in the Centre region of Portugal is practiced in a semi-extensive husbandry system, exposing animals to parasitic infections. The main objective of this study was to estimate the prevalence of lungworm infection and identify risk factors. Fecal samples of 203 goats and 208 sheep from 30 herds were collected per rectum and subjected to the modified Baermann test. The overall prevalence of infection was 57.7%, significantly higher in goats (95.6%) than in sheep (20.7%) (p < 0.001). According to the binary logistic regression model, sheep dewormed with albendazole, mebendazole plus closantel, or ivermectin plus clorsulon presented a risk of Protostrongylidae infection 29.702, 7.426, or 8.720 times higher, respectively, than those dewormed with eprinomectin. Additionally, the presence of gastrointestinal parasites was investigated in 307 fecal samples using Mini-FLOTAC
® . The overall prevalence of infection was 86.3%, also significantly higher in goats (93.2%) than in sheep (79.9%) (p < 0.001). Strongyle-type eggs were the most frequently identified, both in sheep (69.8%) and goats (87.8%), followed by Eimeria oocysts (40.3% in sheep and 68.9% in goats). Considering the high prevalence and the burden of lungworm parasitic infection, it is urgent to determine its economic impact and the repercussions in animal health in the Centre region of Portugal to establish appropriate therapeutic guidelines. [ABSTRACT FROM AUTHOR]- Published
- 2024
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157. Bovine fasciolosis in two Algerian slaughterhouses: Prevalence and assessment of liver suitability for human consumption.
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Mezali, Lynda, Nouichi, Siham, Bouabba, Saliha, Hettak, Kenza, Negab, Nadia, Kaddour, Rachid, and Dahmane, Amina
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FASCIOLIASIS ,INTRAHEPATIC bile ducts ,STAINS & staining (Microscopy) ,BILE ducts ,MEAT inspection ,LIVER - Abstract
Fasciolosis, a hepatobiliary distomatosis affecting domestic ruminants and incidentally humans, poses a threat to both animal and public health, leading to substantial economic losses. This study aimed to determine the prevalence of fasciolosis in cattle slaughtered in Tizi Ouzou, Algeria, and to describe the morphological and histological changes in the liver. A total of 376 bovine carcasses slaughtered between July 2018 and April 2019 underwent postmortem inspection, and corresponding livers were investigated for fasciolosis according to conventional meat inspection procedures. Twenty-six livers, found to be affected with fasciolosis, were sampled at five different sites for histopathological analysis using both hematoxylin-eosin (H&E) and Masson's trichrome stain methods. The overall prevalence was 6.9% (CI 4.4-9.5%). Gross changes related to bovine fasciolosis, including size, color, and consistency abnormalities as well as the worms' migratory path and distomian cholangitis, were not observed in the majority of the affected livers. Additionally, the infestation degree was low in 56.5% of the fasciolosis-affected livers. In contrast, numerous histopathological damages, including infiltrations, degeneration, necrosis, and fibrosis, were revealed in hepatic parenchyma, connective septa, portal region, and bile ducts throughout all the sampled liver tissues (P> 0.05). Hepatic involvement observed in both the acinus and portal lobule throughout their respective zones was quantified with a degree ranging from 25% to 100% (P> 0.05). Fasciolosis, a common disease in cattle slaughtered in Tizi Ouzou, induces irreversible hepatic tissue damage, thereby compromising the organoleptic and nutritional value of the liver, making it unfit for human consumption. [ABSTRACT FROM AUTHOR]
- Published
- 2024
158. Small intestinal volvulus in 47 cows.
- Author
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Braun, Ueli, Gerspach, Christian, Volz, Claudia, Hilbe, Monika, and Nuss, Karl
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COWS ,VOLVULUS ,INTESTINES ,SMALL intestine ,RUMEN fermentation ,SYMPTOMS ,UREA - Abstract
Copyright of Canadian Veterinary Journal / Revue Vétérinaire Canadienne is the property of Canadian Veterinary Medical Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
159. Determination of Malondialdehyde, Nitric Oxide, Reduced Glutathione, Sialic Acid and Ceruloplasmin Levels in Sheep Liver Tissue With Hydatic Cyst.
- Author
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KIZILTEPE, Semistan, OKULMUS, Caglar, MERHAN, Oguz, MOR, Neriman, and UZLU, Erdogan
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MALONDIALDEHYDE ,NITRIC oxide ,GLUTATHIONE ,SIALIC acids ,ECHINOCOCCOSIS - Abstract
Copyright of Kocatepe Veterinary Journal / Kocatepe Veteriner Dergisi is the property of Afyon Kocatepe University, Faculty of Veterinary Medicine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
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160. Characterization of Dicrocoelium dendriticum isolates from small ruminants in Shaanxi Province, north-western China, using internal transcribed spacers of nuclear ribosomal DNA.
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Bian, Q.Q., Zhao, G.H., Jia, Y.Q., Fang, Y.Q., Cheng, W.Y., Du, S.Z., Ma, X.T., and Lin, Q.
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RUMINANTS ,RIBOSOMAL DNA ,BIOLOGICAL variation - Abstract
The genetic variations in internal transcribed spacers (ITS) spanning ITS-1, 5.8S and ITS-2 rDNA of Dicrocoelium dendriticum, isolated from sheep and goats in four geographical regions in Shaanxi province, were examined. The lengths of ITS-1, 5.8S and ITS-2 rDNA sequences for D. dendriticum were 749 bp, 161 bp and 234 bp, respectively. Intra-specific sequence variations of D. dendriticum were 0–0.5% for ITS-1 and 0–1.3% for ITS-2 rDNA, while the inter-specific variations among species in genus Dicrocoelium in ITS-2 rDNA were 3.4–12.3%. Phylogenetic analysis based on sequences of ITS-2 rDNA showed that all D. dendriticum isolates in the present study were grouped with reference D. dendriticum isolates from sheep and goats, and D. dendriticum isolates from cattle and Japanese serow were clustered in a sister clade. However, the phylogenetic tree could not reveal geographically genetic relationships of D. dendriticum isolates in different origins and hosts. These findings provided basic information for further study of molecular epidemiology and control of D. dendriticum infection in Shaanxi province as well as in the world. [ABSTRACT FROM PUBLISHER]
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- 2015
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161. Genetic variability among Dicrocoelium dendriticum isolates from different regions in Shaanxi Province, China revealed by sequences of three mitochondrial genes.
- Author
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Zhao, Guang-Hui, Bian, Qing-Qing, Ren, Wan-Xin, Jia, Yan-Qing, Cheng, Wen-Yu, Fang, Yan-Qin, Song, Jun-Ke, and Lin, Qing
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MITOCHONDRIAL DNA analysis ,CYTOCHROME oxidase ,NADH dehydrogenase ,PLANT phylogeny ,TREES - Abstract
The genetic variations in three mitochondrial DNA (mtDNA) regions, namely portion of cytochrome c oxidase subunit 1 (p cox1), NADH dehydrogenase subunit 1 (p nad1) and cytochrome b (p cytb), were examined for Dicrocoelium dendriticum samples isolated from different origins in Shaanxi Province, northwestern China. The intra-specific sequence differences within D. dendriticum samples were 0-0.52% for p cox1, 0-0.73% for p nad1 and 0-0.58% for p cytb. Phylogenetic analyses based on combined sequences of three mtDNA showed that all D. dendriticum samples were clustered together in same clade of Paragonimus westermani. But the phylogenetic trees could not reveal geographically genetic relationships of D. dendriticum isolates in this province. These findings will provide basic information for further study of molecular epidemiology and control of D. dendriticum infection in this province as well as in China. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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162. Hepatogenous photosensitisation in Scottish sheep casued by Dicrocoelium dendriticum
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Sargison, N.D., Baird, G.J., Sotiraki, S., Gilleard, J.S., and Busin, V.
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PHOTOSENSITIZATION , *WEIGHT loss , *DICROCOELIASIS in animals , *SHEEP diseases , *ANTHELMINTICS - Abstract
Abstract: Dicrocoeliosis was identified as the probable predisposing cause of weight loss and hepatogenous photosensitisation affecting half of a group of 14month-old ewe lambs on a farm on the Inner Hebridean island of Coll. Oral dosing of the ewe lambs with 15mg/kg albendazole only achieved a 79.2% reduction in Dicrocoelium dendriticum egg count, 21day post treatment. Thus, this report of dicrocoeliosis differs from the disease that occurs elsewhere, both in the severity and nature of its clinical signs, and in the response of the parasite to anthelmintic drug treatment. These differences could indicate the existence of a genetically divergent D. dendriticum population, which may have evolved within the unique and isolated biotope afforded by the machair on the island of Coll. Better understanding of these factors is a prerequisite for effective and sustainable disease control. [Copyright &y& Elsevier]
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- 2012
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163. 枝双腔吸虫的形态学鉴定及分子进化研究.
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高俊峰, 高忠燕, 王丽坤, 张显光, 崔宇超, and 侯美如
- Abstract
Copyright of Chinese Journal of Preventive Veterinary Medicine / Zhongguo Yufang Shouyi Xuebao is the property of Chinese Journal of Preventive Veterinary Medicine Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2019
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- View/download PDF
164. Prevalence of mixed trematode infections in an abattoir receiving cattle from northern Portugal and north-west Spain.
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Arias, M., Lomba, C., Dacal, V., Vázquez, L., Pedreira, J., Francisco, I., Piñeiro, P ., Cazapal-Monteiro, C., Suárez, J. L., Díez-Baños, P ., Morrondo, P ., Sánchez-Andrade, R., and Paz-Silva, A.
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SLAUGHTERING , *MEAT industry , *ANIMALS , *TREMATODA - Abstract
Between February 2007 and January 2009, a total of 776 slaughtered animals were examined for the presence of Trematoda in the liver, gall bladder, oesophagus and stomach (rumen and reticulum). Data collected were analysed by the age and breed of the animals. The percentage of cattle from which Trematoda were found was 38 per cent (95 per cent confidence interval [CI] 35 to 41 per cent); 28 per cent (95 per cent CI 25 to 31 per cent) had Fasciola hepatica, 12 per cent (95 per cent CI 10 to 14 per cent) Calicophoron daubneyi and 6 per cent (95 per cent CI 4 to 8 per cent) Dicrocoelium species. A significantly high prevalence of fasciolosis and dicrocoeliosis was observed in cattle over 10 years of age. Autochthonous Rubia Gallega cattle had the highest prevalence of fasciolosis and crossbred cattle had the highest prevalence of dicrocoeliosis (P<0.05). Twenty per cent (95 per cent CI 15 to 25 per cent) of the cattle positive for Fasciola also had Calicophoron species; 10 per cent (95 per cent CI 6 to 14 per cent) also had small liver flukes (Dicrocoelium species). [ABSTRACT FROM AUTHOR]
- Published
- 2011
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165. In vitro oxidative metabolism of xenobiotics in the lancet fluke ( Dicrocoelium dendriticum) and the effects of albendazole and albendazole sulphoxide ex vivo.
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Bártíková, Hana, Vokřál, Ivan, Skálová, Lenka, Lamka, Jiří, and Szotáková, Barbora
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XENOBIOTICS ,ALBENDAZOLE ,ANTHELMINTICS ,GLUTATHIONE ,MONOOXYGENASES - Abstract
1. Dicrocoeliosis, a parasitic infection caused by Dicrocoelium dendriticum (lancet fluke), is often treated by the anthelmintic drug albendazole (ABZ). In the lancet fluke, ABZ metabolism via enzymatic sulphoxidation was found, but no information about ABZ oxidases has been available. 2. The aim of our project was to find out which enzyme of the lancet fluke is responsible for ABZ sulphoxidation, as well as to assay the activities of oxidation enzymes. We also studied whether ex vivo 24-h exposures of flukes to ABZ or its sulphoxide (ABZ.SO) would alter ABZ sulphoxidation rate and the activities of tested enzymes. 3. In subcellular fractions from flukes, marked activities of peroxidase (Px), glutathione Px (GPx), catalase (CAT), superoxide dismutase, and thioredoxin glutathione reductase were found. Using specific inhibitors, the participation of flavine monooxygenases in ABZ-oxidation was found. 4. The ex vivo exposition of flukes to ABZ or ABZ.SO did not change the rate of ABZ sulphoxidation in vitro, but the ex vivo exposure of flukes to anthelmintics increased Px, CAT, and GPx activity. The modulation of these enzyme activities after ABZ or ABZ.SO exposition may be characteristic of the parasite's protective mechanism against oxidative stress caused by drug treatment. [ABSTRACT FROM AUTHOR]
- Published
- 2010
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166. Preliminary protective capacity study of a Dicrocoelium dendriticum antigenic protein in hamsters.
- Author
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C. González-Lanza, M. Manga-González, and B. Revilla-Nuín
- Abstract
Abstract The purpose of this study was to evaluate the protective capacity of 130 kDa Dicrocoelium dendriticum protein in hamsters experimentally infected with this parasite. Forty hamsters divided into four groups of ten animals each were used: G1 (control), G2 (infected), G3 (immunized with Freund’s adjuvant and infected), G4 (130 kDa protein vaccinated + adjuvant and infected). Infection with 40 metacercariae/hamster was carried out 4 weeks after the last immunization. Parasitological studies [number of eggs per gram (epg) and worm burden] and biochemical parameters (total proteins, albumin, and total bilirubin), hepatic enzymes [aspartate aminotransferase (AST) and alanine aminotransferase (ALT)], and total IgG levels were determined. A reduction in epg in G3 and G4 was observed 16 weeks postinfection with the higher reduction percentage in the latter (25.2%). No statistically significant differences were detected in the number of recovered worms among groups, although the mean was slightly less in G4 (12.2±2.08, mean±SE) than in G2 (15.4±2.90). In G4, global protection was 20.9% and an increase in AST and ALT levels was observed. Total IgG levels were similar in the three infected groups. The protection obtained was inadequate, so the antigen dose, immunization–infection period, adjuvants, and immunization route must be optimized. [ABSTRACT FROM AUTHOR]
- Published
- 2006
167. A retrospective survey of liver fluke disease in livestock based on abattoir data in Shiraz, south of Iran
- Author
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Ansari-Lari, Maryam and Moazzeni, Mohammad
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LIVER flukes , *FASCIOLA , *SLAUGHTERING ,CATTLE inspection - Abstract
Abstract: Meat-inspection records in an abattoir located in the Fars province (southern part of Iran) from 20 March 1999 to 19 March 2004 were used to determine the prevalence and long-term trend of liver fluke disease in sheep, cattle and goats in the region. A total of 844,039 animals (cattle 131,716; sheep 577,090; goats 135,233) slaughtered in the 5-year period and overall 34,856 (4.1%) livers were condemned. Fasciolosis and dicrocoeliosis were responsible for 54 and 21% of total liver condemnations, respectively. The prevalence of liver condemnations due to fasciolosis was decreased from 3.89, 3.20 and 2.63% in 1999–2000 to 1.07, 0.59 and 0.24% in 2003–2004 for cattle, sheep and goats, respectively. The corresponding features for dicrocoeliosis were similar, declining from 1.47, 1.76 and 2.10% in 1999–2000 to 0.69, 0.34 and 0.25% in 2003–2004, respectively. Drought climatic conditions in conjunction with a greater awareness among farmers could be responsible factors. [Copyright &y& Elsevier]
- Published
- 2006
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168. Impairment of drug metabolizing system in experimental dicroceliosis
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Sánchez Campos, S., López, P., Campo, Raquel, Tuñón, M. J., González, P., Manga-González, M. Yolanda, González-Gallego, Javier, Sánchez Campos, S., López, P., Campo, Raquel, Tuñón, M. J., González, P., Manga-González, M. Yolanda, and González-Gallego, Javier
- Abstract
Dicrocoeliosis is a zoonotic disease caused by the liver fluke Dicrocoelium dendriticum, for which humans act as an accidental host. Cases of dicrocoeliosis both from Europe and the United States have been reported...
- Published
- 1994
169. Efficacy of a single-dose albendazole against lancet liver fluke Dicrocoelium dendriticum and liver enzymes activity in naturally infected sheep.
- Author
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Königová, Alžbeta, Burcáková, Ľudmila, Babják, Michal, Dolinská, Michaela Urda, Kostecká, Zuzana, Šimková, Jana, Kremeň, Jozef, Kuzmina, Tetiana A., and Várady, Marián
- Subjects
- *
LIVER enzymes , *LIVER flukes , *ASPARTATE aminotransferase , *ALBENDAZOLE , *SHEEP , *ANIMAL welfare , *GAMMA-glutamyltransferase - Abstract
Infections with D. dendriticum are distributed worldwide and mostly associated with ruminant livestock. Depending on the length and strength of the infection it can be manifested with losses in milk production, reductions in milk and wool quality, decreased weight gains, reproductive performance and poor carcass quality. The objective of this study was to determine the efficacy of albendazole (ABZ) against the lancet liver fluke Dicrocoelium dendriticum in naturally infected sheep using parasitological methods. Twenty-four sheep were divided into four groups: two untreated control groups (C 1 , C 2) and two treated groups (T 1 , T 2), with six animals in each group. The sheep in the treated groups were administered a single oral dose (15 mg/kg bwt) of ABZ suspension. After ABZ treatment the animals were slaughtered on Day 14 (groups C 1 , T 1) and Day 30 (groups C 2 , T 2) and were necropsied. Coprological therapeutic ABZ efficacy reached 92.4% on Day 14 (P < 0.001) and 88.5% on Day 30 (P < 0.001). On Day 30, the serum activities of hepatic and cholestatic enzymes including serological analysis of total protein concentration (TP) and protein fractions were evaluated. Significant decrease of aspartate aminotransferase (AST) (P < 0.01) and gamma-glutamyltransferase (GGT) (P < 0.05) activity by 36.9% and 34.6%, respectively, were detected for sheep in T 2 group. These enzymes showed a strong positive correlation to fluke burden: AST (r = 0.654) and GGT (r = 0.768), respectively (P < 0.05). Additionally, the electrophoretic analysis of serum total protein and protein fraction concentrations revealed minimal hypoproteinemia and hyperalbuminemia after ABZ treatment. The decrease of liver enzyme activities and their correlation with fluke burden may indicate recovery of hepatocellular and biliary damage following the reduction of fluke burdens after ABZ therapy. A decline in AST and GGT activity could serve as a valuable adjunct bioindicator of liver damage and fluke reduction after treatment of dicrocoeliosis in naturally infected sheep. • Albendazole treatment with a single oral dose decreases sheep infection with Dicrocoelium dendriticum. • Alterations of biochemical parameters were observed in sheep after albendazole treatment. • Liver enzymes AST and GGT were identified as potential bioindicators of liver damage. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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170. Parasitological and molecular investigation of consequences of raw meat feeding (BARF) in dogs and cats: implications for other pets living nearby.
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Tuska-Szalay, Barbara, Papdeák, Viktória, Vizi, Zsuzsanna, Takács, Nóra, and Hornok, Sándor
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PETS ,NEOSPORA caninum ,FASCIOLA hepatica ,CATS ,DOGS ,DOG parasites ,CAT parasites ,FLEA control - Abstract
Considering the original nature of carnivorism among dogs and cats, nowadays these pets are increasingly fed BARF (Biologically Appropriate Raw Food/Bone And Raw Food) diet to improve their health conditions. However, this diet may also carry health risks, such as vitamin or mineral deficiencies, and infection with pathogens including parasites. In our study, fecal samples of 89 pet animals kept on BARF diet were subjected to coprological examination followed by molecular analyses. Six of them shed eggs of Dicrocoelium dendriticum. This result was confirmed with PCR and sequencing, and in one case, the DNA of Fasciola hepatica was also demonstrated. In addition, oocysts of Cystoisospora canis, a Cystoisospora ohioensis-like sp. and Eimeria stiedai, as well as sporocysts of a Sarcocystis sp. were also detected. All samples were negative for Neospora caninum and Toxoplasma gondii. In conclusion, no evidence was found for the infection of BARF-fed dogs and cats with parasites that are usually associated with this diet and considered as clinico-pathological risk factors for these pets themselves (e.g., N. caninum, T. gondii). However, fluke eggs (probably originating from ruminants) and oocysts of E. stiedai (from rabbit liver in the food) were demonstrated as pseudoparasites. These species are usually not considered among parasite-associated risks of BARF-feeding, implying that other animals living near BARF-fed pets are neglected in this context. However, where intermediate hosts of D. dendriticum occur in urban areas, BARF-feeding may indirectly affect later other dogs and cats. It was also shown here that BARF-feeding may contribute to the contamination of the environment with E. stiedai oocysts, thus increasing the risks of biliary coccidiosis in nearby living pet rabbits that would otherwise not have access to oocysts of E. stiedai. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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171. The Potential of Edible Insects as a Safe, Palatable, and Sustainable Food Source in the European Union.
- Author
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Conway, Ann, Jaiswal, Swarna, and Jaiswal, Amit K.
- Subjects
EDIBLE insects ,INSECT food ,ENTOMOPHAGY ,AGRICULTURE ,ORTHOPTERA - Abstract
Entomophagy describes the practice of eating insects. Insects are considered extremely nutritious in many countries worldwide. However, there is a lethargic uptake of this practice in Europe where consuming insects and insect-based foodstuffs is often regarded with disgust. Such perceptions and concerns are often due to a lack of exposure to and availability of food-grade insects as a food source and are often driven by neophobia and cultural norms. In recent years, due to accelerating climate change, an urgency to develop alternate safe and sustainable food-sources has emerged. There are currently over 2000 species of insects approved by the World Health Organization as safe to eat and suitable for human consumption. This review article provides an updated overview of the potential of edible insects as a safe, palatable, and sustainable food source. Furthermore, legislation, food safety issues, and the nutritional composition of invertebrates including, but not limited, to crickets (Orthoptera) and mealworms (Coleoptera) are also explored within this review. This article also discusses insect farming methods and the potential upscaling of the industry with regard to future prospects for insects as a sustainable food source. Finally, the topics addressed in this article are areas of potential concern to current and future consumers of edible insects. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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- View/download PDF
172. Pivotal role of permeability-glycoprotein in absorption of praziquantel into Dicrocoelium dendriticum parasite.
- Author
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Abedi, Soodeh, Tabari, Mohaddeseh Abouhosseini, and Youssefi, Mohammad Reza
- Abstract
Dicrocoelium dendriticum affects the livers of ruminants and causes several deleterious effects on animal health status. The aim of this study was to investigate the role of permeability-glycoprotein (P-gp) in absorption of praziquantel (PZQ) into D. dendriticum flukes by co-incubation with verapamil (VPL), an inhibitor of P-gp, under in vitro conditions. Mature flukes of D. dendriticum were collected from naturally infected sheep livers. The flukes were incubated with different concentrations of PZQ and VPL (50 and 100 μg/ml) in culture media and after several times of exposure (2, 6, 12, and 24 h), the concentration of PZQ absorbed in the parasites was measured by high-performance liquid chromatography. At 2-h post-incubation, the highest concentration of PZQ was noted as 0.92 µg/ml in the flukes treated with 100 μg/ml of each PZQ and VPL. After 24-h of exposure, VPL at all tested concentrations resulted in significant increase in absorption of PZQ into the parasite. Co-incubation of lancet flukes with VPL and PZQ roughly doubled the absorption of PZQ into them. Results of tegumental structures analysis by light microscopy confirmed higher efficacy of combination of VPL and PZQ. In conclusion, co-administration of VPL, especially at the concentration of 100 μg/ml, was able to increase PZQ uptake in Dicrocoelium flukes at all time points of the study. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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173. In vitro Anthelmintic Activity of Vitis vinifera Leaf Extract on Dicrocoelium dendriticum.
- Author
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Mares, Mohammed M., Abdel-Gaber, Rewaida, Al-Quraishy, Saleh, and Ibrahim, Khalid Elfaki
- Subjects
FASCIOLIASIS ,VITIS vinifera ,BILE ducts ,PATHOLOGICAL physiology - Abstract
Background: Helminth parasites of ruminants are a major factor limiting animal production in many parts of the world. Dicrocoelium dendriticum, causes liver fluke disease in ruminants and is of zoonotic and economic importance. D. dendriticum lives in the adult stage, in the bile ducts and gallbladders of cattle, sheep, goats and pigs. Dicrocoeliasis causes severe pathological changes in the liver and bile system such as abscesses, granulomas and fibrosis. The objective of this study was to identify the anthelmintic activity of Vitis vinifera leaf extract against D. dendriticum and comparison with some drugs used against internal parasites. Methods: A study was performed to evaluate the anthelmintic activity of the methanolic extract of V. vinifera leaf against D. dendriticum using an adult worm motility test. Six graduated concentrations of extract (25, 50, 75, 100, 125 and 150 mg/ml), were tested at different periods and changes over time in the viability of worms were registered for 2, 4 and 6 hr. Normal RPMI-1640 medium and Albendazole were used as negative and positive control, respectively. Result: A significant elevation in mean inhibition of adult worm motility beginning 2 h post-exposure with 150 mg/ml of V. vinifera leaf extract and Albendazole. After 4 h of the exposure time, Albendazole and concentrations of 125 and 150 mg/ml of the extract resulted in significantly higher inhibited motility compared to the remaining concentrations below 125 mg/ml. The lower concentration (25 mg/ml) was significantly more lethal than the negative control (RPMI-1640 medium) at 6 h of exposure. Within 6 h after exposure, concentrations of 100, 125 and 150 mg/ml of V. vinifera leaf extract were more effective against adult worms than the remaining concentrations below 100 mg/ml. As the concentration and duration of exposure increased, the mortality of adult worms and also increased death for all parasites (P<0.05). Each concentration damages the tegument and muscles of D. dendriticum. The increase in concentration is proportional to the increase in damage to the integument. The results of this investigation demonstrated the anthelmintic action of V. vinifera leaf extract. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
174. Testing on the Effectiveness and Biological Safety of New Granules Based on Oxyclozanide and Albendazole (Oxyclozal) in Mixed Invasion of Fascioliasis and Gastrointestinal Nematodes of Sheep.
- Author
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Mantaeva, S. Sh., Bittirov, I. A., and Bittirov, A. M.
- Published
- 2023
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- View/download PDF
175. A DNA probe for the detection of Dicrocoelium dendriticum in ants of Formica spp. and Lasius spp.
- Author
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Heussler, V., Kaufmann, H., Glaser, I., Ducommun, D., Müller, C., and Dobbelaere, D.
- Abstract
Repetitive DNA sequences present in the genome of Dicrocoelium dendriticum were identified by hybridization of genomic DNA that had been digested with different restriction enzymes with
32 P-labeled genomic D. dendriticum DNA. DNA fragments containing repetitive sequences were isolated from PstI-digested D.␣dendriticum DNA and were subcloned into a plasmid vector. Plasmids containing repetitive sequences were identified by colony hybridization. One of these plasmids, designated Ddr-IV, was isolated and used as a probe in further studies. Ddr-IV is specific for D. dendriticum since it does not hybridize to DNA isolated from other trematodes. In addition, Ddr-IV was capable of detecting D. dendriticum metacercariae in ants ( Formica cunicularia, F. rufibarbis, and Lasius sp.), which act as second intermediate hosts in the parasite's life cycle. Since metacercariae constitute the infectious stage of the parasite for grazing animals, Ddr-IV will provide a useful tool for epidemiology studies of dicrocoeliosis. [ABSTRACT FROM AUTHOR]- Published
- 1998
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176. INFESTATION WITH DICROCOELIUM DENDRITICUM - THE SMALL LIVER FLUKE - IN ANIMALS AND HUMAN INDIVIDUALS IN SWEDEN.
- Author
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BENGTSSON, ELIAS, HÄSSLER, LARS, HOLTENIUS, PAUL, NORDBRING, FOLKE, and THORÉN, GUNNAR
- Published
- 1968
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177. Genetic diversity and relationships of the liver fluke Fasciola hepatica (Trematoda) with native and introduced definitive and intermediate hosts.
- Author
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Vázquez AA, Sabourin E, Alda P, Leroy C, Leray C, Carron E, Mulero S, Caty C, Hasfia S, Boisseau M, Saugné L, Pineau O, Blanchon T, Alba A, Faugère D, Vittecoq M, and Hurtrez-Boussès S
- Subjects
- Animals, Cattle, Genetic Variation, Snails, Fasciola hepatica genetics, Fascioliasis epidemiology, Fascioliasis veterinary, Trematoda
- Abstract
Fasciolosis is a worldwide spread parasitosis mainly caused by the trematode Fasciola hepatica. This disease is particularly important for public health in tropical regions, but it can also affect the economies of many developed countries due to large infections in domestic animals. Although several studies have tried to understand the transmission by studying the prevalence of different host species, only a few have used population genetic approaches to understand the links between domestic and wildlife infections. Here, we present the results of such genetic approach combined with classical parasitological data (prevalence and intensity) by studying domestic and wild definitive hosts from Camargue (southern France) where fasciolosis is considered as a problem. We found 60% of domestic hosts (cattle) infected with F. hepatica but lower values in wild hosts (nutria, 19%; wild boars, 4.5%). We explored nine variable microsatellite loci for 1,148 adult flukes recovered from four different populations (non-treated cattle, treated cattle, nutria and wild boars). Populations from the four groups differed, though we found a number of migrants particularly non-treated cattle and nutria. Overall, we detected 729 different multilocus genotypes (from 783 completely genotyped individuals) and only 46 genotypes repeated across samples. Finally, we experimentally infected native and introduced intermediate snail hosts to explore their compatibility with F. hepatica and assess the risks of fasciolosis expansion in the region. The introduced species Galba truncatula and Pseudosuccinea columella attained the higher values of overall compatibility in relation to the European species. However, concerning the origin, sympatric combinations of G. truncatula were more compatible (higher prevalence, intensity and survival) than the allopatric tested. According to our results, we should note that the assessment of epidemiological risks cannot be limited to a single host-parasite system, but should focus on understanding the diversity of hosts in the heterogeneous environment through space and time., (© 2020 Wiley-VCH GmbH.)
- Published
- 2021
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178. Expression of trematode-induced zombie-ant behavior is strongly associated with temperature.
- Author
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Gasque, Simone Nordstrand and Fredensborg, Brian Lund
- Subjects
ANTS ,BEHAVIOR modification ,LIVER flukes ,PHENOTYPIC plasticity ,TEMPERATURE effect ,LOW temperatures - Abstract
Parasite-induced modification of host behavior increasing transmission to a next host is a common phenomenon. However, field-based studies are rare, and the role of environmental factors in eliciting host behavioral modification is often not considered. We examined the effects of temperature, relative humidity (RH), time of day, date, and an irradiation proxy on behavioral modification of the ant Formica polyctena (Förster, 1850) by the brain-encysting lancet liver fluke Dicrocoelium dendriticum (Rudolphi, 1819). This fluke induces ants to climb and bite to vegetation by the mandibles in a state of temporary tetany. A total of 1264 individual ants expressing the modified behavior were observed over 13 non-consecutive days during one year in the Bidstrup Forests, Denmark. A sub-set of those ants (N = 172) was individually marked to track the attachment and release of infected ants in relation to variation in temperature. Infected ants primarily attached to vegetation early and late in the day, corresponding to low temperature and high RH, presumably coinciding with the grazing activity of potential herbivorous definitive hosts. Temperature was the single most important determinant for the induced phenotypic change. On warm days, infected ants altered between the manipulated and non-manipulated state multiple times, while on cool days, many infected ants remained attached to the vegetation all day. Our results suggest that the temperature sensitivity of the infected ants serves the dual purpose of exposing infected ants to the next host at an opportune time, while protecting them from exposure to high temperatures, which might increase host (and parasite) mortality. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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- View/download PDF
179. HEPATIC DICROCOELIASIS IN BEEF CATTLE SLAUGHTERED AT ABU-SIMBEL ABATTOIR: FIRST SLAUGHTER HOUSE RECORD IN EGYPT.
- Author
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M., MOHAMED HESHAM, YOUSSEF, MOHAMED SALAH EL-DEIN, ABD-ELGHAFFAR, SARY KHALEEL, and ABD-ELRAHMAN, SALWA MAHMOUD
- Subjects
BEEF cattle ,GALLBLADDER ,BILE ducts ,HEPATIC fibrosis ,SLAUGHTERING ,PESTE des petits ruminants - Abstract
Copyright of Assiut Veterinary Medical Journal is the property of Egyptian National Agricultural Library (ENAL) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
180. Control of gastrointestinal helminths in small ruminants to prevent anthelmintic resistance: the Italian experience.
- Author
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Maurizio, Anna, Perrucci, Stefania, Tamponi, Claudia, Scala, Antonio, Cassini, Rudi, Rinaldi, Laura, and Bosco, Antonio
- Subjects
HELMINTHS ,FECAL egg count ,RUMINANTS ,HELMINTHIASIS ,SUSTAINABILITY ,PRODUCTION losses - Abstract
Helminth infections are ubiquitous in grazing ruminants and cause significant costs due to production losses. Moreover, anthelmintic resistance (AR) in parasites is now widespread throughout Europe and poses a major threat to the sustainability of modern ruminant livestock farming. Epidemiological data on the prevalence and distribution of gastrointestinal nematodes, cestodes and liver- and rumen-flukes in Italian small ruminants are outdated and fragmentary. However, anthelmintics are commonly used to control these infections and often without prior diagnosis. Compared to other European countries, few reports of AR in small ruminants against levamisole, ivermectin and benzimidazoles have been published in Italy, but recent studies suggest that this phenomenon is spreading. Increased and integrated research efforts in developing innovative approaches to control helminth infections and AR are needed and must be tailored to the peculiarities of each context in order to be effectively implemented. This manuscript provides an overview on helminth prevalence and distribution, sustainable treatment strategies and integrated control approaches in small ruminants in Italy. The implementation of targeted treatments and targeted selective treatments is discussed based on different parameters, such as fecal egg count, degree of anaemia (FAMACHA
© method), milk production and body condition score. In addition, several Italian studies have also investigated the implementation of alternative strategies such as the use of different natural bioactive compounds or genetic selection for resistance and resilience to helminth infections. These concrete solutions for helminth management in small ruminant farms in the country are reported and discussed, representing a valid example for other Mediterranean countries. [ABSTRACT FROM AUTHOR]- Published
- 2023
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- View/download PDF
181. Detección de Fasciola hepatica por medio de ELISA indirecto en ovinos y caprinos de Boavita, Colombia.
- Author
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Cruz-Estupiñan, Sharon E., Bulla-Castañeda, Diana M., Lancheros-Buitrago, Deisy J., Garcia-Corredor, Diego J., Giraldo Forero, Julio C., and Pulido-Medellín, Martín O.
- Published
- 2023
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182. Gastrointestinal parasitosis of sheep on farms of the Poltava region
- Author
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L. Korchan, V. Melnychuk, A. Zamaziy, and Yu. Prykhodko
- Subjects
parasitology, sheep, nematodes, trematodes, cestodes, coccidies, distribution, monoinvasion, mixinvasions. ,Veterinary medicine ,SF600-1100 - Abstract
Sheep breeding is one of the most promising branches of agriculture and the most important branch of animal husbandry worldwide. For the successful development of the industry mentioned above, it is necessary to increase the number of sheep and the production of livestock products. One of the aspects of this task is the effective implementation of measures to control parasitic diseases in sheep, particularly those localized in the gastrointestinal tract. The work aimed to investigate the spread of gastrointestinal parasitoses among sheep of single-person peasant farms in the Poltava region. The studies established that the average infestation of sheep by causative agents of gastrointestinal parasitoses is 39.74 %. In the studied sheep, strongylidoses of the digestive organs (extensiveness of invasion – 20.19 %), trichuriasis (18.59 %), eimeriosis (18.27 %), monieziosis (6.73 %), strongyloidosis (6.73 %) and dicrocoeliosis (1.92 %). In 32.26 % of the studied animals, the invasions occurred in monoinvasions, and in 67.74 % – in the form of mixinvasions. Among the monoinvasions, dicrocoeliosic (10 % of monoinvasions), monieziosic (22.5 %), strongyloidosic (40 %), and eimeriosic (27.5 %) were recorded. A total of 10 types of mixinvasions were detected in sheep, where two-component associations of gastrointestinal parasites were most often registered (78.57 % of mixinvasions), and three-component associations of parasites were less frequently diagnosed (21.43 %). Among the two-component mixinvasions, strongyloidosic- eimeriosic and trichuriasic- strongyloidosic were most often diagnosed, where the indicators of the extensiveness of invasions were 5.77 and 5.13 %, respectively. Three-component mixinvasions were represented by an association of trichurises, strongylides of digestive organs and eimeries (3.21 %), trichurises, strongyloideses and eimeries (1.60 %) and moniezies, trichurises, and strongylides of digestive organs (0.96 %). The research results on the spread of gastrointestinal parasitoses in sheep will allow for taking into account the peculiarities of the course of mixinvasions and the composition of their co-members when carrying out treatment and preventive measures in single-person peasant farms of the studied region.
- Published
- 2023
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183. Pathomorphological changes in liver of sheep and goats due to parasitic infestation
- Author
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Khajuria, Amit, Azmi, Shagufta, Rahman, Shafiqur, Sultan, Zubair, and Sharma, Maneesh
- Published
- 2013
184. Prevalence of Common Food-Borne Parasitic Diseases in Slaughtered Ruminants in West Part of Iran.
- Author
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Shahbazi, Y. and Chalehchaleh, A. A.
- Subjects
FOODBORNE diseases ,FOOD contamination ,FOOD safety - Abstract
Background: To obtain update information on the prevalence of common food-borne parasitic diseases, this study designed to determine the prevalence of hydatidosis and liver flukes (Fasciola spp. and Dicrocoelium dendriticum) in the slaughtered cattle, sheep, and goats in Kermanshah, Iran from 2013 to 2016. Methods: In this four-year retrospective survey, information on the prevalence of hydatidosis and liver flukes were collected as a part of routine meat inspection of Iranian Veterinary Organization using a systematically visual inspection, palpation, and incisions of visceral organs. Data were analyzed using SPSS for Windows version 16.0. Results: The hydatidosis infection from liver and lung in cattle were 3.24% (3347/103198) and 4.41% (4553/103198), respectively; while the corresponding infections for small ruminants (both sheep and goats) were 1.48% (5556/372985) and 1.79% (6685/372985), respectively. With respect to liver flukes, 5.99% (6187/103198) and 1.23% (4625/372985) cattle and small ruminants were infected by Fasciola spp., respectively; also, 4.81% (4968/103198) cattle and 2.33% (8722/372985) small ruminants were infected by D. dendriticum. The prevalence rates of parasitic disease in summer were significantly (p<0.05) higher than in winter. Conclusion: It can be concluded that Fasciola spp., D. dendriticum, and E. granulosus still remain the serious human and animal health problems in west part of Iran. More strict regulatory limitations and legislations must be applied to reduce the exposure of Iranian population to the important zoonotic parasitic diseases. [ABSTRACT FROM AUTHOR]
- Published
- 2017
185. A Rare Human Helminth Infection in Russia.
- Author
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Kondrashin, Anatoly V., Morozova, Lola F., Stepanova, Ekaterina V., Turbabina, Natalia A., Maksimova, Maria S., Anikina, Alina S., Shahin-jafari, Ariyo, Morozov, Aleksandr E., Mikhaylov, Dmitry V., Kupriyanova, Yulia D., and Morozov, Evgeny N.
- Published
- 2023
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- View/download PDF
186. First molecular data on the human roundworm Ascaris lumbricoides species complex from the Bronze and Iron Age in Hallstatt, Austria.
- Author
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Barsch, Elisabeth, Kowarik, Kerstin, Rodler, Katharina, Hörweg, Christoph, Reschreiter, Hans, Sattmann, Helmut, and Walochnik, Julia
- Subjects
ASCARIS lumbricoides ,IRON Age ,BRONZE Age ,CYTOCHROME oxidase ,ECHINOCOCCUS granulosus ,INTESTINAL parasites ,NEMATODES - Abstract
Palaeoparasitological studies can provide valuable information on the emergence, distribution, and elimination of parasites during a particular time in the past. In the prehistoric salt mines of Hallstatt, located in the Austrian Alps, human faeces have been conserved in salt. The aim of this study was to recover ancient DNA of intestinal parasites from these coprolites. Altogether, 35 coprolites from the Hallstatt salt mines, dating back to the Bronze Age mining phase (1158–1063 BCE) and the Iron Age mining phase (750–662 BCE), respectively, were analysed by microscopy and molecular methods. In 91% of the coprolite samples, eggs of soil-transmitted helminths (STH), namely of Trichuris and/or Ascaris were detected by light microscopy. The Ascaris eggs were exceptionally well preserved. For further analysis, DNA was extracted from the palaeofaecal samples and species-specific primers targeting different genes were designed. While amplification of Trichuris DNA remained unsuccessful, sequence data of A. lumbricoides species complex were successfully obtained from 16 coprolites from three different genes, the mitochondrial cytochrome c oxidase subunit 1 gene (cox1), the mitochondrial cytochrome B gene (cytB) and the mitochondrial NADH dehydrogenase subunit 1 gene (nadh1). Importantly, these included two Ascaris sequences from a coprolite from the Bronze Age, which to the best of our knowledge are the first molecular data of this genus from this period. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
187. BIOCHEMICAL INDICATORS OF THE FUNCTIONAL STATUS OF THE LIVER IN SHEEP INFESTED WITH FASCIOLA HEPATICA AND DICROCOELIUM DENDRITICUM
- Author
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Adnan Hodžić, Almedina Zuko, Jasmin Omeragić, and Adnan Jažić
- Subjects
Veterinary medicine ,SF600-1100 - Abstract
The aim of this study was to determine the changes in the functional capacity of the liver based on the activity of specific enzymes and bilirubin in serum, and then to explore the possibilities of using them in the early diagnosis and prognosis of sheep fasciolosis and dicrocoeliosis. The study included a total of 56 indigenous sheep of the Pramenka breed of both sexes aging between 1-3 years. Based on the parasitological examination of the liver, the tested animals were divided into three groups: control - healthy and uninfested sheep, the test group A - sheep infested with F. hepatica and the test group B - sheep infested with D. dendriticum. Values of AST, GGT, TBIL and DBIL were measured in the serum of the tested animals, and statistically significant differences (pThe obtained results of biochemical analysis showed significant liver disfunction in fasciolosis, compared with sheep dicrocoeliosis. The degree of these changes and liver disfunction is directly dependent on the intensity of infestation in a way the more parasites the more raised tested serum parameters. Measuring of AST, GGT, TBIL and DBIL in the serum of sheep can be used to prognose the outcome of the disease, while in the diagnosis of sheep fasciolosis and dicrocoeliosis can be used as an additional tool only, particularly in cases of severe and long-lasting infestations as well as suspected disease. Key words: biochemical indicators, functional capacity of liver, sheep, Fasciola hepatica, Dicrocoelium dendriticum
- Published
- 2013
188. Morphometric analysis and functional insights into the serotonergic system of Girardia tigrina (Tricladida, Platyhelminthes).
- Author
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Kreshchenko ND and Ermakov AM
- Subjects
- Animals, Tryptophan Hydroxylase metabolism, Tryptophan Hydroxylase genetics, Platyhelminths, Serotonergic Neurons metabolism, Serotonin Plasma Membrane Transport Proteins metabolism, Serotonin Plasma Membrane Transport Proteins genetics, Serotonin metabolism, Planarians anatomy & histology, Planarians physiology
- Abstract
Using immunocytochemistry, serotonergic nerve elements were documented in the nervous system of the planarian Girardia tigrina. Serotonin-immunopositive components were observed in the brain, ventral, dorsal and longitudinal nerve cords, transverse nerve commissures connecting the nerve cords, and in the nerve plexus. Whole-mount preparations of G. tigrina were analyzed by fluorescent and confocal laser scanning microscopy. An essential quantitative morphometric measurement of serotonin-immunopositive structures was conducted in three body regions (anterior, middle, and posterior) of the planarian. The number of serotonin neurons was maximal in the head region. The ventral nerve cords gradually decreased in thickness from anterior to posterior body ends. Physiological action of exogenously applied serotonin was studied in G. tigrina for the first time. It was found that serotonin (0.1 and 1 µmol L
-1 ) accelerated eye regeneration. The transcriptome sequencing performed for the first time for the planarian G. tigrina revealed the transcripts of the tryptophan hydroxylase (trph), amino acid decarboxylase (aadc) and serotonin transporter (sert) genes. The data obtained indicate the presence of the components of serotonin pathway in G. tigrina. The identified transcripts can take part in serotonin turnover and participate in the realization of biological effects of serotonin in planarians, associated with eyes regeneration and differentiation., (© 2024 Wiley Periodicals LLC.)- Published
- 2024
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- View/download PDF
189. Diagnosis of a Dicrocoelium dendriticum infection in New World Camelids: a case report
- Author
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D. Klein, H. Prosl, D. Thaller, and M. Floeck
- Subjects
lama ,liver fluke ,ultrasound ,Veterinary medicine ,SF600-1100 - Abstract
Dicrocoelium dendriticum plays an important role in New World Camelids as infected animals may suffer from severe clinical symptoms even leading to death of the animals. Intra vitam diagnosis may be difficult as clinical signs are atypical and Dicrocoelium eggs are shed only intermittently in faeces. The aim of this paper is to present four clinical cases of dicrocoeliosis in lamas as well as three asymptomatic infected animals to support the veterinarian in practice to diagnose infections. Furthermore, it is the first time that ultrasonographic examinations are described in this context. All seven lamas had been admitted to the Clinic for Ruminants at the University for Veterinary Medicine in Vienna. None of the animals had a history of D. dendriticum infection. The ultrasonographic examination of the liver revealed in all diseased animals as well as in two asymptomatic lamas hyperechoic areas representing calcified bile ducts typical for an infection with liver flukes. These findings together with blood examination of liver enzymes and parasitological examination may lead to the intra vitam diagnosis of dicrocoeliosis in lamas and alpacas. With an early diagnosis, the therapy of Dicrocoelium spp. could become more effective and the number of animals rescued may be increased.
- Published
- 2012
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190. A Bibliometric Analysis on Dicrocoelium dendriticum.
- Author
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Altun, Serap Kiliç, Barlik, Fethi, Aydemir, Mehmet Emin, and Alkan, Sevil
- Subjects
BIBLIOMETRICS ,TREMATODA ,VETERINARY parasitology ,WEB-based user interfaces ,DATABASES ,PERIODICAL publishing - Abstract
Background: Dicrocoelium dendriticum, a worldwide zoonotic trematode, is a common parasite of ruminant animals, but humans can be the definitive host by chance. We analyzed the world situation of the parasite from the perspective of the One Health concept by analyzing the research literature published from 1931 to 2022. Methods: Published documents related to D. dendriticum were searched from the Scopus database. Focusing on a visual analysis of the main research documents on D. dendriticum, Dimensions free web app was used to conduct co-occurrence analysis with keywords, countries, institutions, and authors. Moreover, key clustering research, affiliaitons, journals, countries, and authors were determined. Results: The Higher Council for Scientific Research (CSIC) was the most publishing affiliation on D. dendriticum with 19 articles. While the Veterinary Parasitology Journal was the mostly publishing journal on D. dendriticum with 38 articles, the most productive country was Iran. The authors Giuseppe Cringoli and Laura Rinaldi from Università degli Studi di Napoli Federico II, Naples, Italy were the mostly publishing authors. Conclusion: This bibliometric analysis provides an overall description of the current state of D. dendriticum research and the initial exploration of future research directions. Our analysis provides guidance for the development of research on D. dendriticum. [ABSTRACT FROM AUTHOR]
- Published
- 2023
191. Parasitic Characterization and Histopathological Alterations in the Local Naemi Sheep, Ovis aries awassi, Naturally Infected with Dicrocoelium dendriticum in Riyadh, Saudi Arabia.
- Author
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Murshed, Mutee, Al-Quraishy, Saleh, Ahmed, Ashraf M., Mars, Mohamed M., Aljawdah, Hossam M. A., and Qasem, Mahmood A.
- Subjects
BILE ducts ,HEPATOMEGALY ,HISTOPATHOLOGY ,SHEEP ,SHEEP breeds ,LEUCOCYTES ,FIBROSIS - Abstract
Background: The Naemi sheep, Ovis aries awassi, is an important local meat source in Saudi Arabia. The current study investigated the impact of natural infection with Dicrocoelium dendriticum flukes on local sheep. Parasitic burden, egg output and gross external and internal appearances of the liver were investigated. Methods: Fifteen naturally infected sheep were targeted in this study based on positive D. dendriticum hepatic infection and fecal egg counts, in addition to five healthy (control) ones for comparison. Adult flukes were also characterized in terms of morphometric and diagnostic morphological characters. Result: Data showed significant differences in parasite burden between low, median and highly infected sheep as well as many morphological parameters within worms. Livers were compared based on the level of injury, histological alterations and the number of D. dendriticum adult worms. Macroscopically, livers were enlarged and darkened in color, with thicker bile ducts and fibrosis. Furthermore, leucocyte infiltration, bile duct fibrosis and hyperplasia were investigated. Hepatic lesions were scored at different degrees of severity and numbers. In infected levels, a positive correlation was observed between the number of adult flukes, external macroscopic lesions, bile duct hyperplasia and fibrosis. On the other hand, a negative correlation between these symptoms and the level of leukocyte infiltration was observed. [ABSTRACT FROM AUTHOR]
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- 2023
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192. Prevalence of Human and Animal Fasciolosis in Butajira and Gilgel Gibe Health Demographic Surveillance System Sites in Ethiopia.
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Abaya, Samson Wakuma, Mereta, Seid Tiku, Tulu, Fikirte Demissie, Mekonnen, Zeleke, Ayana, Mio, Girma, Musse, Vineer, Hannah Rose, Mor, Siobhan M., Caminade, Cyril, and Graham-Brown, John
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- 2023
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193. Seasonal Occurrence of Cattle Fascioliasis in Kelantan, Malaysia.
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Muhammad Faez, Arizam, Ahmad Najib, Mohamad, Noraini, Abdul Ghafar, Weng Kin, Wong, Abd Rahman, Aziz, Wan Nor Amilah, Wan Abdul Wahab, and Noor Izani, Noor Jamil
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FASCIOLIASIS ,PEARSON correlation (Statistics) ,METEOROLOGICAL stations ,CATTLE ,RAINFALL ,CATTLE breeds - Abstract
Simple Summary: Fascioliasis is a common disease of cattle, but it remains a neglected disease in Malaysia. Several studies have been published in the past to address the significant economic losses to the livestock industry due to fascioliasis, but very few have investigated the effect of climatic factors in the occurrence of the disease. We performed a longitudinal study by examining 40 cattle on a monthly basis for a period of 12 months. In addition, the effect of climatic factors such as temperature, humidity, rainfall, and pan evaporation in the disease occurrence were analysed by Pearson's correlation. We found that cattle fascioliasis is prevalent in Kelantan, and the occurrence of cattle fascioliasis was positively correlated with rainfall and humidity and negatively correlated with evaporation. These observations suggest that the implementation of preventive strategies during monsoon season, which has higher rainfall and humidity and lower evaporation, should be considered to effectively control cattle fascioliasis in Kelantan. A longitudinal study was conducted in five randomly selected farms in Kelantan, Malaysia to determine the seasonal occurrence of cattle fascioliasis and its association with climatic factors. A total of 480 faecal samples were collected by a random purposive sampling method from July 2018 to June 2019. The faecal samples were examined for the presence of Fasciola eggs using a formalin ether sedimentation technique. Meteorological data including temperature, humidity, rainfall, and pan evaporation were obtained from a local meteorological station. The overall prevalence of cattle fascioliasis in Kelantan was 45.8%. The prevalence was observed to be slightly higher during the wet season from August to December (50–58%) than during the dry season from January to June (30–45%). Meanwhile, the mean eggs per gram (EPG) were highest in June (191.1 ± 0.48) and lowest in October (77.62 ± 95.5). However, there were no significant differences in the mean of EPG between the monthly prevalence, tested using one-way ANOVA (p = 0.1828). A statistically significant association (p = 0.014) was observed between the disease and cattle breeds, with Charolais and Brahman showing lower odds of having the disease. There were significant moderate-to-strong positive correlations between cattle fascioliasis and rainfall (r = 0.666; p = 0.018) and humidity (r = 0.808; p = 0.001), as well as strong negative correlations with evaporation (r = −0.829; p = 0.001). The results indicated that the higher prevalence of cattle fascioliasis in Kelantan was correlated with the climatic factors, which include higher rainfall and humidity and lower evaporation. [ABSTRACT FROM AUTHOR]
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- 2023
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194. Evaluation of molecular methods for the field study of the natural history of Dicrocoelium dendriticum.
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Mitchell, Gillian, Cuthill, Grace, Haine, Alex, Zadoks, Ruth, Chaudhry, Umer, Skuce, Philip, and Sargison, Neil
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- *
LIVER flukes , *LIVESTOCK , *POLYMERASE chain reaction , *CLIMATE change , *HABITAT conservation , *MANAGEMENT - Abstract
There is a need for improved methods for the study of the impacts of climatic and livestock management change on the epidemiology of production-limiting helminth parasitic diseases. In this study we report the application of molecular methods to describe the natural history of the small lancet fluke, Dicrocoelium dendriticum on Machair pastures on the Inner Hebridean Isle of Coll. Our results build upon those of the only previous historic field study of D. dendriticum in the British Isles that had been undertaken on the same study site. We demonstrate the value of combining conventional parasitological methods with PCR amplification of a mitochondrial DNA fragment for the detection of D. dendriticum in ants and snails, and PCR amplification of ITS2 and 28S ribosomal DNA fragments to support the species identity of the intermediate hosts, to improving understanding of the epidemiology of D. dendriticum . We report the presence of D. dendriticum infection in cattle, sheep and rabbits grazing on Machair pastures. D. dendriticum infection was identified in a high percentage of the snails, identified as Cochlicella acuta and Cernuella virgata , and in a high percentage of Formica fusca and Myrmica ruginoides ants that were collected from, or clinging to, the tops of flowers. We have identified the involvement of different intermediate host species and higher prevalences of snail and ant infection than previously reported, in part reflecting differences between the sensitivity and specificity of morphological and molecular speciation methods. Overall, our results highlight the complex life history of dicrocoeliosis and illustrate the parasite’s generalist host strategy that confers potential to exploit new niches created by climatic change or grazing management for habitat conservation. [ABSTRACT FROM AUTHOR]
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- 2017
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195. Relationships between Oxidative Stress, Liver, and Erythrocyte Injury, Trace Elements and Parasite Burden in Sheep Naturally Infected with Dicrocoelium dendriticum.
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SAMADIEH, Hadi, MOHAMMADI, Gholam-Reza, MALEKI, Mohsen, BORJI, Hassan, AZIZZADEH, Mohammad, and HEIDARPOUR, Mohammad
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OXIDATIVE stress ,ERYTHROCYTES ,LIVER injuries ,TRACE elements ,ASPARTATE aminotransferase ,SHEEP diseases ,WOUNDS & injuries - Abstract
Background: The aim of this study was to investigate the role of oxidative stress in the pathology of ovine dicrocoeliasis. Methods: During Dec 2013 - Oct 2014, seventy-two sheep (1-3 years) with liver dicrocoeliasis along with 47 healthy sheep were selected from animals admitted for slaughtering at slaughterhouse located in Neyshabour, Razavi Khorasan Province, Iran. Results: In comparison to healthy control, the malondialdehyde (MDA) level and serum total antioxidant capacity were significantly higher in the parasitized group (P<0.05). A significant increase in liver MDA concentration (P<0.05) of parasitized group was also observed. Packed cell volume (PCV), zinc, iron, total bilirubin and albumin sera levels were significantly lower in the parasitized group (P<0.05). In parasitized sheep, a significant positive correlation was seen between serum MDA concentration and the activity of aspartate aminotransferase (AST). On the other hand, the concentration of serum MDA was inversely correlated with the value of PCV. No significant differences were observed for MDA concentration and total antioxidant capacity between normal and abnormal hepatic lobes in the parasitized animals. Oxidative stress markers (MDA and total antioxidant capacity in serum and liver samples) showed no significant correlations with the extent of pathological lesions and serum variables of liver injury in the parasitized sheep. No significant correlation was observed between oxidative stress markers and the fluke's number in the parasitized animals. Conclusion: Oxidative stress may play an important role in the erythrocyte destruction in sheep naturally infected with D. dendriticum. However, no clear relationships were observed between the oxidative stress, hepatic damage and parasite burden. [ABSTRACT FROM AUTHOR]
- Published
- 2017
196. Parasitic Burdens, Egg Output, Hemathologic, and Biochemical Changes in Naturally Infected Lambs with Dicrocoelium dendriticum.
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SAMADIE, Hadi, MOHAMMADI, Gholamreza, HEIDARPOUR, Mohammad, AZIZZADEH, Mohammad, MALEKI, Mohsen, and BORJI, Hassan
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SHEEP diseases ,LAMBS ,SLAUGHTERING ,VETERINARY hematology ,PARASITIC disease diagnosis ,EGGS - Abstract
Background: We investigated the variations of heamathologic and biochemical parameters with different parasitic burdens and the correlation between fecal egg counts and fluke number in livers of sheep naturally infected with Dicrocoelium dendriticum. Methods: In order to detect excretion of D. dendriticum eggs, fecal samples from 120 sheep of different age groups were collected individually at slaughterhouse in Neyshabur County in Razavi Khorasan Province during December 2013 - October 2014. Hematologic and blood biochemical values in 120 sheep naturally infected with D. dendriticum were compared with equivalent values in 120 parasite-free sheep from an organically farmed flock. Investigated animals were kept in outdoor system, on pastures covered with swamps, which remain flooded after rainy season. Results: Total numbers of flukes in livers obtained from infected sheep at autopsy varied between 10 and 18,500. A positive relationship was noted (r= 0.94, P < 0.001) between the number of eggs excreted by each sheep and that of total fluke counts in the liver. Significantly, lower red blood cell, packed cell volume, neutrophil and albumin were observed in parasitized sheep, when compared to the healthy animals. White blood cells, lymphocyte and aspartate aminotransferase values were significantly higher in parasitized sheep. No significant correlation was detected between the hematologic and biochemical parameters and the number of D. dendriticum in the liver. Conclusion: Infection with > 400 D. dendriticum in the liver could be diagnosed by egg per gram. However, there was no relationship between the parasite burden and hematologic and biochemical parameters. [ABSTRACT FROM AUTHOR]
- Published
- 2016
197. ONE HEALTH APPROACH IN THE MANAGEMENT OF GASTRO-INTESTINAL PARASITISM IN HILLY TERRAIN WITH REFERENCE TO THE ANIMALS OF VAN GUJJAR COMMUNITY.
- Author
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Sankar, Muthu, Yashica, K. A., Tiwari, Vinay Kishor, Neethu, C. S., Tripathy, Amit Kumar, Gupta, Parag, Jha, Abhijit, Sharma, Devendra, Singh, Sushil Kumar, Sharma, Aruna, Kumar, Prem, Bhardwaj, Nidhish, Kumar, Manish, Malik, Praveen, Mitra, Abhijit, and Singh, R. K.
- Subjects
PARASITISM ,TRANSHUMANISM ,DAIRY products ,ANIMAL diseases ,GASTROINTESTINAL system - Abstract
Pastoral transhumance is a system followed by nomadic farmers in Uttarakhand and adjoining Himalayan states, with their livelihood centered around milk and milk products. Various factors, such as extreme climatic conditions, animal diseases, nutritional deficiencies, fodder scarcity, poor herd management, and inadequate veterinary and extension services, can adversely impact the health and production of their livestock. Gastro-intestinal parasitism (GIP) is a widespread and economically significant infection in ruminants. In the transhumance hilly pastoral farming system, mortality losses due to diseases are generally lower, except in severe outbreaks of contagious diseases. However, parasitism remains the single biggest cause of morbidity. Intelligent attention to identify various management practices is crucial for the sustainability of the transhumance pastoral farming system. Applying appropriate livestock disease management practices, with "One Health" approaches like "Good Animal Husbandry Practices (GAHPs)," farm biosecurity, "Good Animal Grazing Practices (GAGPs)," and "Good Animal Farm Management (GAFM)," can significantly reduce the disease burden in animals, thereby minimizing the zoonotic diseases burden in humans. Achieving this goal requires proper GIP epidemiology along with anthelmintic resistance monitoring. Additionally, it is essential to validate the ethnoveterinary practices of the Van Gujjar community by employing appropriate scientific procedures. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
198. A post-mortem study of bovine fasciolosis in the Mitidja (north center of Algeria): prevalence, risk factors, and comparison of diagnostic methods.
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Chaouadi M, Harhoura K, Aissi M, Zait H, Zenia S, and Tazerouti F
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- Algeria epidemiology, Animals, Cattle, Cattle Diseases epidemiology, Enzyme-Linked Immunosorbent Assay veterinary, Fascioliasis diagnosis, Fascioliasis epidemiology, Female, Male, Ovum, Prevalence, Risk Factors, Sensitivity and Specificity, Bile parasitology, Cattle Diseases diagnosis, Fasciola hepatica isolation & purification, Fascioliasis veterinary, Liver parasitology
- Abstract
The present study was conducted to determine the prevalence of fasciolosis and investigate the associated risk factors (sex, age, and season) in slaughtered cattle of the Mitidja area. This survey also aimed to compare three diagnostic methods: liver inspection, microscopic bile examination, and ELISA test. Liver and bile of 1400 cattle were examined for the presence of adult and eggs of Fasciola hepatica, respectively. Based on the results obtained by liver and bile examination, a subset of 206 cattle from the 1400 was selected for antibodies detection using the ELISA test. Liver inspection and microscopic bile examination showed prevalences of 2.86% and 5.50%, respectively. The difference between the two methods was highly significant (p < 0.001). The overall prevalence of bovine fasciolosis found by both methods was 6.07%. The disease was more prevalent in females (11.96%) than in males (2.43%), and in older cattle (12.30%) than in younger ones (2.36%). The ELISA test showed some conflicting results: 23.61% of cattle previously diagnosed positive with liver inspection and bile examination were found seronegative, and 3.73% of cattle previously diagnosed negative were found to be seropositive. The sensitivity and specificity of microscopic bile examination were respectively 80% (CI 65.2-89.5%) and 96.7% (CI 95.6-97.5%) as compared with the liver inspection. Likewise, this same method has a sensitivity of 81.36% (CI 69.6-89.3%) and a specificity of 88.97% (CI 82.8-93.1%) as compared with the ELISA test. Our results show that microscopic bile examination is able to detect more infected cattle than liver inspection. In addition to being simple, fast, inexpensive, sensitive, and specific, it is an effective method for the diagnosis of fasciolosis.
- Published
- 2019
- Full Text
- View/download PDF
199. Foodborne Diseases in the Edible Insect Industry in Europe—New Challenges and Old Problems.
- Author
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Gałęcki, Remigiusz, Bakuła, Tadeusz, and Gołaszewski, Janusz
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FOODBORNE diseases ,EDIBLE insects ,INSECT diseases ,FOOD chains ,SUSTAINABLE agriculture - Abstract
Insects play a key role in European agroecosystems. Insects provide important ecosystem services and make a significant contribution to the food chain, sustainable agriculture, the farm-to-fork (F2F) strategy, and the European Green Deal. Edible insects are regarded as a sustainable alternative to livestock, but their microbiological safety for consumers has not yet been fully clarified. The aim of this article is to describe the role of edible insects in the F2F approach, to discuss the latest veterinary guidelines concerning consumption of insect-based foods, and to analyze the biological, chemical, and physical hazards associated with edible insect farming and processing. Five groups of biological risk factors, ten groups of chemical risk factors, and thirteen groups of physical risks factors have been identified and divided into sub-groups. The presented risk maps can facilitate identification of potential threats, such as foodborne pathogens in various insect species and insect-based foods. Ensuring safety of insect-based foods, including effective control of foodborne diseases, will be a significant milestone on the path to maintaining a sustainable food chain in line with the F2F strategy and EU policies. Edible insects constitute a new category of farmed animals and a novel link in the food chain, but their production poses the same problems and challenges that are encountered in conventional livestock rearing and meat production. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
200. Pathological Findings and Oxidative Stress Status Associated with Hydatidosis in Dromedary Camels.
- Author
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Shoulah, Salma A., Gaballa, Mohamed M. S., Marawan, Marawan A., Saqr, Sayed A., Abdelhady, Abdelhamed, Alzahrani, Hayat Ali, Wakid, Majed H., Al-Jabr, Omar A., and Selim, Abdelfattah
- Subjects
CAMELS ,ECHINOCOCCUS granulosus ,OXIDATIVE stress ,ECHINOCOCCOSIS ,ZOONOSES ,LUNG infections ,LUNGS ,LIVER cells - Abstract
Simple Summary: Cystic echinococcosis is a zoonotic helminthic disease that causes severe economic losses. The prevalence of hydatidosis was 21.7% in examined camels. Camels' liver infections were rare, whereas their lung infections were more common. By comparing to non-infected camels, the level of malondialdehyde (MAD) was significantly increased with hydatid cysts infection, while the levels of reduced glutathione (GSH), superoxide dismutase (SOD), and (catalase) CAT were significantly decreased. The histopathological sections of camel cyst revealed layered membranes surrounded by a zone of cellular infiltration and an outermost fibrous tissue reaction. In addition, there was evidence of atelectasis, emphysema, hemorrhage, congestion, and fibrosis in the surrounding tissues. (1) Background: Cystic echinococcosis is a zoonotic helminth disease that causes severe economic losses. The study aimed to assess the prevalence and viability of cystic echinococcosis in examined camels. In addition, assessing the histological, morphological, oxidative, and antioxidant state related to the cystic echinococcosis infection; (2) Methods: The study was performed on 152 slaughtered dromedary camels between March and September 2022 at El-Basatin abattoir in Cairo Governorate, Egypt; (3) Results: The results revealed that the prevalence of hydatidosis was 21.7% in slaughtered camel and the highest infection rate observed in lungs was 87.87%, while it was 9% in livers. Camels' liver infections were rare, whereas their lung infections were more common. By comparing to non-infected camels, the level of MAD was significantly increased with hydatid cysts infection, while the level of GSH, SOD and CAT was significantly decreased. Histopathological section of camel cyst revealed layered membranes surrounded by a zone of cellular infiltration and an outermost fibrous tissue reaction. In addition, there was evidence of atelectasis, emphysema, hemorrhage, congestion, and fibrosis in the surrounding tissues. Nonetheless, the degeneration and necrosis of hepatocytes and other pathological alterations in liver cyst sections were remarkably comparable to those seen in the lungs. Furthermore, calcification was detected. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
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