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You searched for: Subject "Cryptosporidium parvum" Remove constraint Subject: "Cryptosporidium parvum" Journal Veterinary parasitology Remove constraint Journal: Veterinary parasitology
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1. A Cryptosporidium parvum genotype shift between week old and two week old calves following administration of a prophylactic antiprotozoal

Author:
Seale, Jessica; Swain, Josh; Booth, Richard; Blake, Damer P.
Source:
Veterinary parasitology 2019 v.273 pp. 32-35
ISSN:
0304-4017
Subject:
Cryptosporidium parvum,   etc   ; calves; farms; feces; genotype; halofuginone; lactic acid; loci; polymerase chain reaction; ribosomal DNA; England;     Show all 11 Subjects
Abstract:
... This study looked to assess the stability of Cryptosporidium parvum genotypes in calves between the final day of treatment with the antiprotozoal halofuginone lactate and seven days post-treatment. Paired faecal samples were collected on the final day of treatment and seven days later from 54 calves across seven farms in South-west England. The presence of Cryptosporidium species was detected usin ...
DOI:
10.1016/j.vetpar.2019.07.009

2. The Cryptosporidium parvum gp60 glycoprotein expressed in the ciliate Tetrahymena thermophila is immunoreactive with sera of calves infected with Cryptosporidium oocysts

Author:
Elguero, María E.; Tomazic, Mariela L.; Montes, María G.; Florin-Christensen, Mónica; Schnittger, Leonhard; Nusblat, Alejandro D.
Source:
Veterinary parasitology 2019 v.271 pp. 45-50
ISSN:
0304-4017
Subject:
Cryptosporidium parvum,   etc   ; Protozoa; Tetrahymena thermophila; adhesion; antigens; body weight; calves; cryptosporidiosis; detergents; diarrhea; glycoproteins; heterologous gene expression; oocysts; parasites; recombinant vaccines; reticuloendothelial system;     Show all 16 Subjects
Abstract:
... Cryptosporidium parvum is a protozoan parasite of the phylum Apicomplexa responsible for cryptosporidiosis in calves, a disease that causes significant diarrhea and impairs gain of body weight, generating important production losses. As to now, no effective drugs or vaccines are available for the treatment or prevention of bovine cryptosporidiosis. Several reports suggest that development of a vac ...
DOI:
10.1016/j.vetpar.2019.06.008

3. Long-term use of yeast fermentation products in comparison to halofuginone for the control of cryptosporidiosis in neonatal calves

Author:
Vélez, Juan; Lange, Malin K.; Zieger, Peter; Yoon, Ilkyu; Failing, Klaus; Bauer, Christian
Source:
Veterinary parasitology 2019 v.269 pp. 57-64
ISSN:
0304-4017
Subject:
Cryptosporidium parvum,   etc   ; Saccharomyces cerevisiae; calves; cattle diseases; coproantigens; cryptosporidiosis; dairy farming; diarrhea; feces; females; fermented foods; halofuginone; milk; non-genetically modified foods; oocysts; weight gain; yeasts;     Show all 17 Subjects
Abstract:
... The objective of this study was to compare the effect of non-GMO Saccharomyces cerevisiae fermentation products (SCFP) with that of a halofuginone treatment against Cryptosporidium parvum infection in pre-weaned calves on a commercial dairy farm. A total of 123 neonatal female calves, housed in individual hutches, were enrolled sequentially based on date of birth in 41 blocks of 3 animals each. Ca ...
DOI:
10.1016/j.vetpar.2019.04.008

4. Isolation, genotyping and subtyping of single Cryptosporidium oocysts from calves with special reference to zoonotic significance

Author:
Gharieb, Rasha M.A.; Bowman, Dwight D.; Liotta, Janice L.; Xiao, Lihua
Source:
Veterinary parasitology 2019 v.271 pp. 80-86
ISSN:
0304-4017
Subject:
Cryptosporidium parvum,   etc   ; DNA; amino acids; calves; dairy farming; farms; feces; genes; genotype; genotyping; glycoproteins; nucleotides; oocysts; polymerase chain reaction; restriction fragment length polymorphism; ribosomal RNA; sequence analysis; Finger Lakes region; New York;     Show all 19 Subjects
Abstract:
... The ability of the small-subunit ribosomal RNA (SSU rRNA) based nested PCR and Restriction Fragment Length Polymorphism (PCR-RFLP) to identify and genotype a single Cryptosporidium oocyst isolated from bovine faecal samples was evaluated in this study. In addition, subtyping was carried out by sequencing the 60 kDa glycoprotein (gp60) gene from the same single oocyst. Faecal samples were collected ...
DOI:
10.1016/j.vetpar.2019.05.003

5. Disinfection with hydrated lime may help manage cryptosporidiosis in calves

Author:
Björkman, Camilla; von Brömssen, Claudia; Troell, Karin; Svensson, Catarina
Source:
Veterinary parasitology 2018 v.264 pp. 58-63
ISSN:
0304-4017
Subject:
Cryptosporidium parvum,   etc   ; body condition; calcium hydroxide; calves; cleaning; cryptosporidiosis; dairy herds; diarrhea; disinfection; dominant species; farmers; farms; oocysts; veterinarians;     Show all 14 Subjects
Abstract:
... Diarrhea is common in young calves and is often caused by Cryptosporidium parvum infection. The aim of this study was to investigate if disinfection of calf pens with hydrated lime would reduce contamination of C. parvum oocysts and improve calf health in herds with C. parvum associated diarrhea problems. Four dairy herds with ongoing C. parvum associated calf diarrhea problems each participated i ...
DOI:
10.1016/j.vetpar.2018.11.004

6. Identification of novel vaccine candidates against cryptosporidiosis of neonatal bovines by reverse vaccinology

Author:
Tomazic, M.L.; Rodriguez, A.E.; Lombardelli, J.; Poklepovich, T.; Garro, C.; Galarza, R.; Tiranti, K.; Florin-Christensen, M.; Schnittger, L.
Source:
Veterinary parasitology 2018 v.264 pp. 74-78
ISSN:
0304-4017
Subject:
Cryptosporidium parvum,   etc   ; Internet; Protozoa; alleles; antibodies; antigens; bioinformatics; calves; cryptosporidiosis; diarrhea; oocysts; parasites; proteins; proteome; subunit vaccines; vaccination; vaccine development;     Show all 17 Subjects
Abstract:
... The apicomplexan protozoan Cryptosporidium parvum is an important causative agent of diarrhea of neonatal bovines. Vaccination has been proposed as an advantageous strategy against cryptosporidiosis of calves since besides protection against disease it has also the potential to prevent dissemination of infective oocysts into the environment. Antigens anchored to the parasite surface via glycosylph ...
DOI:
10.1016/j.vetpar.2018.11.007

7. Nuclear delivery of parasite Cdg2_FLc_0220 RNA transcript to epithelial cells during Cryptosporidium parvum infection modulates host gene transcription

Author:
Zhao, Guang-Hui; Gong, Ai-Yu; Wang, Yang; Zhang, Xin-Tian; Li, Min; Mathy, Nicholas W.; Chen, Xian-Ming
Source:
Veterinary parasitology 2018 v.251 pp. 27-33
ISSN:
0304-4017
Subject:
Cryptosporidium parvum,   etc   ; Protozoa; cryptosporidiosis; epithelial cells; gene expression; gene expression regulation; genes; messenger RNA; methylation; models; parasites; transcription (genetics); zinc finger motif;     Show all 13 Subjects
Abstract:
... Intestinal infection by the zoonotic protozoan, Cryptosporidium parvum, causes significant alterations in the gene expression profile in host epithelial cells. The molecular mechanisms of how C. parvum may modulate host cell gene transcription and the pathological significance of such alterations are largely unclear. Previous studies demonstrate that a panel of parasite RNA transcripts are deliver ...
DOI:
10.1016/j.vetpar.2017.12.015

8. Haptoglobin and serum amyloid-A concentrations and their relationship with oocyst count in neonatal lambs experimentally infected with Cryptosporidium parvum

Author:
Dinler, Ceren; Ulutas, Bulent; Voyvoda, Huseyin; Ulutas, Pinar Alkim; Ural, Kerem; Karagenc, Tulin
Source:
Veterinary parasitology 2017 v.247 pp. 49-56
ISSN:
0304-4017
Subject:
Cryptosporidium parvum,   etc   ; acute phase proteins; amyloid; blood serum; colostrum; feces; haptoglobins; lambs; models; oocysts;     Show all 10 Subjects
Abstract:
... This study aimed to evaluate the acute phase response (APR) through haptoglobin (Hp) and serum amyloid A (SAA) concentrations in serum and to examine the correlation between these acute phase proteins (APPs) and oocyst shedding using experimental Cryptosporidium parvum (C. parvum) infection model in neonatal lambs. Twenty lambs were divided into two equal groups: group CON remained uninfected as n ...
DOI:
10.1016/j.vetpar.2017.09.023

9. First detection of Cryptosporidium parvum in falcons (Falconiformes): Diagnosis, molecular sequencing, therapeutic trial and epidemiological assessment of a possible emerging disease in captive falcons

Author:
Azmanis, Panagiotis; di Somma, Antonio; Pappalardo, Lucia; Silvanose, Christu-Das; Bangoura, Berit
Source:
Veterinary parasitology 2018 v.252 pp. 167-172
ISSN:
0304-4017
Subject:
Cryptosporidium parvum,   etc   ; Cryptosporidium baileyi; Falco rusticolus; air sacs; biochemistry; birds of prey; cryptosporidiosis; emerging diseases; endoscopy; falcons; feces; flight; fungal spores; genes; hematology; loci; lungs; parasitology; polymerase chain reaction; radiography; sequence analysis;     Show all 21 Subjects
Abstract:
... Cryptosporidiosis in raptors and falcons is well-known to be caused by Cryptosporidium baileyi and associated mainly with respiratory pathology. This report presents the diagnosis of an atypical cryptosporidiosis event caused by Cryptosporidium parvum, that to the authors’ knowledge, is a case observed for the first time in falcons. Two falcons (Gyrfalcon x Peregrine hybrids) were presented for an ...
DOI:
10.1016/j.vetpar.2018.02.012

10. Comparative efficacy of curcumin and paromomycin against Cryptosporidium parvum infection in a BALB/c model

Author:
Asadpour, Mohammad; Namazi, Fatemeh; Razavi, Seyed Mostafa; Nazifi, Saeed
Source:
Veterinary parasitology 2018 v.250 pp. 7-14
ISSN:
0304-4017
Subject:
Cryptosporidium parvum,   etc   ; Protozoa; animal models; antioxidant activity; curcumin; dairy calves; digestive system diseases; drugs; females; genes; histopathology; hosts; ileum; jejunum; malondialdehyde; mice; oocysts; parasites; polymerase chain reaction; ribosomal RNA; sequence analysis; villi;     Show all 22 Subjects
Abstract:
... Cryptosporidium is a ubiquitous protozoan parasite causing gastrointestinal disorder in various hosts worldwide. The disease is self-limiting in the immunocompetent but life-threatening in immunodeficient individuals. Investigations to find an effective drug for the complete elimination of the Cryptosporidium infection are ongoing and urgently needed. The current study was undertaken to examine th ...
DOI:
10.1016/j.vetpar.2017.12.008

11. Statistical comparison of excystation methods in Cryptosporidium parvum oocysts

Author:
Pecková, Radka; Stuart, Peter D.; Sak, Bohumil; Květoňová, Dana; Kváč, Martin; Foitová, Ivona
Source:
Veterinary parasitology 2016 v.230 pp. 1-5
ISSN:
0304-4017
Subject:
Cryptosporidium parvum,   etc   ; excystation; in vitro studies; oocysts; pathogenicity; permeability; protocols; sodium hypochlorite; sporozoites; trypsin; viability;     Show all 11 Subjects
Abstract:
... Excystation of sporozoites of Cryptosporidium parvum from oocysts is essential for successful in vitro assays. It has also been traditionally used as a measure for oocyst viability and infectivity. Laboratories use various excystation protocols so there is a need to clarify which method is the best. In this study, six different protocols for in vitro excystation of C. parvum oocysts were compared ...
DOI:
10.1016/j.vetpar.2016.10.007

12. Longitudinal monitoring of Cryptosporidium species in pre-weaned dairy calves on five farms in Shanghai, China

Author:
Cai, Min; Guo, Yaqiong; Pan, Baoliang; Li, Na; Wang, Xiaolan; Tang, Chuanxiang; Feng, Yaoyu; Xiao, Lihua
Source:
Veterinary parasitology 2017 v.241 pp. 14-19
ISSN:
0304-4017
Subject:
Cryptosporidium parvum,   etc   ; bulls; dairy calves; developed countries; diarrhea; farms; feces; genes; genotype; genotyping; glycoproteins; mixed infection; monitoring; restriction fragment length polymorphism; ribosomal RNA; sequence analysis; China;     Show all 17 Subjects
Abstract:
... In pre-weaned dairy calves, the zoonotic and pathogenic species Cryptosporidium parvum is the dominant Cryptosporidium species in most industrialized nations. In several studies in China, however, C. bovis has been the dominant one. To further examine the distribution of Cryptosporidium species in pre-weaned dairy calves in China, 818 fecal specimens were collected from five farms in Shanghai, wit ...
DOI:
10.1016/j.vetpar.2017.05.005

13. First description of Cryptosporidium hominis GP60 genotype IkA20G1 and Cryptosporidium parvum GP60 genotypes IIaA18G3R1 and IIaA15G2R1 in foals in Brazil

Author:
Inácio, Sandra Valéria; Widmer, Giovanni; de Brito, Roberta Lomonte Lemos; Zucatto, Anaiza Simão; de Aquino, Monally Conceição Costa; Oliveira, Bruno César Miranda; Nakamura, Alex Akira; Neto, Luiz da Silveira; Carvalho, João Gabriel Balizardo; Gomes, Jancarlo Ferreira; Meireles, Marcelo Vasconcelos; Bresciani, Katia Denise Saraiva
Source:
Veterinary parasitology 2017 v.233 pp. 48-51
ISSN:
0304-4017
Subject:
Cryptosporidium parvum,   etc   ; Cryptosporidium hominis; DNA; actin; breeds; farms; feces; foals; genes; genotype; glycoproteins; humans; parasites; polymerase chain reaction; ribosomal RNA; Brazil;     Show all 16 Subjects
Abstract:
... The present study focuses on Cryptosporidium infections of foals in Brazil. A total of 92 animals of different breeds from 11 farms in the vicinity of Araçatuba in the state of São Paulo, were examined. According to PCR targeting the 18S rRNA gene, Cryptosporidium sp. DNA was detected in 21.7% (20/92) of foals. Good quality 18S rRNA, actin, HSP70 and gp60 genes nPCR amplicons were obtained from fi ...
DOI:
10.1016/j.vetpar.2016.11.021

14. Improvement of in vitro evaluation of chemical disinfectants for efficacy on Cryptosporidium parvum oocysts

Author:
Delling, Cora; Lendner, Matthias; Müller, Uwe; Daugschies, Arwid
Source:
Veterinary parasitology 2017 v.245 pp. 5-13
ISSN:
0304-4017
Subject:
Cryptosporidium parvum,   etc   ; DNA; ambient temperature; chemical treatment; culture media; dimethyl sulfoxide; disinfectants; excystation; genes; hardness; hydrogen peroxide; in vitro studies; oocysts; parasites; quantitative polymerase chain reaction; sporozoites; toxicity; viability; washing;     Show all 19 Subjects
Abstract:
... Cryptosporidium parvum has been suggested as a suitable target for in vitro efficacy testing of disinfectants. To improve validity of a method based on exposure of HCT-8 monolayers to C. parvum oocysts we here critically evaluate and we propose certain procedural steps needed for the validation of disinfectants. Within a range of 0.02% to 0.4%, sodium taurocholate at 0.2% stimulated infection most ...
DOI:
10.1016/j.vetpar.2017.07.018

15. First description of Cryptosporidium parvum in carrier pigeons (Columba livia)

Author:
Oliveira, Bruno César Miranda; Ferrari, Elis Domingos; da Cruz Panegossi, Mariele Fernanda; Nakamura, Alex Akira; Corbucci, Flávio Sader; Nagata, Walter Bertequini; dos Santos, Bianca Martins; Gomes, Jancarlo Ferreira; Meireles, Marcelo Vasconcelos; Widmer, Giovanni; Bresciani, Katia Denise Saraiva
Source:
Veterinary parasitology 2017 v.243 pp. 148-150
ISSN:
0304-4017
Subject:
Cryptosporidium parvum,   etc   ; Columba livia; breeding; cities; exhibitions; feces; females; genes; humans; malachite green; males; microscopy; oocysts; parasites; pigeons; polymerase chain reaction; public health; recreation; ribosomal DNA; ribosomal RNA; risk; Brazil;     Show all 22 Subjects
Abstract:
... The carrier pigeon and the domestic pigeon are different breeds of the species Columba livia. Carrier pigeons are used for recreational activities such as bird contests and exhibitions. Due to the close contact with humans, these birds may potentially represent a public health risk, since they can host and disseminate zoonotic parasites, such as those belonging to the genus Cryptosporidium (phylum ...
DOI:
10.1016/j.vetpar.2017.06.023

16. Cryptosporidium parvum: Determination of ID50 and the dose–response relationship in experimentally challenged dairy calves

Author:
Zambriski, J.A.; Nydam, D.V.; Wilcox, Z.J.; Bowman, D.D.; Mohammed, H.O.; Liotta, J.L.
Source:
Veterinary parasitology 2013 v.197 no.1-2 pp. 104-112
ISSN:
0304-4017
Subject:
Cryptosporidium parvum,   etc   ; cryptosporidiosis; dairy calves; diarrhea; feces; oocysts;     Show all 6 Subjects
Abstract:
... The objectives were to determine the median infective dose (ID50) of Cryptosporidium parvum and to describe the dose–response relationship including associated clinical illness in experimentally challenged dairy calves. Within the first 24h of life, 27 test calves were experimentally challenged with C. parvum oocysts and 3 control calves were sham dosed. Test calves received 1 of 8 possible doses ...
DOI:
10.1016/j.vetpar.2013.04.022
PubMed:
23680540

17. Cryptosporidium parvum: From foal to veterinary students

Author:
Galuppi, R.; Piva, S.; Castagnetti, C.; Sarli, G.; Iacono, E.; Fioravanti, M.L.; Caffara, M.
Source:
Veterinary parasitology 2016 v.219 pp. 53-56
ISSN:
0304-4017
Subject:
Cryptosporidium parvum,   etc   ; asphyxia; cryptosporidiosis; diarrhea; feces; foals; genes; glycoproteins; humans; mares; pain; polymerase chain reaction; restriction fragment length polymorphism; ribosomal DNA; sepsis (infection); staining; students; veterinarians;     Show all 18 Subjects
Abstract:
... This paper describes the transmission of a zoonotic subtype of Cryptosporidium parvum between two foals hospitalized in an Equine Perinatology Unit (EPU) linked to an outbreak of cryptosporidiosis in veterinary students. Fecal specimens of 36 mares (105 samples) and 28 foals (122 samples) were subjected to Ziehl–Neelsen staining, nested PCR of 18S rDNA. Two foals tested positive for Cryptosporidiu ...
DOI:
10.1016/j.vetpar.2016.02.001

18. Prevalence and molecular characterization of Cryptosporidium spp. and Giardia duodenalis in dairy cattle in Beijing, China

Author:
Li, Fuhuang; Wang, Haiyan; Zhang, Zhenjie; Li, Junqiang; Wang, Chenrong; Zhao, Jinfeng; Hu, Suhui; Wang, Rongjun; Zhang, Longxian; Wang, Ming
Source:
Veterinary parasitology 2016 v.219 pp. 61-65
ISSN:
0304-4017
Subject:
Cryptosporidium parvum,   etc   ; Cryptosporidium andersoni; DNA; Giardia lamblia; calves; dairy cattle; feces; genes; heifers; microscopy; nucleotide sequences; oocysts; ribosomal RNA; sequence analysis; triose-phosphate isomerase; China;     Show all 16 Subjects
Abstract:
... 822 fecal samples from cattle in six areas of Beijing were examined with microscopy for Cryptosporidium oocysts and Giardia cysts. The overall infection rates for Cryptosporidium spp. and Giardia duodenalis were 2.55% and 1.09%, respectively. Cryptosporidium was only detected in calves and heifers, whereas G. duodenalis was found in all age groups. Cryptosporidium spp. were characterized with a PC ...
DOI:
10.1016/j.vetpar.2016.01.023

19. Molecular epidemiology of Cryptosporidium species in livestock in Ireland

Author:
Mirhashemi, Marzieh Ezzaty; Zintl, Annetta; Grant, Tim; Lucy, Frances; Mulcahy, Grace; Waal, Theo De
Source:
Veterinary parasitology 2016 v.216 pp. 18-22
ISSN:
0304-4017
Subject:
Cryptosporidium parvum,   etc   ; Cryptosporidium andersoni; Cryptosporidium bovis; Cryptosporidium ryanae; Protozoa; cattle; cryptosporidiosis; diarrhea; farms; genotype; horses; hosts; molecular epidemiology; sheep; spring; summer; swine; watersheds; Ireland;     Show all 19 Subjects
Abstract:
... Cryptosporidium is a protozoan that can cause gastro-intestinal illness with diarrhoea in a wide range of hosts. In fact some species of Cryptosporidium can infect the broad range of hosts. The current paper is focused to investigate monthly prevalence and diversity of Cryptosporidium spp. during the spring and early summer (March–June) in 2009 and 2010 in farms with no history of cryptosporidiosi ...
DOI:
10.1016/j.vetpar.2015.12.002

20. Greater intensity and frequency of Cryptosporidium and Giardia oocyst shedding beyond the neonatal period is associated with reductions in growth, carcase weight and dressing efficiency in sheep

Author:
Jacobson, Caroline; Williams, Andrew; Yang, Rongchang; Ryan, Una; Carmichael, Ian; Campbell, Angus J.; Gardner, Graham E.
Source:
Veterinary parasitology 2016 v.228 pp. 42-51
ISSN:
0304-4017
Subject:
Cryptosporidium parvum,   etc   ; Giardia; Haemonchus; body weight; carcass weight; eggs; farms; feces; genetic background; grazing; lambs; linear models; longitudinal studies; meat production; oocysts; parasites; quantitative polymerase chain reaction; sheep meat; slaughter; weaning;     Show all 20 Subjects
Abstract:
... Associations between intensity and frequency of Cryptosporidium and Giardia shedding with growth, carcase weight and dressing% were investigated using a longitudinal study of 1182 lambs on eight Australian farms. Live weight was recorded and faecal samples were collected on three sampling occasions; weaning (approximately 12 weeks of age), post-weaning (approximately 19 weeks) and pre-slaughter (a ...
DOI:
10.1016/j.vetpar.2016.08.003