ArticleParasitology research2007
An evaluation of primers amplifying DNA targets for the detection of Cryptosporidium spp. using C. parvum HNJ-1 Japanese isolate in water samples.
Article in Parasitology research, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
7 citing papers in PubMed, 20 citations in OpenAlex.
- Enhancing diagnostic accuracy: Direct immunofluorescence assay as the gold standard for detecting Giardia duodenalis and Cryptosporidium spp. in canine and feline fecal samples.BMC veterinary research · 2024Article
- Occurrence of cryptosporidium parvum IIaA17G1R1 in hospitalized hemato-oncological patients in Slovakia.Parasitology research · 2022Article
- Assessment of differences between DNA content of cell-cultured and freely suspended oocysts of Cryptosporidium parvum and their suitability as DNA standards in qPCR.Parasites & vectors · 2019Article
- Giardia spp. and Cryptosporidium spp. removal efficiency of a combined fixed-film system treating domestic wastewater receiving hospital effluent.Environmental science and pollution research international · 2019Article
- Significantly higher occurrence of Cryptosporidium infection in Roma children compared with non-Roma children in Slovakia.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2014Article
- Detection and resolution of Cryptosporidium species and species mixtures by genus-specific nested PCR-restriction fragment length polymorphism analysis, direct sequencing, and cloning.Applied and environmental microbiology · 2011Article
- Comparison of diagnostic techniques for the detection of Cryptosporidium oocysts in animal samples.Experimental parasitologyArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The performance of polymerase chain reaction (PCR) procedures for the detection of Cryptosporidium parvum HNJ-1 strain (genotype II) oocysts purified from mice using published protocols was evaluated. Oocysts were concentrated from fecal samples of infected severe combined immunodeficiency (SCID) mice by sucrose flotation and were then purified by immunomagnetic separation method. The genotype of C. parvum was established as type II by restriction fragment length polymorphism (RFLP) analysis. Water samples were spiked with different numbers of oocysts, determined by limiting dilution. Genomic DNA was extracted and used for PCR assays targeting various Cryptosporidium species genes (Beta-Tubulin, COWP, 70 kDa HSP, SSU rRNA, ITS1, TRAP-C1 and TRAP-C2 gene). DNA from oocyst numbers of more than 1 x 10(4) was detected using each of the primers. However, when using lower oocyst numbers, the tools based on 9 of the 16 different primer assays gave sufficient results. Assays using the remaining seven primers gave less than satisfactory results. A new primer set, named VKSS-F1/2 and VKSS-R1/2, that target the 18 SSU rRNA gene of C. parvum was constructed and applied. The VKSS-F1/2 and VKSS-R1/2 assays amplified DNA isolated from spiked samples in 206 of 211 trials (97.6%). This illustrates the difficulty of detecting low numbers of Cryptosporidium spp. oocysts by molecular methods when working with environmental samples.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.