Comparative analysis of detection methods for congenital cytomegalovirus infection in a Guinea pig model. 2013

Albert H Park, and David Mann, and Marc E Error, and Matthew Miller, and Matthew A Firpo, and Yong Wang, and Stephen C Alder, and Mark R Schleiss
Divisions of Otolaryngology–Head and Neck Surgery, University of Utah School of Medicine, Salt Lake City, UT 84132, USA. albert.park@hsc.utah.edu

OBJECTIVE To assess the validity of the guinea pig as a model for congenital cytomegalovirus (CMV) infection by comparing the effectiveness of detecting the virus by real-time polymerase chain reaction (PCR) in blood, urine, and saliva. METHODS Case-control study. METHODS Academic research. METHODS Eleven pregnant Hartley guinea pigs. METHODS Blood, urine, and saliva samples were collected from guinea pig pups delivered from pregnant dams inoculated with guinea pig CMV. These samples were then evaluated for the presence of guinea pig CMV by real-time PCR assuming 100% transmission. RESULTS Thirty-one pups delivered from 9 inoculated pregnant dams and 8 uninfected control pups underwent testing for guinea pig CMV and for auditory brainstem response hearing loss. Repeated-measures analysis of variance demonstrated no statistically significantly lower weight for the infected pups compared with the noninfected control pups. Six infected pups demonstrated auditory brainstem response hearing loss. The sensitivity and specificity of the real-time PCR assay on saliva samples were 74.2% and 100.0%, respectively. The sensitivity of the real-time PCR on blood and urine samples was significantly lower than that on saliva samples. CONCLUSIONS Real-time PCR assays of blood, urine, and saliva revealed that saliva samples show high sensitivity and specificity for detecting congenital CMV infection in guinea pigs. This finding is consistent with recent screening studies in human newborns. The guinea pig may be a good animal model in which to compare different diagnostic assays for congenital CMV infection.

UI MeSH Term Description Entries
D011237 Predictive Value of Tests In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test. Negative Predictive Value,Positive Predictive Value,Predictive Value Of Test,Predictive Values Of Tests,Negative Predictive Values,Positive Predictive Values,Predictive Value, Negative,Predictive Value, Positive
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D003586 Cytomegalovirus Infections Infection with CYTOMEGALOVIRUS, characterized by enlarged cells bearing intranuclear inclusions. Infection may be in almost any organ, but the salivary glands are the most common site in children, as are the lungs in adults. CMV Inclusion,CMV Inclusions,Congenital CMV Infection,Congenital Cytomegalovirus Infection,Cytomegalic Inclusion Disease,Cytomegalovirus Colitis,Cytomegalovirus Inclusion,Cytomegalovirus Inclusion Disease,Cytomegalovirus Inclusions,Inclusion Disease,Perinatal CMV Infection,Perinatal Cytomegalovirus Infection,Renal Tubular Cytomegalovirus Inclusion,Renal Tubular Cytomegalovirus Inclusions,Salivary Gland Virus Disease,Severe Cytomegalovirus Infection,Severe Cytomegalovirus Infections,Infections, Cytomegalovirus,CMV Infection, Congenital,CMV Infection, Perinatal,Colitis, Cytomegalovirus,Congenital CMV Infections,Congenital Cytomegalovirus Infections,Cytomegalic Inclusion Diseases,Cytomegalovirus Colitides,Cytomegalovirus Inclusion Diseases,Cytomegalovirus Infection,Cytomegalovirus Infection, Congenital,Cytomegalovirus Infection, Perinatal,Cytomegalovirus Infection, Severe,Cytomegalovirus Infections, Severe,Disease, Cytomegalic Inclusion,Disease, Cytomegalovirus Inclusion,Diseases, Cytomegalovirus Inclusion,Inclusion Disease, Cytomegalic,Inclusion Disease, Cytomegalovirus,Inclusion Diseases,Inclusion Diseases, Cytomegalovirus,Inclusion, CMV,Inclusion, Cytomegalovirus,Infection, Congenital CMV,Infection, Congenital Cytomegalovirus,Infection, Cytomegalovirus,Infection, Perinatal CMV,Infection, Perinatal Cytomegalovirus,Infection, Severe Cytomegalovirus,Perinatal CMV Infections,Perinatal Cytomegalovirus Infections
D004797 Enzyme-Linked Immunosorbent Assay An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed. ELISA,Assay, Enzyme-Linked Immunosorbent,Assays, Enzyme-Linked Immunosorbent,Enzyme Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assays,Immunosorbent Assay, Enzyme-Linked,Immunosorbent Assays, Enzyme-Linked
D005260 Female Females
D006168 Guinea Pigs A common name used for the genus Cavia. The most common species is Cavia porcellus which is the domesticated guinea pig used for pets and biomedical research. Cavia,Cavia porcellus,Guinea Pig,Pig, Guinea,Pigs, Guinea
D006320 Hearing Tests Part of an ear examination that measures the ability of sound to reach the brain. Hearing in Noise Test,Quick Speech-in Noise Test (QuickSIN),Real Ear Measurement,Speech in Noise Hearing Test,Ear Measurement, Real,Ear Measurements, Real,Hearing Test,Measurement, Real Ear,Measurements, Real Ear,Quick Speech in Noise Test (QuickSIN),Real Ear Measurements,Test, Hearing,Tests, Hearing
D000704 Analysis of Variance A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable. ANOVA,Analysis, Variance,Variance Analysis,Analyses, Variance,Variance Analyses
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000831 Animals, Newborn Refers to animals in the period of time just after birth. Animals, Neonatal,Animal, Neonatal,Animal, Newborn,Neonatal Animal,Neonatal Animals,Newborn Animal,Newborn Animals

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