Cap Score
Cap Score - Related Videos
11:00
Tissue Determination Using the Animal Cap Transplant (ACT) Assay in Xenopus laevis
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Cited by 8 •
2010
Animal caps overexpressing gene product(s) are transplanted to the flank of developing Xenopus laevis embryos in order to establish whether tissue is determined.
01:06
Introduction to z Scores
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2023
A z score (or standardized value) is measured in units of the standard deviation. It tells you how many standard deviations the value x is above (to the right of) or below (to the left of) the mean, μ. Values of x that are larger than the mean have positive z scores, and values of x that are smaller than the mean have negative z scores. If x equals the mean, then x has a zero z score. It is important to note that the mean of the z scores is zero, and the standard deviation is one. z scores help...
01:05
Introduction to z Scores
0 Views •
2024
A z score (or standardized value) is measured in units of the standard deviation. It indicates how many standard deviations the value x is above (to the right of) or below (to the left of) the mean, μ. Values of x that are larger than the mean have positive z scores, and values of x that are smaller than the mean have negative z scores. If x equals the mean, then x has a zero z score. It is important to note that the mean of the z scores is zero, and the standard deviation is one. z scores help...
01:17
z Scores and Area Under the Curve
0 Views •
2023
z scores are the standardized values obtained after converting a normal distribution into a standard normal distribution. A z score is measured in units of the standard deviation. The z score tells you how many standard deviations the value x is above (to the right of) or below (to the left of) the mean, μ. Values of x that are larger than the mean have positive z scores, and values of x that are smaller than the mean have negative z scores. If x equals the mean, then x has a z score of zero.
08:55
In vitro Transcription and Capping of Gaussia Luciferase mRNA Followed by HeLa Cell Transfection
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Cited by 13 •
2012
This method describes high yield in vitro synthesis of both capped and uncapped mRNA from a linearized plasmid containing the Gaussia luciferase (GLuc) gene. The RNA is purified and a fraction of the uncapped RNA is enzymatically capped using the Vaccinia virus capping enzyme. In the final step, the mRNA is transfected into HeLa cells and cell culture supernatants are assayed for luciferase activity.
FAQs
The measurement is based on how much an ultrasound signal weakens, or attenuates, while passing through liver tissue. Fat increases this attenuation, allowing the device to generate a CAP value. Because the result estimates hepatic steatosis rather than directly measuring tissue fat, clinicians interpret it as part of a broader liver assessment.
A higher CAP score generally suggests a greater amount of hepatic steatosis, meaning more fat is present in the liver. The value supports estimation of fat burden, but it should be considered with liver stiffness, medical history, and laboratory findings. This combined approach helps clinicians assess the significance of the result rather than relying on the score alone.
CAP focuses on liver fat, whereas liver stiffness provides a different measurement during the same transient elastography assessment. Medical history and laboratory findings add further clinical context. Reviewing these data together can support risk stratification and help distinguish an isolated steatosis finding from a broader pattern requiring closer evaluation.
During transient elastography, an ultrasound-based pulse travels through the liver, and the device records how strongly the signal is attenuated as it moves through the tissue. That attenuation measurement is converted into a CAP score. The process provides an assessment of liver fat without requiring a liver biopsy, supporting a noninvasive clinical evaluation.
Clinicians may use CAP scores when assessing hepatic steatosis in conditions such as metabolic dysfunction-associated steatotic liver disease. The result can contribute to initial evaluation and risk stratification when reviewed alongside clinical history, liver stiffness, and laboratory findings. It offers information about liver fat while avoiding the need to obtain tissue through biopsy.
Repeated CAP assessments can help evaluate whether liver fat changes during treatment or a lifestyle intervention. A change in the measurement may provide additional information about the liver’s response over time, while interpretation still depends on accompanying liver stiffness, medical history, and laboratory findings. This makes the score useful for longitudinal clinical monitoring.