Proliferation Rate Measurement
Proliferation Rate Measurement - Related Videos
03:09
Measuring Reaction Rates
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2020
Polarimetry finds application in chemical kinetics to measure the concentration and reaction kinetics of optically active substances during a chemical reaction. Optically active substances have the capability of rotating the plane of polarization of linearly polarized light passing through them—a feature called optical rotation. Optical activity is attributed to the molecular structure of substances. Normal monochromatic light is unpolarized and possesses oscillations of the electrical field in...
08:32
Measurement of Outgassing Rates of Steels
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Cited by 5 •
2016
A protocol for the measurement of outgassing rates of hydrogen from ordinary steel vacuum chambers using the rate-of-pressure rise method is presented.
03:59
Bromodeoxyuridine Pulse Labelling Assay: A Technique to Measure Cell Proliferation
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2023
The video describes the stepwise pulse labeling assay of mammalian cells with bromodeoxyuridine (BrdU) for measuring cell proliferation. The BrdU uptake permits the temporal tracking of cells that were in the synthesis phase at a specific point in time, without requiring the cells to be synchronized.
04:31
Measurement of Metabolic Rate in Drosophila using Respirometry
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Cited by 49 •
2014
Metabolic disorders are among one of the most common diseases in humans. The genetically tractable model organism D. melanogaster can be used to identify novel genes that regulate metabolism. This paper describes a relatively simple method which allows studying the metabolic rate in flies by measuring their CO2 production.
13:35
Mass Conservation and Flow Rate Measurements
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2023
Source: Ricardo Mejia-Alvarez and Hussam Hikmat Jabbar, Department of Mechanical Engineering, Michigan State University, East Lansing, MI The purpose of this experiment is to demonstrate the calibration of a flow passage as a flowmeter using a control volume (CV) formulation [1, 2]. The CV analysis focuses on the macroscopic effect of flow on engineering systems, rather than the detailed description that could be achieved with a detailed differential analysis. These two techniques should be...
FAQs
These readouts capture different aspects of population growth. Tracking cell number follows expansion directly, whereas DNA synthesis reflects entry into processes associated with cell-cycle progression. Metabolic measurements provide an activity-based estimate, and Ki-67 detects a proliferation-associated marker. Comparing results across readouts can help distinguish increased population size from changes in cellular activity or proliferation status.
Defined culture conditions, genetic changes, and microenvironmental conditions can all influence the measured rate. These factors may alter cell-cycle progression, causing populations to expand more rapidly or slowly. Keeping culture conditions defined and comparing genetically or environmentally distinct groups allows investigators to determine whether observed differences reflect intrinsic cell properties or responses to the surrounding conditions.
The interpretation depends on how the population changes and which readout is used. A drug may slow population expansion, prevent progression through the cell cycle, or reduce the number of viable cancer cells. Measuring proliferation under defined conditions and examining growth-related or proliferation-associated signals helps separate these outcomes rather than treating every reduction as the same biological response.
Ki-67 provides a marker-based view of proliferation-associated activity within a cell population. Its detection can complement measurements based on cell number, DNA synthesis, or metabolic activity, especially when investigators want to characterize differences between normal and malignant cells. Used alongside other readouts, it helps relate population behavior to changes in cell-cycle progression.
A typical workflow establishes defined culture conditions, follows the cell population over time, and selects a quantitative readout such as cell number, DNA synthesis, metabolic activity, or a proliferation-associated marker. Investigators then compare the resulting measurements between relevant cell groups or treatments. This approach connects changes in growth behavior with genetic, environmental, or pharmacological conditions.
Researchers use it when they need to characterize differences in growth behavior or examine how tumor-associated properties affect cell-cycle progression. Parallel measurements can compare normal and malignant populations under defined conditions, while additional comparisons can test the effects of genetic changes or microenvironmental conditions. The resulting data help describe tumor growth and disease-related cellular behavior.