Polynucleated Cell Identification
Polynucleated Cell Identification - Related Videos
14:12
Rodent Identification II
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2015
Source: Kay Stewart, RVT, RLATG, CMAR; Valerie A. Schroeder, RVT, RLATG. University of Notre Dame, IN Animal records must be accurately maintained to ensure that data collection is correct. Records range from maintaining information on cage cards to having a detailed database with all of the relevant information on each animal. The primary component of recordkeeping is the individual identification of research animals. There are a variety of methods suitable for identifying mice and rats. This...
11:09
Rodent Identification I
0 Views •
2015
Source: Kay Stewart, RVT, RLATG, CMAR; Valerie A. Schroeder, RVT, RLATG. University of Notre Dame, IN A fundamental requirement of biomedical research is the proper identification of research animals. It is essential that the right animal is utilized for procedures and data collection. Laboratory mice and rats can be identified with the following permanent methods: ear tags, ear punch codes, microchip implantation, tail tattoos for adult mice, and toe tattoos for neonates. Temporary methods of...
03:03
Identification and Enumeration of Immune Cells in Bronchoalveolar Lavage Fluid by Flow Cytometry
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2025
This video demonstrates the use of flow cytometry to identify and count various immune cells in bronchoalveolar lavage fluid. Initially, single immune cells are identified using a viability dye, followed by differential staining of surface marker proteins, enabling the precise enumeration of each cell type.
10:11
Isolation and Identification of Limbal Niche Cells
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Cited by 3 •
2023
Here, we present a protocol to isolate and identify the human limbal niche cells.
12:06
Tree Identification: How To Use a Dichotomous Key
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2023
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University A dichotomous key is a tool that identifies items in nature, such as leaves. This method is based on the idea of choosing between two characteristics. The word dichotomous comes from two Greek words that mean “to divide into two parts.” In a dichotomous key for leaf identification, each pair of phrases describes different features of the leaf. Only one of the phrases correctly applies to the leaf being keyed out. The...
FAQs
These signals answer two different questions: nuclear stains reveal how many nuclei are present, while boundary or cytoskeletal markers indicate whether those nuclei occupy one cell or several adjacent cells. Combining them reduces the risk of counting neighboring cells as one polynucleated unit and supports more reliable measurements of cellular organization.
Identification depends on spatial association between nuclei and the visible cell context. Image analysis evaluates nuclear locations together with cell boundaries or cytoskeletal structure, rather than treating every nearby nucleus as evidence of one cell. This distinction is essential when cultures or engineered tissues contain closely positioned cells.
Nuclear number, nuclear distribution, and overall cell morphology provide complementary readouts. Nuclear number indicates the extent of multinuclear organization, distribution describes how nuclei are arranged within the cell, and morphology places those findings in structural context. Together, these measurements can reveal changes associated with maturation, fusion, and tissue development.
Researchers first image cells using nuclear staining together with a cell-boundary or cytoskeletal marker. They then inspect the relationship between nuclei and the labeled cellular structure, distinguish single-cell from neighboring-cell arrangements, and apply image analysis to quantify the identified units. The workflow produces measurements of nuclear number, distribution, and cell morphology.
It is useful when engineered tissues or muscle-like constructs must be characterized structurally, particularly in studies of cell fusion, differentiation, or tissue organization. The same approach can assess cellular responses to biomaterials or culture conditions. By linking microscopy patterns to quantitative measurements, it helps compare how engineered environments affect tissue development.
Changes in nuclear pattern can be examined alongside cell morphology and nuclear distribution to identify differences in maturation, fusion, or organization. The method does not rely on nuclear count alone; interpreting several measurements together provides a broader view of how cells are arranging and developing within an engineered construct.