Description: Our OxiSelect 3-Well Comet Assay Kits provide a fast, convenient way to screen for general DNA damage, regardless of the source or nature of the damage. Kits include Comet Slides, reagents, and a fluorescent dye to visualize cells under an epifluorescence microscope.

Description: Our OxiSelect 3-Well Comet Assay Kits provide a fast, convenient way to screen for general DNA damage, regardless of the source or nature of the damage. Kits include Comet Slides, reagents, and a fluorescent dye to visualize cells under an epifluorescence microscope.

Description: Cell Biolabs? Collagen-based Contraction Assay Kit provides a simple system to assess cell contractivity in vitro and screen cell contraction mediators. Each kit provides sufficient quantities to perform up to 24 assays in a 24-well plate. The kit can be also used in culturing cells in 3D collagen matrix.

Description: Cell Biolabs? CytoSelect MTT Cell Proliferation Assay provides a colorimetric format for measuring and monitoring cell proliferation.  The kit contains sufficient reagents for the evaluation of 960 assays in 96-well plates or 192 assays in 24-well plates.  Cells can be plated and then treated with compounds or agents that affect proliferation.  Cells are then detected with the proliferation reagent, which is converted in live cells from the yellow tetrazole MTT to the purple formazan form by a cellular reductase (Figure 1).  An increase in cell proliferation is accompanied by an increased signal, while a decrease in cell proliferation (and signal) can indicate the toxic effects of compounds or suboptimal culture conditions.  The assay principles are basic and can be applied to most eukaryotic cell lines, including adherent and non-adherent cells and certain tissues.  This cell proliferation reagent can be used to detect proliferation in bacteria, yeast, fungi, protozoa as well as cultured mammalian and piscine cells.

Description: For angiogenesis to occur, endothelial cells must escape their stable location and break through the basement membrane. Cells migrate toward an angiogenic stimulus that may be released from nearby tumor cells. These cells proliferate to form new blood vessels. Our Endothelial Tube Formation Assay (In Vitro Angiogenesis) provides an easy, robust system to assess angiogenesis in vitro. The ECM gel matrix very closely resembles an in vivo environment.

Description: Histamine is naturally occurring in food, with high concentrations associated with spoiled and fermented foods. Exposure to high levels of histamine through the ingestion of food can cause symptoms similar to an allergic response. Our Histamine Assay Kit detects total histamine from food samples using a colorimetric probe. Reduction of the probe yields color development proportional the histamine levels in the sample. Absorbance at 450nm is read after a one hour incubation at 37C and histamine levels are calculated based on a histamine standard curve.

Description: The Lactose Assay Kit measures total lactose in milk based food products or biological samples such as blood or urine. Lactose is cleaved into glucose and galactose. Glucose is then oxidized, yielding hydrogen peroxide and D-gluconic acid. The hydrogen peroxide is detected by a fluorometric probe.

Description: Bilirubin, a byproduct of heme breakdown, can exist conjugated to glucuronic acid (direct) and as unconjugated (indirect). The unconjugated form is found in the blood bound to albumin and is transported to the liver. Bilirubin becomes conjugated to glucuronic acid in the liver, making it more soluble and allowing for excretion into bile. High levels of bilirubin have been correlated with jaundice and Gilbert?s syndrome while low levels have been associated with cardiovascular disease and diabetes mellitus.

Description: Our Pyruvate Assay Kit measures pyruvate in biological samples. First, pyruvate is oxidized by pyruvate oxidase, producing hydrogen peroxide. The hydrogen peroxide is then detected at ex. 530-570 nm/em. 590-600 nm using a specific fluorometric probe. Pyruvate levels in unknown samples are determined based on the provided pyruvate standard curve.