compound Protocols

Category: Buffers Media, and Solutions

Buffer calculator tool for commonly used buffer compound solutions. Making different volumes? use this! (Practical Molecular Biology) - [Read Buffer calculator tool]

Category: Pharmacology and Toxicology Protocols: Cytotoxicity Protocols: Cytotoxicity Assays in Cell Culture Protocols

Human A431 cells and mouse 3T3 cells are exposed in culture to UV light both in the presence and absence of test compound.  Phototoxicity is expressed as a decrease in cell viability as determined by the MTT assay. - [Read Cell Culture Phototoxicity Test Protocol]

Category: Mouse Protocols

Mice fed with the cytohesin inhibitor SecinH3 for two days develop hepatic insulin resistance that can be identified by reduced liver glycogen levels, increased serum insulin and ketone body levels and decreased serum non-esterified fatty acid. To confirm the presence and identity of SecinH3 in mouse liver, we extracted the compound from liver homogenates with chloroform and identified it by LC/MS. - [Read Extraction of the SecinH3 from Mouse Liver Protocol]

Category: Pharmacology and Toxicology Protocols: Cytotoxicity Protocols: Cell Specific Cytotoxicity Assays Protocols

The effect of a test compound, in the presence and absence of S-9 mix, on the differentiation and growth of rat limb bud and CNS cells in vitro indicates whether it is potentially a teratogen in vivo. - [Read In Vitro Micromass Teratogen Assay]

Category: Microinjection Protocols: Microinjection of Proteins Protocols

Activation and inactivation of proteins using photoactivation of caged peptides or proteins offer insights into cellular dynamics not achievable using genetic means. The ability to selectively alter the activity of a specific protein at a defined time and location inside a cell allows the correlation of changes in protein activity and cellular behavior. A caged compound, peptide, or protein is prepared by covalently linking it to a photolabile, protecting group. - [Read Introduction of Caged Peptide/Protein into Cells Using Microinjection Protocol]

Category: Pharmacology and Toxicology Protocols: Cytotoxicity Protocols: Liver Toxicity Assays Protocols

Leakage of lactate dehydrogenase and alanine aminotransferase from rat and mouse liver slices exposed to the test compound is used as a measure of hepatotoxicity. - [Read Liver Slice Hepatotoxicity Screening System Protocol]

Category: Pharmacology and Toxicology Protocols: Cytotoxicity Protocols: Cell Specific Cytotoxicity Assays Protocols

Potential embryotoxicity is assessed by monitoring the effect of the test compound on total protein synthesis, and DNA synthesis in cultured human foetal lung fibroblasts.  Rat lung epithelial cells can be used to determine cytotoxicity of select compounds because of their ability to metabolise xenobiotics. - [Read Lung Cell Assay Protocol]

Category: Cell Biology and Cell Culture: Cell Viability Protocols

The latest generation of Promega cell-based assays includes luminescent and fluorescent chemistries to measure markers of cell viability, cytotoxicity and apoptosis, as well as to perform reporter analysis. Using these tools researchers can investigate how cells respond to growth factors, cytokines, hormones, mitogens, radiation, effectors, compound libraries and other signaling molecules. The protocols provided are guidelines for multiplexing cell-based assays & are intended as starting points. - [Read Multiplexing Cell Viability Assays Protocols]

Category: Pharmacology and Toxicology Protocols: Cytotoxicity Protocols: Cell Specific Cytotoxicity Assays Protocols

In this test rabbit articular chondrocytes are cultured in the presence of test compound, the toxicity of which is then determined by its effect on the production of proteoglycan by the cells, as detected by the dye Alcian Blue. - [Read Rabbit Articular Chondrocyte Functional Toxicity Test]

Category: Pharmacology and Toxicology Protocols: Cytotoxicity Protocols: Microorganism Cytotoxicity Assays Protocols

The basis of this test is that a cytotoxic chemical (regardless of site or mechanism of action) will interfere with the normal motility of the protozoan, Tetrahymena thermophila, in culture.  The degree of interference of motility as compared to control cultures, related to the concentration of the test compound, provides an indication of toxicity. - [Read Tetrahymena Thermophila Ocular Irritancy Test]