Tests
Newborn Screening Panel (Inborn Errors of Metabolism)
Population screening of newborns from dried blood spots for treatable inborn errors of metabolism before symptoms appear.
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Tests
Population screening of newborns from dried blood spots for treatable inborn errors of metabolism before symptoms appear.
Indicators
A water-soluble vitamin belonging to the vitamin B family, which occurs in many animal and plant tissues, with antihyperlipidemic activity. Niacin is converted to its active form niacinamide, which is a component of the coenzymes nicotinamide adenine dinucleotide (NAD) and its phosphate form, NADP. These coenzymes play an important role in tissue respiration and in glycogen, lipid, amino acid, protein, and purine metabolism. Although the exact mechanism of action by which niacin lowers cholesterol is not fully understood, it may act by inhibiting the synthesis of very low density lipoproteins (VLDL), inhibiting the release of free fatty acids from adipose tissue, increasing lipoprotein lipase activity, and reducing the hepatic synthesis of VLDL-C and LDL-C.
Tests
The determination of the amount of nitrate present in a sample.
Glossary Term
A reaction that contains all reagents except sample nucleic acid. Amplification in the NTC signals contamination of reagents or the environment, so NTC behavior is one of the first run-validity checks in any qPCR run log.
Article
Research record from Int J Infect Dis, 2026-03-20. PMID 41866059.
Glossary Term
Any of various amplification and detection strategies applied to detection of virus contamination in donor blood. Specifically designed to detect recently infected individuals during the latency period before seroconversion.
Article
Research record from Signal Transduct Target Ther, 2026-09-07. PMID 42706252.
Glossary Term
The sample-preparation stage that lyses cells or virions and purifies DNA/RNA before amplification. Extraction quality (yield, purity, inhibitors removed) often limits assay performance more than the PCR itself, and it defines required instruments and hands-on time in a workflow.
Glossary Term
Laboratory procedure in which single stranded nucleic acids are allowed to interact so that complexes, or hybrids, are formed by molecules with sufficiently similar, complementary sequences. By this means the degree of sequence identity can be assessed and specific sequences detected. (From Biology-online)
Article
Research record from Ultrason Sonochem, 2026-05-27. PMID 42218843.
Indicators
A naturally occurring amino acid found in meat, fish, dairy and eggs. Ornithine is one of the key reactants in the urea cycle that is responsible for 80% of the nitrogen excretion in the body. Ornithine enhances liver function and helps detoxify harmful substances.
Indicators
Osteocalcin (100 aa, ~11 kDa) is encoded by the human BGLAP gene. This protein is involved in bone development.