Indicators
A nonessential amino acid. Glutamine can donate the ammonia on its side chain to the formation of urea (for eventual excretion by the kidneys) and to purines (necessary for the synthesis of nucleic acids). Glutamic acid-to-glutamine conversion, in which an ammonia group is added to glutamic acid (catalyzed by glutamine synthase), is of central importance in the regulation of toxic levels of ammonia in the body. This agent is a substrate for the production of both excitatory and inhibitory neurotransmitters (glutamate and GABA) and is also an important source of energy for the nervous system. Glutamine may become a conditionally essential amino acid during certain catabolic states.
Indicators
A non-essential, non-polar, non-optical, glucogenic amino acid. Glycine, an inhibitory neurotransmitter in the CNS, triggers chloride ion influx via ionotropic receptors, thereby creating an inhibitory post-synaptic potential. In contrast, this agent also acts as a co-agonist, along with glutamate, facilitating an excitatory potential at the glutaminergic N-methyl-D-aspartic acid (NMDA) receptors. Glycine is an important component and precursor for many macromolecules in the cells.
Tests
A gonorrhea test looks for signs of a gonorrhea bacterial infection in a sample of your urine (pee) or saliva. Gonorrhea is one of the most common sexually transmitted infections (STIs). Anyone can get gonorrhea if they have vaginal, oral, or anal sex with someone who has the infection.
For everyone & professionals
Indicators
A tetrameric complex of 2 molecules of hemoglobin subunit alpha (encoded by either the HBA1 or HBA2 gene) and 2 molecules of a hemoglobin subunit beta variant where the glutamic acid residue at position 7 has been replaced by valine.
Tests
The determination of the amount of hippuric acid present in a sample.
For professionals
Indicators
A semi-essential amino acid (children should obtain it from food) needed in humans for growth and tissue repair, Histidine is important for maintenance of myelin sheaths that protect nerve cells and is metabolized to the neurotransmitter histamine. Histamines play many roles in immunity, gastric secretion, and sexual functions. Histidine is also required for blood cell manufacture and protects tissues against damage caused by radiation and heavy metals. (NCI04)
Tests
An HIV viral load test measures the amount of HIV in a sample of your blood. HIV stands for human immunodeficiency virus. The test looks for genetic material from the virus in your blood. These tests are called molecular tests or nucleic acid amplification tests (NAAT or NAT). There are several types of NAAT tests. A PCR test is one type of NAAT that may be used to find HIV.
For everyone & professionals
Tests
Quantitative measurement of HIV-1 RNA to stage infection and monitor therapy.
For everyone & professionals
Indicators
An amino acid derivative and homolog of cysteine containing an additional methylene bridge. Homocysteine is a product of methionine metabolism and elevated plasma levels are associated with cardiovascular disease, Alzheimer disease and several metabolic diseases.
Tests
The determination of the amount of homocysteine amino acid present in a sample.
For professionals
Tests
A homocysteine test measures the amount of homocysteine in a sample of your blood. Homocysteine is an amino acid. Amino acids are molecules that your body uses to make proteins.
For everyone & professionals
Tests
The determination of the amount of homogentisic acid in a sample.
For professionals
