| D007223 |
Infant |
A child between 1 and 23 months of age. |
Infants |
|
| D008239 |
Lysine |
An essential amino acid. It is often added to animal feed. |
Enisyl,L-Lysine,Lysine Acetate,Lysine Hydrochloride,Acetate, Lysine,L Lysine |
|
| D008297 |
Male |
|
Males |
|
| D008875 |
Middle Aged |
An adult aged 45 - 64 years. |
Middle Age |
|
| D010455 |
Peptides |
Members of the class of compounds composed of AMINO ACIDS joined together by peptide bonds between adjacent amino acids into linear, branched or cyclical structures. OLIGOPEPTIDES are composed of approximately 2-12 amino acids. Polypeptides are composed of approximately 13 or more amino acids. PROTEINS are considered to be larger versions of peptides that can form into complex structures such as ENZYMES and RECEPTORS. |
Peptide,Polypeptide,Polypeptides |
|
| D010649 |
Phenylalanine |
An essential aromatic amino acid that is a precursor of MELANIN; DOPAMINE; noradrenalin (NOREPINEPHRINE), and THYROXINE. |
Endorphenyl,L-Phenylalanine,Phenylalanine, L-Isomer,L-Isomer Phenylalanine,Phenylalanine, L Isomer |
|
| D011164 |
Porphyrias |
A diverse group of metabolic diseases characterized by errors in the biosynthetic pathway of HEME in the LIVER, the BONE MARROW, or both. They are classified by the deficiency of specific enzymes, the tissue site of enzyme defect, or the clinical features that include neurological (acute) or cutaneous (skin lesions). Porphyrias can be hereditary or acquired as a result of toxicity to the hepatic or erythropoietic marrow tissues. |
Porphyria,Porphyrin Disorder,Disorder, Porphyrin,Disorders, Porphyrin,Porphyrin Disorders |
|
| D011166 |
Porphyrins |
A group of compounds containing the porphin structure, four pyrrole rings connected by methine bridges in a cyclic configuration to which a variety of side chains are attached. The nature of the side chain is indicated by a prefix, as uroporphyrin, hematoporphyrin, etc. The porphyrins, in combination with iron, form the heme component in biologically significant compounds such as hemoglobin and myoglobin. |
Porphyrin |
|
| D011758 |
Pyrroles |
Azoles of one NITROGEN and two double bonds that have aromatic chemical properties. |
Pyrrole |
|
| D002648 |
Child |
A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. |
Children |
|