|
Betacyanins
|
D050859 |
[Conjugates of betalamic acid with cyclo-dopa, both of which derive from TYROSINE. They appear similar to INDOLES but are biosynthesized by a different path and contain N+. Members are red or violet COLORING AGENTS found in the Caryophyllales order of PLANTS and some BASIDIOMYCETES.
, Glycosylated betanidin.
, Aglycone.
] |
|
Betaherpesvirinae
|
D018141 |
[A subfamily of HERPESVIRIDAE characterized by a relatively long replication cycle. Genera include: CYTOMEGALOVIRUS; MUROMEGALOVIRUS; and ROSEOLOVIRUS.
] |
|
Betahistine
|
D001621 |
[A histamine analog and H1 receptor agonist that serves as a vasodilator. It is used in MENIERE DISEASE and in vascular headaches but may exacerbate bronchial asthma and peptic ulcers.
] |
|
Betaine
|
D001622 |
[A naturally occurring compound that has been of interest for its role in osmoregulation. As a drug, betaine hydrochloride has been used as a source of hydrochloric acid in the treatment of hypochlorhydria. Betaine has also been used in the treatment of liver disorders, for hyperkalemia, for homocystinuria, and for gastrointestinal disturbances. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1341)
] |
|
Betaine-Aldehyde Dehydrogenase
|
D050728 |
[An NAD+ dependent enzyme that catalyzes the oxidation of betain aldehyde to BETAINE.
] |
|
Betaine-Homocysteine S-Methyltransferase
|
D050940 |
[A ZINC metalloenzyme that catalyzes the transfer of a methyl group from BETAINE to HOMOCYSTEINE to produce dimethylglycine and METHIONINE, respectively. This enzyme is a member of a family of ZINC-dependent METHYLTRANSFERASES that use THIOLS or selenols as methyl acceptors.
] |
|
Betalains
|
D050858 |
[Compounds derived from TYROSINE via betalamic acid, including BETAXANTHINS and BETACYANINS. They are found in the Caryophyllales order of PLANTS and some BASIDIOMYCETES.
] |
|
Betamethasone
|
D001623 |
[A glucocorticoid given orally, parenterally, by local injection, by inhalation, or applied topically in the management of various disorders in which corticosteroids are indicated. Its lack of mineralocorticoid properties makes betamethasone particularly suitable for treating cerebral edema and congenital adrenal hyperplasia. (From Martindale, The Extra Pharmacopoeia, 30th ed, p724)
] |
|
Betamethasone Valerate
|
D001624 |
[The 17-valerate derivative of BETAMETHASONE. It has substantial topical anti-inflammatory activity and relatively low systemic anti-inflammatory activity.
] |
|
Betapapillomavirus
|
D052686 |
[A genus of DNA viruses in the family PAPILLOMAVIRIDAE, causing cutaneous lesions in humans. Infections exist in latent form in the general population and are activated under conditions of IMMUNOSUPPRESSION.
] |
|
Betaproteobacteria
|
D020562 |
[A class in the phylum PROTEOBACTERIA comprised of chemoheterotrophs and chemoautotrophs which derive nutrients from decomposition of organic material.
] |
|
Betaretrovirus
|
D030121 |
[Previously a genus of the family RETROVIRIDAE consisting of oncogenic exogenous retroviruses that contain type D particles. It included the MASON-PFIZER MONKEY VIRUS. Now it represents one of the two kinds of viruses in the genus BETARETROVIRUS. The core of the type D viruses is the intracytoplasmic type A particle and its mechanism of budding from the cell membrane is similar to the type B oncoviruses.
, A genus of the family RETROVIRIDAE consisting of viruses with either type B or type D morphology. This includes a few exogenous, vertically transmitted and endogenous viruses of mice (type B) and some primate and sheep viruses (type D). MAMMARY TUMOR VIRUS, MOUSE is the type species.
, Previously a genus of the family RETROVIRIDAE consisting primarily of a few exogenous, vertically transmitted and endogenous viruses of mice. Now it represents one of the two kinds of viruses in the genus BETARETROVIRUS.
] |
|
Betaxanthins
|
D050860 |
[Conjugates of betalamic acid with AMINO ACIDS. Some of them are yellow COLORING AGENTS in the Caryophyllales order of PLANTS. This should not be confused with xanthin which is a term used for CAROTENES nor with XANTHINES.
] |
|
Betaxolol
|
D015784 |
[A cardioselective beta-1-adrenergic antagonist with no partial agonist activity.
] |
|
Betazole
|
D001625 |
[A histamine H2 agonist used clinically to test gastric secretory function.
] |
|
Bethanechol
|
D018723 |
[A slowly hydrolyzing muscarinic agonist with no nicotinic effects. Bethanechol is generally used to increase smooth muscle tone, as in the GI tract following abdominal surgery or in urinary retention in the absence of obstruction. It may cause hypotension, HEART RATE changes, and BRONCHIAL SPASM.
] |
|
Bethanechol Compounds
|
D001626 |
[Quaternary ammonium compounds that include BETHANECHOL.
] |
|
Bethanidine
|
D001627 |
[A guanidinium antihypertensive agent that acts by blocking adrenergic transmission. The precise mode of action is not clear.
] |
|
Betrayal
|
D000081722 |
[Act of violation of trust or confidence of a moral standard, etc.
] |
|
Betula
|
D029662 |
[A plant genus of the family BETULACEAE. The tree has smooth, resinous, varicolored or white bark, marked by horizontal pores (lenticels), which usually peels horizontally in thin sheets.
] |
