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Venenivibrio stagnispumantis gains energy by oxidizing hydrogen gas.. In biochemistry, chemosynthesis is the biological conversion of one or more carbon-containing molecules (usually carbon dioxide or methane) and nutrients into organic matter using the oxidation of inorganic compounds (e.g., hydrogen gas, hydrogen sulfide) or ferrous ions as a source of energy, rather than sunlight, as in ...
More generally, in the medical literature, the Pasteur effect refers to how the cellular presence of oxygen causes in cells a decrease in the rate of glycolysis and also a suppression of lactate accumulation. The effect occurs in animal tissues, as well as in microorganisms belonging to the fungal kingdom. [2] [3]
Like other simple aliphatic amines, ethylamine is a weak base: the pK a of [CH 3 CH 2 NH 3] + has been determined to be 10.8 [8] [9] Ethylamine undergoes the reactions anticipated for a primary alkyl amine, such as acylation and protonation. Reaction with sulfuryl chloride followed by oxidation of the sulfonamide give diethyldiazene, EtN=NEt. [10]
Putrescine is found in all organisms. [13] Putrescine is widely found in plant tissues, [13] often being the most common polyamine present within the organism. Its role in development is well documented, but recent studies have suggested that putrescine also plays a role in stress responses in plants, both to biotic and abiotic stressors. [14]
Dimethylamine is a weak base and the pKa of the ammonium CH 3-NH + 2 -CH 3 is 10.73, a value above methylamine (10.64) and trimethylamine (9.79). Dimethylamine reacts with acids to form salts, such as dimethylamine hydrochloride, an odorless white solid with a melting point of 171.5 °C.
SR9009, also known as Stenabolic, is a research drug that was developed by professor Thomas Burris of the Scripps Research Institute as an agonist of Rev-ErbA (i.e., increases the constitutive repression of genes regulated by Rev-ErbA) [1] with a half-maximum inhibitory concentration (IC 50) = 670 nM for Rev-ErbAα and IC 50 = 800 nM for Rev-ErbAβ. [2]
The PGE 2, PGE 1, and PGD 2 products formed in the pathways just cited can undergo a spontaneous dehydration reaction to form PGA 2, PGA 1, and PGJ 2, respectively; PGJ 2 may then undergo a spontaneous isomerization followed by a dehydration reaction to form in series Δ12-PGJ 2 and 15-deoxy-Δ12,14-PGJ 2. [39] PGH 2 has a 5-carbon ring bridged ...