Hordenine is present in a fairly wide range of plants, notably amongst the cacti, but has also been detected in some algae and fungi.
12.
Some species of sorghum can contain levels of hydrogen cyanide, hordenine, and nitrates lethal to grazing animals in the early stages of the plants'growth.
13.
Additional experiments on isolated tissue lead these investigators to conclude that hordenine was an indirectly acting adrenergic agent that produced its pharmacological effects by releasing stored norepinephrine ( NE ).
14.
It has been established that, in barley, hordenine levels reach a maximum within 5 11 days of germination, then slowly decrease until only traces remain after 1 month.
15.
The apparent ( see original article for discussion ) pK a s for protonated hordenine are 9.78 ( phenolic H ) and 10.02 ( ammonium H ).
16.
Hordenine labelled with 14 C at the position ?-to the N has also been prepared, as has hordenine with a 14 C-label in both N-methyl groups.
17.
Hordenine labelled with 14 C at the position ?-to the N has also been prepared, as has hordenine with a 14 C-label in both N-methyl groups.
18.
These effects are generally not reproduced by " oral " administration of the drug in test animals, and there are virtually no scientific reports of the effects of hordenine in human beings.
19.
Working with L�ger's ( see " Occurrence " ) hordenine sulfate, Camus determined minimum lethal doses for the dog, rabbit, guinea pig and rat ( see " Toxicology " ).
20.
Hordenine was found to be a selective substrate for MAO-B, from rat liver, with K m = 479 ?M, and V max = 128 nM / mg protein / h.
