Scott Lawrence wrote on Nov 17th, 2008 at 12:24pm:Liquorice affects the bodies endocrine system, of which the hypothalamus is a part, which may or may not do something? I don't know? It also acts as a kind of vascular constrictor, raising blood pressure while tightening the blood vessels.....
Yes, real licorice has a corticosteroid-like effect. It can cause a retention of fluids (moon-face and high blood pressure) - but I don't think it is a vasoconstrictor per se. Most of the Chai I have seen has little or no licorice, though.
Short term, cinnamon improves blood sugar regulation and is anti-inflammatory. Cinnamon can also be pungent/piquant/spicy/hot, which might point to a substance P regulating effect.
One thing that Goadsby and others are actively pursuing for CH and migraine is a CGRP inhibitor. Some Japanese formulas containing cinnamon have been shown to do exactly that, at least in the case of women with hot flashes.
Quote:Maturitas. 2003 Jul 25;45(3):199-204.
Menopausal hot flash and calciotonin gene-related peptide; effect of Keishi-bukuryo-gan, a kampo medicine, related to plasma calciotonin gene-related peptide level.
Chen JT, Shiraki M.
JT Chen Clinic, Sunbright Twin 3F, 2-46-1 Honcho, Nakano-Ku, Tokyo 164-0012, Japan.
OBJECTIVES: The purpose of this study is to investigate relationship of menopausal hot flash and calcitonin gene-related peptide (CGRP). Furthermore, this study evaluated the effect of the Japanese herbal (kampo) medicine Keishi-bukuryo-gan from the aspect of CGRP regulation. METHODS: Plasma CGRP and vasoactive intestinal peptide (VIP) levels were measured during hot flash and CGRP reactivity was studied by cold load test in subjects with/without hot flashes. The effect of Keishi-bukuryo-gan was assessed in comparison with plasma CGRP level. RESULTS: Only plasma CGRP but not VIP significantly elevated at the occurrence of hot flash (P=0.002). Stress by cold load significantly enhanced the over-secretion of CGRP in subjects with flash compared with those without flash (P=0.003) 3 min after the load. Keishi-bukuryo-gan decreased plasma CGRP level in subjects with hot flash. CONCLUSIONS: CGRP but not VIP was mainly related to the occurrence of hot flash. Keishi-bukuryo-gan, Japanese herbal medicine, improves hot flash possibly affecting plasma CGRP level.
The herbal combination Keishi-bukuryo-gan is an equal part of cinnamon, 2 kinds of peony, peach kernel, and tuckahoe fungus.