Significant increase in salivary substance P level after a single oral dose of Japanese herbal medicine Dai-kenchu-to in humans

2012 ◽  
Vol 2 (3) ◽  
pp. 81-84 ◽  
Author(s):  
Yosuke Suzuki ◽  
Hiroki Itoh ◽  
Ryota Yamamura ◽  
Ryosuke Tatsuta ◽  
Yuhki Sato ◽  
...  
Keyword(s):  
Herbal Medicine ◽  
Substance P ◽  
Oral Dose ◽  
Single Oral Dose ◽  
Japanese Herbal Medicine

scholarly journals Interaction between Pirenzepine and Ninjinto, a Traditional Japanese Herbal Medicine, on the Plasma Gut-Regulated Peptide Levels in Humans

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Yuhki Sato ◽  
Itoh Hiroki ◽  
Yosuke Suzuki ◽  
Ryosuke Tatsuta ◽  
Masaharu Takeyama
Keyword(s):  
Herbal Medicine ◽  
Substance P ◽  
Combined Treatment ◽  
Time Curve ◽  
Parasympathetic Nerve ◽  
P Release ◽  
Calcitonin Gene ◽  
Japanese Herbal Medicine ◽  
Plasma Motilin ◽  
Substance P Release

The Japanese herbal medicine (Kampo) Ninjinto has been used for the treatment of gastroenteritis, esogastritis, gastric atony, gastrectasis, vomiting, and anorexia. The pharmacological effects of Ninjinto on the gastrointestine are due to changes in the levels of gut-regulated peptide, such as motilin, somatostatin, calcitonin gene-related peptide (CGRP), substance P, and vasoactive intestinal polypeptide (VIP). The release of these peptides is controlled by acetylcholine (ACh) from the preganglionic fibers of the parasympathetic nerve. Thus, we examined the effects of the selective M1 muscarinic receptor antagonist pirenzepine on the elevation of Ninjinto-induced plasma the area under the plasma gut-regulated peptide concentration-time curve from 0 to 240 min () in humans. Oral pretreatment with pirenzepine significantly reduced the Ninjinto-induced elevation of plasma motilin and substance P release (). Combined treatment with Ninjinto and pirenzepine significantly increased the release of plasma somatostatin () compared with administration of Ninjinto alone or placebo. Ninjinto appeared to induce the release of substance P and motilin into plasma mainly through the activation of M1 muscarinic receptors, and pirenzepine may affect the pharmacologic action of Ninjinto by the elevation of plasma substance P, motilin, and somatostatin.

scholarly journals Significant Increase in Salivary Substance P Level after a Single Oral Dose of Cevimeline in Humans

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Yosuke Suzuki ◽  
Hiroki Itoh ◽  
Kohei Amada ◽  
Ryota Yamamura ◽  
Yuhki Sato ◽  
...  
Keyword(s):  
Substance P ◽  
Oral Dose ◽  
Single Oral Dose ◽  
Plasma Levels ◽  
Therapeutic Agent ◽  
Venous Blood ◽  
Muscarinic Acetylcholine Receptor ◽  
Salivary Secretion ◽  
Calcitonin Gene ◽  
Highly Sensitive

Cevimeline is a novel muscarinic acetylcholine receptor agonist currently being developed as a therapeutic agent for xerostomia. We examined the effects of cevimeline on salivary and plasma levels of substance-P- (SP-), calcitonin-gene-related-peptide- (CGRP-), and vasoactive-intestinal-polypeptide- (VIP-) like immunoreactive substances (ISs) in humans. An open-labeled crossover study was conducted on seven healthy volunteers. Saliva volume was measured, and saliva and venous blood samples were collected before and 30–240 min after a single oral dose of cevimeline or placebo. Salivary and plasma levels of SP-, CGRP-, and VIP-IS were measured using a highly sensitive enzyme immunoassay. A single oral dose of cevimeline resulted in significant increases in salivary but not plasma SP-IS level compared to placebo. Cevimeline administration did not alter the salivary or plasma levels of CGRP-IS or VIP-IS compared to placebo. Significant increases in salivary volume were observed after cevimeline administration compared to placebo. A significant correlation was observed between the total release of SP-IS and that of salivary volume. These findings suggest an association of SP with the enhancement of salivary secretion by cevimeline.

Yokukansan, a Japanese Herbal Medicine, Suppresses Substance P-Induced Production of Interleukin-6 and Interleukin-8 by Human U373 MG Glioblastoma Astrocytoma Cells

2020 ◽  
Vol 20 (7) ◽  
pp. 1073-1080 ◽  
Author(s):  
Keisuke Yamaguchi ◽  
Sho Yamazaki ◽  
Seiichiro Kumakura ◽  
Akimasa Someya ◽  
Masako Iseki ◽  
...  
Keyword(s):  
Herbal Medicine ◽  
Substance P ◽  
P38 Mapk ◽  
Nuclear Translocation ◽  
Enzyme Linked Immunosorbent Assay ◽  
Western Blot Assay ◽  
Astrocytoma Cells ◽  
Japanese Herbal Medicine ◽  
Cox 2 ◽  
Stimulation Of

Context: Yokukansan is a traditional Japanese herbal medicine that has an antiallodynic effect in patients with chronic pain. However, the mechanisms by which yokukansan inhibits neuropathic pain are unclear. Objective: This study aimed to investigate the molecular effects of yokukansan on neuroinflammation in U373 MG glioblastoma astrocytoma cells, which express a functional high-affinity neurokinin 1 receptor (substance P receptor), and produce interleukin (IL)-6 and IL-8 in response to stimulation by substance P (SP). Methods: We assessed the effect of yokukansan on the expression of ERK1/2, P38 MAPK, nuclear factor (NF)-κB, and cyclooxygenase-2 (COX-2) in U373 cells by western blot assay. Levels of IL-6 and IL-8 in conditioned medium obtained after stimulation of cells with SP for 24 h were measured by enzyme-linked immunosorbent assay. All experiments were conducted in triplicate. Results were analyzed by one-way ANOVA, and significance was accepted at p < 0.05. Results: Yokukansan suppressed SP-induced production of IL-6 and IL-8 by U373 MG cells, and downregulated SP-induced COX-2 expression. Yokukansan also inhibited phosphorylation of ERK1/2 and p38 MAPK, as well as nuclear translocation of NF-κB, induced by SP stimulation of U373 MG cells. Conclusion: Yokukansan exhibits anti-inflammatory activity by suppressing SP-induced production of IL-6 and IL-8 and downregulating COX-2 expression in U373 MG cells, possibly via inhibition of the activation of signaling molecules, such as ERK1/2, p38 MAPK, and NF-κB.

A Rapid (48 hours) Thyroid Suppression Test using a Single Oral Dose of 100 of Triiodothyronine

1973 ◽  
Vol 12 (03) ◽  
pp. 218-224
Author(s):  
Elli Lakka - Papadodima ◽  
Constantin Ntalles ◽  
Denis Ikkos
Keyword(s):  
Oral Dose ◽  
Single Oral Dose ◽  
Suppression Test

Des mesurages répétés de la fixation thyroïdienne de 10 minutes du 132I injecté intraveineusement on été effectués sur 55 malades euthyroïdiens sans et avec goitre et sur 16 malades hyperthyreoïdiens par 4 jours consécutifs. Immédiatement après le premier mesurage tous les malades recevaient une dose unique oral de 100 μg de Triiodothyronine (T3). Les valeurs de fixation 24, 48 et 72 heures après le T3 (moyen ± déviation standard) étaient de 75 ± 1,7, 64 ± 1,8, et 67 ± 1,9 dans le groupe euthyroïdien et le 106 ± 2,6, 104 ± 2,2 et 108 ± 4,0 dans le groupe hyperthyroïdien, exprimés en pourcentage du groupe controle. 48 heures après T3 tous les personnes euthyroïdiens, sauf une, avaient des valeurs en dessous de 88% tandis que la valeur la plus basse des personnes hyperthyroïdiens ce jour était de 93%. La séparation des valeurs 48 heures des deux groupes était complète après avoir respecté l’influence de la première fixation sur la valeur 48 heures. On peut donc supposer q’un test thyroïdien de suppression utilisable en clinique peut-être effectué en 48 heures après une administration oral de 100 μg de T3 et mesurage de la fixation 10 minutes après l’injection du radioisotope.

Effect of Aspirin on the Thrombelastogram of Human Blood

1973 ◽  
Vol 30 (03) ◽  
pp. 494-498 ◽  
Author(s):  
G de Gaetano ◽  
J Vermylen
Keyword(s):  
Oral Dose ◽  
Single Oral Dose ◽  
Platelet Function ◽  
Human Blood ◽  
Platelet Rich Plasma ◽  
Plasma Samples ◽  
Release Reaction ◽  
Platelet Release

SummaryThrombelastograms of both native blood and re-calcified platelet-rich plasma samples taken from subjects given a single oral dose of aspirin (1 gram) were not significantly different from the pretreatment recordings. Aspirin also did not modify the thrombelastogram when preincubated in vitro with platelet-rich plasma at concentrations inhibiting the platelet “release reaction” by collagen. Thrombelastography therefore cannot evaluate the effect of aspirin on platelet function.

Serum Enzyme, Corticosterone and Tissue Changes in Rats Following a Single Oral Dose of Ethanol

1970 ◽  
Vol 31 (2) ◽  
pp. 281-287 ◽  
Author(s):  
Paul D. Altland ◽  
Benjamin Highman ◽  
Milton G. Parker ◽  
Michael P. Dieter
Keyword(s):  
Oral Dose ◽  
Single Oral Dose ◽  
Serum Enzyme ◽  
Tissue Changes

Effects of a single oral dose of phenobarbital on prolactin, growth hormone and luteinizing hormone in normal women

1983 ◽  
Vol 103 (3) ◽  
pp. 309-314 ◽  
Author(s):  
G. Rosadini ◽  
P. Masturzo ◽  
G. Rodriguez ◽  
G. Murialdo ◽  
V. Montano ◽  
...  
Keyword(s):  
Growth Hormone ◽  
Luteinizing Hormone ◽  
Oral Dose ◽  
Single Oral Dose ◽  
Power Analysis ◽  
Sleep Pattern ◽  
Absolute Power ◽  
Normal Women

Abstract. The effects of a single oral dose of phenobarbital (PB) on the 24 h secretion of prolactin, growth hormone and luteinizing hormone have been evaluated in normal women. An EEG record was taken and barbiturate levels assayed in serum. A statistically significant decrease of growth hormone 24 h mean levels was observed and growth hormone and prolactin values during sleep were diminished. No changes in luteinizing hormone concentrations were observed. After PB the EEG showed no important alterations in sleep pattern, but on the power analysis an increase above 16 Hz absolute power was detected during the waking period.

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