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Yasuhiko Higashi et al.
Journal of cosmetic science, 60(5), 519-525 (2009-10-14)
Hinokitiol is found in the heartwood of several cupressaceous plants and is frequently added to cosmetic products such as hair restorers, skin lotions, and body soaps because of its potent and broad-spectrum antibacterial activity. In this study, we established a
Ransika De Alwis et al.
Journal of plant physiology, 166(7), 720-728 (2008-11-26)
Elicitor treatment initiates defense responses in cultured Cupressus lusitanica cells. In order to investigate the defense mechanism with a yeast extract elicitor, we carried out solid-phase microextraction coupled with gas chromatography for monoterpene analysis. Ten hydrocarbon monoterpenes, including high amounts
Toyotaka Murakami et al.
Neuroreport, 23(18), 1071-1076 (2012-11-07)
Predator odors, such as 2,5-dihydro-2,4,5-trimethylthiazoline (TMT), induce a stress-like behavior in some rodents, and there is activation of a complex mix of brain regions including the anterior piriform cortex (APC) and the bed nucleus of stria terminalis (BST). In contrast
Junichiro Ishii et al.
Animal science journal = Nihon chikusan Gakkaiho, 83(1), 36-42 (2012-01-19)
This study evaluated the effects of hinokitiol (a natural antibacterial compound extracted from Thujopsis dolabrata var. hondai) and an organic acid mixture (citrate content 50%) on ruminal fermentation. Antibacterial properties were examined by measuring minimal inhibitory concentration. Hinokitiol at 1.56µg/mL
Antibacterial activity of beta-thujaplicin.
T J Trust et al.
Canadian journal of microbiology, 19(11), 1341-1346 (1973-11-01)
Maria Koufaki et al.
European journal of medicinal chemistry, 45(3), 1107-1112 (2010-01-05)
beta-Thujaplicin (hinokitiol or 2-hydroxy-4-isopropyl-2,4,6-cycloheptatrien-1-one), a natural tropolone, shows numerous activities while its synthetic analogues were found to exhibit anticancer and anti-ischemic activity. However, the ability of tropolone derivatives to protect neuronal cells from oxidative stress-induced cell damage has not been
Yasuhiko Higashi et al.
Journal of cosmetic science, 64(5), 381-389 (2013-10-22)
Hinokitiol, a potent, broad-spectrum antibacterial agent, is a component of various personal care products. In this study, the concentration of hinokitiol in skin lotion was analyzed by means of high-performance liquid chromatography-ultraviolet detection (380 nm) after precolumn derivatization with 4-fluoro-7-nitro-2,1
Antiviral activity of the zinc ionophores pyrithione and hinokitiol against picornavirus infections.
B M Krenn et al.
Journal of virology, 83(1), 58-64 (2008-10-17)
We have discovered two metal ion binding compounds, pyrithione (PT) and hinokitiol (HK), that efficiently inhibit human rhinovirus, coxsackievirus, and mengovirus multiplication. Early stages of virus infection are unaffected by these compounds. However, the cleavage of the cellular eukaryotic translation
Jong Yuh Cherng et al.
The American journal of Chinese medicine, 40(2), 387-398 (2012-03-16)
Solar UV radiation damages human skin by affecting skin tone and resiliency and leads to premature aging (photoaging). The skin damage is caused by the activation of the AP-1 transcription factor, which increases matrix metalloproteinase (MMP) expression and collagen degradation.
E Zachary Oblak et al.
Organic & biomolecular chemistry, 10(43), 8597-8604 (2012-10-04)
A direct route to analogs of the naturally occurring tropolone β-thujaplicin has been developed in just four steps from furan. Using this method, a series of derivatives were synthesized and evaluated. Several of these compounds demonstrated very high levels of
Ryuichi Fujisaki et al.
The Southeast Asian journal of tropical medicine and public health, 43(2), 270-279 (2012-10-23)
Abstract. The anti-plasmodial activity of 47 essential oils and 10 of their constituents were screened for in vitro activity against Plasmodium falciparum. Five of these essential oils (sandalwood, caraway, monarda, nutmeg, and Thujopsis dolabrata var. hondai) and 2 constituents (thymoquinone
Yu-Tzu Tsao et al.
International journal of molecular sciences, 17(2), 248-248 (2016-02-24)
H inokitiol purified from the heartwood of cupressaceous plants has had various biological functions of cell differentiation and growth. Hinokitiol has been demonstrated as having an important role in anti-inflammation and anti-bacteria effect, suggesting that it is potentially useful in
Shicheng Liu et al.
Cancer letters, 286(2), 240-249 (2009-07-28)
Increasing evidence has confirmed that hinokitiol (beta-thujaplicin), a tropolone-related compound, exhibits anticancer activity in a variety of cancers through inhibition of cell proliferation. The present study indicates that hinokitiol selectively inhibits cell growth and DNA synthesis in FEM human melanoma
M-F Shih et al.
International journal of immunopathology and pharmacology, 25(1), 39-48 (2012-04-18)
β-thujaplicin, an active constituent from Chamaecyparis obtusa, has been shown to have acaricidal and antimicrobial effects. Very few studies have focused on the potential of the anti-inflammatory effect of β-thujaplicin. Moreover, its capability of inhibiting inflammatory mediators e.g. TNF-a gene
Y M Cho et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 49(8), 1782-1786 (2011-05-12)
Myocarditis has been reported in male F344 rats given a diet containing hinokitiol (HT). A subchronic toxicity study was here performed to re-evaluate toxic effects of HT in both sexes of F344 rats with dietary administration at concentrations of 0%
Yun Chen et al.
Virus research, 204, 58-67 (2015-04-23)
In our previous study, Bush Sophora Root polysaccharide (BSRPS) and its sulfate (sBSRPS) exhibited anti-duck virus hepatitis (DVH) abilities as well as anti-oxidative and immuno-enhancement effects. The aim of this paper was to ulteriorly investigate the exact anti-DVH mechanisms of
J Zhao et al.
Applied microbiology and biotechnology, 55(3), 301-305 (2001-05-09)
Production of a novel antimicrobial tropolone, beta-thujaplicin, in Cupressus lusitanica suspension cultures was studied by using a variety of chemicals and fungal elicitors. Sodium alginate, chitin, and methyl jasmonate resulted in 2-, 2.5-, and 3-fold higher beta-thujaplicin production, respectively, than
Myong Jin Lee et al.
Biochemical and biophysical research communications, 396(2), 370-375 (2010-04-27)
Hypoxia-inducible factor (HIF)-1 has been established as a master regulator of vascular responses to hypoxia and ischemia by driving transcriptional activation of angiogenic factors. Oxygen- and 2-oxoglutarate (2-OG)-dependent, iron(II) containing HIF-specific prolyl-4-hydroxylases (PHDs) and factor inhibiting HIF-1alpha (FIH-1) catalyze the
Jian Zhao et al.
Journal of experimental botany, 54(383), 647-656 (2003-01-30)
The biosynthesis of a phytoalexin, beta-thujaplicin, in Cupressus lusitanica cell cultures can be stimulated by a yeast elicitor, H(2)O(2), or methyl jasmonate. Lipoxygenase activity was also stimulated by these treatments, suggesting that the oxidative burst and jasmonate pathway may mediate
Hyang Hee Joo et al.
Drug delivery, 15(1), 19-22 (2008-01-17)
In vitro permeation of hinokitiol (HKL) through hairless mouse skin was investigated using a diffusion cell. Either propylene glycol (PG) or ethanol (EtOH) was used as a vehicle for HKL. After applying the HKL solutions of 0.5%. 1%, 2%, and
Jeffrey P Gilbard et al.
Cornea, 29(5), 559-563 (2010-03-24)
Time-kill testing was performed for a linalool-hinokitiol-based eyelid cleanser against Pseudomonas aeruginosa, Moraxella catarrhalis, Escherichia coli, Serratia marcescens, Staphylococcus aureus, methicillin-resistant S. aureus (MRSA), Staphylococcus epidermidis, and Pityrosporum ovale to evaluate its efficacy. An inoculum of 1 mL of each
Nami Komaki et al.
Biological & pharmaceutical bulletin, 31(4), 735-737 (2008-04-02)
The growth of Candida albicans was dose-dependently inhibited by addition of hinokitiol. The sensitivity of C. albicans to hinokitiol under aerobic conditions was higher than that under anaerobic conditions. Amount of ATP in C. albicans was not inhibited by hinokitiol
Tsair-Bor Yen et al.
Bioresource technology, 99(11), 4871-4877 (2007-11-06)
The ethanolic extract of Calocedrus macrolepis var. formosana heartwood was screened for antifungal compounds by agar dilution assay and liquid chromatography. Two compounds, beta-thujaplicin and gamma-thujaplicin, responsible for the antifungal property of C. macrolepis var. formosana heartwood were isolated by
Yu-Jing Zhu et al.
Journal of enzyme inhibition and medicinal chemistry, 25(6), 798-803 (2010-06-29)
The inhibitory effects of hinokitiol, a constituent of the woody oils isolated from Cupressaceae heartwood, on mushroom tyrosinase and melanin formation in B16 melanoma cells as well as its antimicrobial activity were investigated. Our results showed that hinokitiol could strongly
J Ye et al.
Eye (London, England), 29(7), 964-971 (2015-05-09)
This study assessed the anti-inflammatory effect and mechanism of action of hinokitiol in human corneal epithelial (HCE) cells. HCE cells were incubated with different concentrations of hinokitiol or dimethylsulfoxide (DMSO), which served as a vehicle control. Cell viability was evaluated
Yaeno Arima et al.
The Journal of antimicrobial chemotherapy, 51(1), 113-122 (2002-12-21)
Beta-thujaplicin (hinokitiol) is a tropolone-related compound purified from the wood of Chamaecyparis obtusa, SIEB: et Zucc. and Thuja plicata D. Don. All Staphylococcus aureus isolates were inhibited by beta-thujaplicin with MICs of 1.56-3.13 mg/L. However, a paradoxical zone phenomenon occurred
Amy R Cameron et al.
Metallomics : integrated biometal science, 2(3), 195-203 (2010-11-12)
Metal-binding compounds have recently been reported to have anti-hyperglycaemic properties in vivo. In the current study, we have investigated the ability of these compounds and related structures to induce insulin-like signal transduction to downstream effectors such as the transcription factor
Lisa Mayr et al.
Nature communications, 11(1), 1775-1775 (2020-04-15)
The increased incidence of inflammatory bowel disease (IBD) has become a global phenomenon that could be related to adoption of a Western life-style. Westernization of dietary habits is partly characterized by enrichment with the ω-6 polyunsaturated fatty acid (PUFA) arachidonic
S Kwon et al.
Acta biologica Hungarica, 59(3), 347-355 (2008-10-09)
beta-Thujaplicin (hinokitiol) is a tropolone derivative present in the heartwood of cupressaceous plants and is used as a medicine, a food additive, and a preservative, and in cosmetics as hair tonic. The cultured plant cells of Nicotiana tabacum glycosylated beta-thujaplicin
Kuan H Lin et al.
Biochemical pharmacology, 85(10), 1478-1485 (2013-03-12)
Hinokitiol is a tropolone-related bioactive compound that has been used in hair tonics, cosmetics, and food as an antimicrobial agent. Recently, hinokitiol has attracted considerable interest because of its anticancer activities. Platelet activation plays a crucial role in atherothrombotic processes.
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