Monoterpenes

Publication Title: 
Pharmaceutical Biology

Citronellal is a monoterpene reported to be a major component of the essential oils in various aromatic species of plants. The present study evaluated the central nervous system depressant and antinociceptive properties of citronellal through behavioral experimental models. Following intraperitoneal injection, citronellal induced the reduction of spontaneous activity, ataxia, analgesia, and sedation.

Author(s): 
Melo, M. S.
Sena, L. C. S.
Barreto, F. J. N.
Bonjardim, L. R.
Almeida, J. R. G. S.
Lima, J. T.
De Sousa, D. P.
Quintans-Júnior, L. J.
Publication Title: 
Zeitschrift Für Naturforschung. C, Journal of Biosciences

Carvacrol (CARV) is a phenolic monoterpene present in the essential oil of several aromatic spices. The purpose of the present study was to evaluate the antinociceptive effect of CARV on formalin-, capsaicin-, and glutamate-induced orofacial nociception in mice.

Author(s): 
Guimarães, Adriana G.
Silva, Francilene V.
Xavier, Maria A.
Santos, Márcio R. V.
Oliveira, Rita C. M.
Oliveira, Makson G. B.
Oliveira, Aldeídia P.
De Souza, Clisiane C.
Quintans-Júnior, Lucindo J.
Publication Title: 
Zeitschrift F�r Naturforschung. C, Journal of Biosciences

The sedative properties of the essential oil of Lavender (Lavandula angustifolia Miller) and of its main constituents--linalool and linalyl acetate--were investigated in mice followed up in a series of experimental procedures. The significant decrease in the motility of female and male laboratory animals under standardized experimental conditions is found to be closely dependent on the exposure time to the drugs. Nevertheless after an injection of caffeine into mice a hyperactivity was observed which was reduced to nearly a normal motility only by inhalation of these fragrance drugs.

Author(s): 
Buchbauer, G.
Jirovetz, L.
J�ger, W.
Dietrich, H.
Plank, C.
Publication Title: 
Chemical Senses

Scientific research on the effects of essential oils on human behavior lags behind the promises made by popular aromatherapy. Nearly all aspects of human behavior are closely linked to processes of attention, the basic level being that of alertness, which ranges from sleep to wakefulness. In our study we measured the influence of essential oils and components of essential oils [peppermint, jasmine, ylang-ylang, 1,8-cineole (in two different dosages) and menthol] on this core attentional function, which can be experimentally defined as speed of information processing.

Author(s): 
Ilmberger, J.
Heuberger, E.
Mahrhofer, C.
Dessovic, H.
Kowarik, D.
Buchbauer, G.
Publication Title: 
Brazilian Journal of Medical and Biological Research = Revista Brasileira De Pesquisas M�dicas E Biol�gicas / Sociedade Brasileira De Biof�sica ... [et Al.]

Terpineol, a volatile terpenoid alcohol of low toxicity, is widely used in the perfumery industry. It is an important chemical constituent of the essential oil of many plants with widespread applications in folk medicine and in aromatherapy. The effects of terpineol on the compound action potential (CAP) of rat sciatic nerve were studied. Terpineol induced a dose-dependent blockade of the CAP. At 100 microM, terpineol had no demonstrable effect.

Author(s): 
Moreira, M. R.
Cruz, G. M.
Lopes, M. S.
Albuquerque, A. A.
Leal-Cardoso, J. H.
Publication Title: 
Contact Dermatitis

Essential or fragrant oils are volatile odourous mixtures of organic chemical compounds that are widely used in aromatherapy and in the perfume industry. Because of their frequent use, allergy to essential oils is being increasingly recognized. We report 2 cases of multiple allergies to essential oils in professional aromatherapists. Gas chromatography/mass spectrometry was used to analyse the oils in order to identify a common allergen responsible for the contact dermatitis.

Author(s): 
Dharmagunawardena, B.
Takwale, A.
Sanders, K. J.
Cannan, S.
Rodger, A.
Ilchyshyn, A.
Publication Title: 
Mediators of Inflammation

BACKGROUND: In aromatherapy, essential oils are used as anti-inflammatory remedies, but experimental studies on their action mechanisms are very limited. AIMS: To assess their anti-inflammatory activities, effects of essential oils on neutrophil activation were examined in vitro. METHODS: Neutrophil activation was measured by tumor necrosis factor-alpha (TNF-alpha)-induced adherence reaction of human peripheral neutrophils.

Author(s): 
Abe, Shigeru
Maruyama, Naho
Hayama, Kazumi
Ishibashi, Hiroko
Inoue, Shigeharu
Oshima, Haruyuki
Yamaguchi, Hideyo
Publication Title: 
Life Sciences

In this study the antinociceptive and the gastroprotective effects of orally administered or inhaled Lavandula hybrida Reverchon "Grosso" essential oil, and its principal constituents linalool and linalyl acetate were evaluated in rodents. Either when orally administered (100 mg/kg) or inhaled for 60 min lavender essential oil significantly reduced the acetic acid-writhing response in a naloxone-sensitive manner.

Author(s): 
Barocelli, E.
Calcina, F.
Chiavarini, M.
Impicciatore, M.
Bruni, R.
Bianchi, A.
Ballabeni, V.
Publication Title: 
International Review of Neurobiology

Despite the increasing use of aromatherapy oils, there have not been many studies exploring the biological activities of bergamot (Citrus bergamia, Risso) essential oil (BEO). Recently, we have investigated the effects of BEO injected into the plantar surface of the hindpaw in the capsaicin test in mice. The intraplantar injection of capsaicin produced an intense and short-lived licking/biting response toward the injected hindpaw. The capsaicin-induced nociceptive response was reduced significantly by intraplantar injection of BEO.

Author(s): 
Sakurada, Tsukasa
Kuwahata, Hikari
Katsuyama, Soh
Komatsu, Takaaki
Morrone, Luigi Antonio
Corasaniti, Maria Tiziana
Bagetta, Giacinto
Sakurada, Shinobu
Publication Title: 
Phytomedicine: International Journal of Phytotherapy and Phytopharmacology

Aromatherapy uses essential oils (EOs) for several medical purposes, including relaxation. The association between the use of aromas and a decrease in anxiety could be a valuable instrument in managing anxiety in an ever increasing anxiogenic daily life style. Linalool is a monoterpene commonly found as the major volatile component of EOs in several aromatic plant species. Adding to previously reported sedative effects of inhaled linalool, the aim of this study was to investigate the effects of inhaled linalool on anxiety, aggressiveness and social interaction in mice.

Author(s): 
Linck, V. M.
da Silva, A. L.
Figueir�, M.
Caram�o, E. B.
Moreno, P. R. H.
Elisabetsky, E.

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