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Wang Y, Wu J, Gong Y, Wang H, Wu T, Liu R, Sui W, Zhang M. Peanut oil odor enhances the immunomodulatory effect on immunosuppressed mice by regulating the cAMP signaling pathway via the brain-spleen axis. Food Funct 2024; 15:1994-2007. [PMID: 38288526 DOI: 10.1039/d3fo03629d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
The role of sniffing relative to immune function has attracted considerable attention. The present study investigated the immunomodulatory effects of peanut oil odor on cyclophosphamide (CTX)-induced immunosuppressed mice. The subset of mice subjected to prolonged (8 h) sniffing peanut oil odor (PL) demonstrated significantly elevated levels of agouti-related peptide, neuropeptide Y, and glutamate (p < 0.05), whereas it significantly down-regulated the level of γ-aminobutyric acid in the brain (p < 0.05). Furthermore, immunohistochemistry results indicated significantly increased expression of mGluR1/5 and decreased expression of GABABR in the hippocampus and hypothalamus (p < 0.05) of the PL group. Additionally, the PL group had significantly up-regulated expression levels of cAMP, Epac, Rap1, ERK1/2 and PKA (p < 0.05) and remarkably increased phosphorylation of CREB in the cAMP signaling pathway (p < 0.05), which influenced the central nervous system. Moreover, compared with CTX-induced mice, the percentages of peripheral blood T lymphocytes (CD3+CD4+ and CD3+CD8+) and the levels of splenic cytokines (IL-2, IL-4, and TNF-α) were significantly increased following PL treatment (p < 0.05). The PL group also showed significantly up-regulated expression levels of cAMP, p-p65, and p-IκBα in the spleen (p < 0.05) by western blot analysis. In summary, PL intervention significantly up-regulated the expression levels of cAMP in the brain (p < 0.05), with subsequent transfer of cAMP to the spleen which promoted phosphorylation of p65 and IκBα. This series of events enhanced the immunity of mice, which confirmed the regulatory effect of PL on the cAMP signaling pathway, thereby enhancing immune function via the brain-spleen axis.
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Affiliation(s)
- Yijin Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Jianfu Wu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Ying Gong
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Huiting Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Tao Wu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Rui Liu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Wenjie Sui
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Min Zhang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China.
- China-Russia Agricultural Processing Joint Laboratory, Tianjin Agricultural University, Tianjin 300392, PR China
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Ge L, Liu J, Kang X, Wang W, Zhang D. Association of serum individual and mixed aldehydes with depressive symptoms in the general population: A machine learning study. J Affect Disord 2024; 345:8-17. [PMID: 37865348 DOI: 10.1016/j.jad.2023.10.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/16/2023] [Accepted: 10/18/2023] [Indexed: 10/23/2023]
Abstract
BACKGROUND Humans have many opportunities to be exposed to aldehydes which have potential mechanisms for causing depression. We aimed to explore the relationships between serum individual and mixed aldehydes with depressive symptoms in general population. METHODS The data was extracted from the National Health and Nutrition Examination Survey 2013-2014. Depressive symptoms were assessed by Patient Health Questionnaire-9. Weighted binomial logistic regression and Bayesian kernel machine regression (BKMR) model were used to explore the association of six individual aldehyde and mixed aldehydes with depressive symptoms, respectively. Sex stratification analysis and sensitivity analysis were conducted. RESULTS A total of 701 participants were included. We found a positive association between the highest (Q4) versus lowest quartile (Q1) of butyraldehyde with depressive symptoms (OR: 2.86, 95 % CI: 1.22-6.68), and a negative association between the Q3 versus Q1 of benzaldehyde (0.21, 0.07-0.60) and isopentanaldehyde (0.28, 0.08-0.90) with depressive symptoms in multivariate-adjusted model. The mixed aldehydes were positively associated with depressive symptoms using BKMR model, and butyraldehyde and heptanaldehyde were the dominant aldehydes. Several aldehydes, such as butyraldehyde and benzaldehyde, interacted with each other in their effects on depressive symptoms. The results of gender stratification analysis showed that butyraldehyde was the major contributor to the total effect of aldehydes on depressive symptoms in males, while heptanaldehyde was the dominant aldehyde in females. LIMITATIONS Causality cannot be inferred in this cross-sectional study. CONCLUSIONS Our study indicated that mixed aldehydes can increase the risk of depressive symptoms, of which butyraldehyde and heptanaldehyde were the major contributing aldehydes.
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Affiliation(s)
- Lin Ge
- Department of Epidemiology and Health Statistics, the School of Public Health of Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China
| | - Jin Liu
- Department of Epidemiology and Health Statistics, the School of Public Health of Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China
| | - Xiao Kang
- Department of Epidemiology and Health Statistics, the School of Public Health of Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China
| | - Weijing Wang
- Department of Epidemiology and Health Statistics, the School of Public Health of Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China.
| | - Dongfeng Zhang
- Department of Epidemiology and Health Statistics, the School of Public Health of Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China.
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Mansour E, Palzur E, Broza YY, Saliba W, Kaisari S, Goldstein P, Shamir A, Haick H. Noninvasive Detection of Stress by Biochemical Profiles from the Skin. ACS Sens 2023; 8:1339-1347. [PMID: 36848629 DOI: 10.1021/acssensors.3c00011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Stress is a leading cause of several disease types, yet it is underdiagnosed as current diagnostic methods are mainly based on self-reporting and interviews that are highly subjective, inaccurate, and unsuitable for monitoring. Although some physiological measurements exist (e.g., heart rate variability and cortisol), there are no reliable biological tests that quantify the amount of stress and monitor it in real time. In this article, we report a novel way to measure stress quickly, noninvasively, and accurately. The overall detection approach is based on measuring volatile organic compounds (VOCs) emitted from the skin in response to stress. Sprague Dawley male rats (n = 16) were exposed to underwater trauma. Sixteen naive rats served as a control group (n = 16). VOCs were measured before, during, and after induction of the traumatic event, by gas chromatography linked with mass spectrometry determination and quantification, and an artificially intelligent nanoarray for easy, inexpensive, and portable sensing of the VOCs. An elevated plus maze during and after the induction of stress was used to evaluate the stress response of the rats, and machine learning was used for the development and validation of a computational stress model at each time point. A logistic model classifier with stepwise selection yielded a 66-88% accuracy in detecting stress with a single VOC (2-hydroxy-2-methyl-propanoic acid), and an SVM (support vector machine) model showed a 66-72% accuracy in detecting stress with the artificially intelligent nanoarray. The current study highlights the potential of VOCs as a noninvasive, automatic, and real-time stress predictor for mental health.
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Affiliation(s)
- Elias Mansour
- Department of Chemical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Eilam Palzur
- Eliachar Research Laboratory, Galilee Medical Center, P.O. Box 21, Nahariya 2210001, Israel
| | - Yoav Y Broza
- Department of Chemical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Walaa Saliba
- Department of Chemical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Sharon Kaisari
- Integrative Pain Laboratory (iPainLab), School of Public Health, University of Haifa, Haifa 2611001, Israel
| | - Pavel Goldstein
- Integrative Pain Laboratory (iPainLab), School of Public Health, University of Haifa, Haifa 2611001, Israel
| | - Alon Shamir
- Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 3200003, Israel
- Mazor Mental Health Center, Akko 2423314, Israel
| | - Hossam Haick
- Department of Chemical Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel
- Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa 3200003, Israel
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Sun M, Nakashima T, Yoshimura Y, Honden A, Nakagawa T, Nakashima Y, Kawaguchi M, Takamori Y, Koshi Y, Sawada R, Nishida S, Ohnuki K, Shimizu K. Physiological and Psychological Effects of Volatile Organic Compounds from Dried Common Rush ( Juncus effusus L. var. decipiens Buchen.) on Humans. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19031856. [PMID: 35162880 PMCID: PMC8834784 DOI: 10.3390/ijerph19031856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 01/24/2022] [Accepted: 01/24/2022] [Indexed: 02/04/2023]
Abstract
This study compared the participants’ physiological responses and subjective evaluations of air scented with different concentrations of common rush (Juncus effusus L. var. decipiens Buchen.) (30 g and 15 g, with fresh air as a control). We asked 20 participants to complete a series of visual discrimination tasks while inhaling two different air samples. We evaluated (1) brain activity, (2) autonomic nervous activity, and (3) blood pressure and pulse rate, (4) in combination with self-evaluation. In addition, we quantified the concentrations of volatile organic compounds. The participants reported the scent to be sour, pungent, and smelly; this impression was likely caused by hexanal and acetic acid. Although the self-evaluations showed that participants did not enjoy the scent, their alpha amplitudes of electroencephalogram and parasympathetic nervous activity were increased, suggesting that participants were relaxed in this atmosphere. Moreover, a lower concentration resulted in a greater induction of relaxation. While the air was not pleasant-smelling, the volatile organic compounds present had a positive psychophysiological impact.
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Affiliation(s)
- Minkai Sun
- School of Architecture and Urban Planning, Suzhou University of Science and Technology, Suzhou 215000, China;
- Department of Agro-Environmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka 8190395, Japan; (T.N.); (Y.Y.); (A.H.); (T.N.)
| | - Taisuke Nakashima
- Department of Agro-Environmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka 8190395, Japan; (T.N.); (Y.Y.); (A.H.); (T.N.)
| | - Yuri Yoshimura
- Department of Agro-Environmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka 8190395, Japan; (T.N.); (Y.Y.); (A.H.); (T.N.)
| | - Akiyoshi Honden
- Department of Agro-Environmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka 8190395, Japan; (T.N.); (Y.Y.); (A.H.); (T.N.)
| | - Toshinori Nakagawa
- Department of Agro-Environmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka 8190395, Japan; (T.N.); (Y.Y.); (A.H.); (T.N.)
- Department of Biological Resources Management, The University of Shiga Prefecture, Hikone 5228533, Japan
| | - Yu Nakashima
- Kumamoto Prefectural Agricultural Research Center Agricultural System Research Institute, Yatsushiro 8694201, Japan; (Y.N.); (M.K.); (Y.T.); (Y.K.); (R.S.); (S.N.)
| | - Makoto Kawaguchi
- Kumamoto Prefectural Agricultural Research Center Agricultural System Research Institute, Yatsushiro 8694201, Japan; (Y.N.); (M.K.); (Y.T.); (Y.K.); (R.S.); (S.N.)
| | - Yukimitsu Takamori
- Kumamoto Prefectural Agricultural Research Center Agricultural System Research Institute, Yatsushiro 8694201, Japan; (Y.N.); (M.K.); (Y.T.); (Y.K.); (R.S.); (S.N.)
| | - Yoshitaka Koshi
- Kumamoto Prefectural Agricultural Research Center Agricultural System Research Institute, Yatsushiro 8694201, Japan; (Y.N.); (M.K.); (Y.T.); (Y.K.); (R.S.); (S.N.)
| | - Rimpei Sawada
- Kumamoto Prefectural Agricultural Research Center Agricultural System Research Institute, Yatsushiro 8694201, Japan; (Y.N.); (M.K.); (Y.T.); (Y.K.); (R.S.); (S.N.)
| | - Shinsuke Nishida
- Kumamoto Prefectural Agricultural Research Center Agricultural System Research Institute, Yatsushiro 8694201, Japan; (Y.N.); (M.K.); (Y.T.); (Y.K.); (R.S.); (S.N.)
| | - Koichiro Ohnuki
- Faculty of Humanity-Oriented Science and Engineering, Kindai University, Iizuka 8200011, Japan;
| | - Kuniyoshi Shimizu
- Department of Agro-Environmental Sciences, Faculty of Agriculture, Kyushu University, Fukuoka 8190395, Japan; (T.N.); (Y.Y.); (A.H.); (T.N.)
- Correspondence: ; Tel.: +81-92-802-4675
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Ueno H, Shimada A, Suemitsu S, Murakami S, Kitamura N, Wani K, Takahashi Y, Matsumoto Y, Okamoto M, Ishihara T. Hexanal inhalation affects cognition and anxiety-like behavior in mice. Z NATURFORSCH C 2020; 75:409-415. [PMID: 32589610 DOI: 10.1515/znc-2019-0215] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 05/26/2020] [Indexed: 12/27/2022]
Abstract
Hexanal is a 6-carbon aldehyde that smells like green leaves and urine to mammals. However, its physiological effects remain unclear. In particular, the effects of hexanal inhalation on the central nervous system have not been clarified. We investigated hexanal inhalation in mice and conducted a series of behavioral experiments to examine the neuropsychological effects of hexanal. After inhaling hexanal emissions for 30 min, mice were subjected to an open field test, a hot plate test, a grip strength test, an elevated plus maze test, a Y-maze test, a tail suspension test, and a forced swim test to examine the effects of hexanal odor on mouse behavior. Compared to controls, mice that inhaled hexanal exhibited reduced anxiety-like behavior in the elevated plus maze test. In addition, mice that inhaled hexanal displayed significantly improved spatial cognitive ability in the Y-maze test. However, in some behavioral experiments there was no significant difference between control mice and mice that inhaled hexanal. The results of this study suggest that hexanal inhalation causes anxiolytic effects and improves cognitive function in mice. These findings may have implications for safety management procedures and determining the effective use of household goods containing hexanal, though further work is required.
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Affiliation(s)
- Hiroshi Ueno
- Department of Medical Technology, Kawasaki University of Medical Welfare, Okayama, 701-0193, Japan
| | - Atsumi Shimada
- Division of Food and Nutrition, Nakamura Gakuen University Junior College, Fukuoka, 814-0198, Japan
| | - Shunsuke Suemitsu
- Department of Psychiatry, Kawasaki Medical School, Okayama, 701-0192, Japan
| | - Shinji Murakami
- Department of Psychiatry, Kawasaki Medical School, Okayama, 701-0192, Japan
| | - Naoya Kitamura
- Department of Psychiatry, Kawasaki Medical School, Okayama, 701-0192, Japan
| | - Kenta Wani
- Department of Psychiatry, Kawasaki Medical School, Okayama, 701-0192, Japan
| | - Yu Takahashi
- Department of Psychiatry, Kawasaki Medical School, Okayama, 701-0192, Japan
| | - Yosuke Matsumoto
- Department of Neuropsychiatry, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, 700-8558, Japan
| | - Motoi Okamoto
- Department of Medical Technology, Graduate School of Health Sciences, Okayama University, Okayama, Japan
| | - Takeshi Ishihara
- Department of Psychiatry, Kawasaki Medical School, Okayama, 701-0192, Japan
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7
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Faro LRF, Fajardo D, Durán R, Alfonso M. Characterization of acute intrastriatal effects of paraoxon on in vivo dopaminergic neurotransmission using microdialysis in freely moving rats. Toxicol Lett 2018; 299:124-128. [PMID: 30292885 DOI: 10.1016/j.toxlet.2018.09.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 08/08/2018] [Accepted: 09/28/2018] [Indexed: 11/26/2022]
Abstract
Paraoxon (POX) is an extremely neurotoxic organophosphorous compound (OP) which main toxic mechanism is the irreversible inhibition of cholinesterase. Although the cholinergic system has always been linked as responsible for its acute effects, experimental studies have suggested that the dopaminergic system also may be a potential target for OPs. Based on this, in this study, the acute intrastriatal effects of POX on dopaminergic neurotransmission were characterized in vivo using brain microdialysis in freely moving rats. In situ administration of POX (5, 25 and 50 nmol, 60 min) significantly increased the striatal dopamine overflow (to 435 ± 79%, 1066 ± 120%, and 1861 ± 332%, respectively), whereas a lower concentration (0.5 nmol) did not affect dopamine levels. Administration of POX (25 nmol) to atropine (15 nmol) pretreated animals, produced an increase in dopamine overflow that was ∼63% smaller than those observed in animals not pretreated. Administration of POX (25 nmol) to mecamylamine (35 nmol) pretreated animals did not significantly affect the POX-induced dopamine release. Our results suggest that acute administration of POX increases the dopamine release in a concentration-dependent way, being this release dependent on acetylcholinesterase inhibition and mediated predominantly by the activation of striatal muscarinic receptors, once the muscarinic antagonist atropine partially blocks the POX-induced dopamine release.
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Affiliation(s)
- Lilian R F Faro
- Department of Functional Biology and Health Sciences, Faculty of Biology, University of Vigo, Campus Lagoas Marcosende, 36310 Vigo, Spain.
| | - Daniel Fajardo
- Department of Functional Biology and Health Sciences, Faculty of Biology, University of Vigo, Campus Lagoas Marcosende, 36310 Vigo, Spain
| | - Rafael Durán
- Department of Functional Biology and Health Sciences, Faculty of Biology, University of Vigo, Campus Lagoas Marcosende, 36310 Vigo, Spain
| | - Miguel Alfonso
- Department of Functional Biology and Health Sciences, Faculty of Biology, University of Vigo, Campus Lagoas Marcosende, 36310 Vigo, Spain
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Khalil MNA, Fekry MI, Farag MA. Metabolome based volatiles profiling in 13 date palm fruit varieties from Egypt via SPME GC-MS and chemometrics. Food Chem 2016; 217:171-181. [PMID: 27664623 DOI: 10.1016/j.foodchem.2016.08.089] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 08/21/2016] [Accepted: 08/24/2016] [Indexed: 01/18/2023]
Abstract
Dates (Phoenix dactylifera L.) are distributed worldwide as major food complement providing a source of sugars and dietary fiber as well as macro- and micronutrients. Although phytochemical analyses of date fruit non-volatile metabolites have been reported, much less is known about the aroma given off by the fruit, which is critical for dissecting sensory properties and quality traits. Volatile constituents from 13 date varieties grown in Egypt were profiled using SPME-GCMS coupled to multivariate data analysis to explore date fruit aroma composition and investigate potential future uses by food industry. A total of 89 volatiles were identified where lipid-derived volatiles and phenylpropanoid derivatives were the major components of date fruit aroma. Multivariate data analyses revealed that 2,3-butanediol, hexanal, hexanol and cinnamaldehyde contributed the most to classification of different varieties. This study provides the most complete map of volatiles in Egyptian date fruit, with Siwi and Sheshi varieties exhibiting the most distinct aroma among studied date varieties.
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Affiliation(s)
- Mohammed N A Khalil
- Pharmacognosy Department, College of Pharmacy, Cairo University, Kasr el Aini st., Cairo P.B. 11562, Egypt
| | - Mostafa I Fekry
- Pharmacognosy Department, College of Pharmacy, Cairo University, Kasr el Aini st., Cairo P.B. 11562, Egypt
| | - Mohamed A Farag
- Pharmacognosy Department, College of Pharmacy, Cairo University, Kasr el Aini st., Cairo P.B. 11562, Egypt.
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cis-3-Hexenol and trans-2-hexenal mixture prevents development of PTSD-like phenotype in rats. Behav Brain Res 2016; 297:251-8. [DOI: 10.1016/j.bbr.2015.10.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 10/03/2015] [Accepted: 10/08/2015] [Indexed: 02/05/2023]
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10
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Abstract
Most 'green' plants form green leaf volatiles (GLVs). GLVs are a familiar plant secondary metabolite, but knowledge of their physiological and ecological functions is limited. GLV formation is tightly suppressed when plant tissues are intact, but upon mechanical wounding, herbivore attack, or abiotic stresses, GLVs are formed rapidly, within seconds or minutes. Thus, this may be an important system for defense responses, allowing plants to protect themselves from damage as soon as possible. Because GLV formation in the natural environment is roughly related to the degree of stress in the plant life, sensing the amount of GLVs in the atmosphere might allow plants to recognize their surroundings. Because some plants respond to GLVs, they may communicate with GLVs. GLVs that contain α,β-unsaturated carbonyl groups might activate signaling systems regulated under the redox state of plant cells. Plasma membranes would also be targets of interactions with GLVs. Additionally, the metabolism of GLVs in plant cells after absorption from the atmosphere could also be classified as a plant-plant interaction.
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Kako H, Kobayashi Y, Yokogoshi H. Dopamine release from rat pheochromocytoma (PC12) cells and rat brain striata induced by a series of straight carbon chain aldehydes with variations in carbon chain length and functional groups. Eur J Pharmacol 2012; 691:86-92. [DOI: 10.1016/j.ejphar.2012.07.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Revised: 06/27/2012] [Accepted: 07/02/2012] [Indexed: 11/15/2022]
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12
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Zhang X, Liu L, Zhang X, Ma K, Rao Y, Zhao Q, Li F. Analytical methods for brain targeted delivery system in vivo: perspectives on imaging modalities and microdialysis. J Pharm Biomed Anal 2011; 59:1-12. [PMID: 22088476 DOI: 10.1016/j.jpba.2011.08.042] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Revised: 08/29/2011] [Accepted: 08/29/2011] [Indexed: 01/05/2023]
Abstract
Since the introduction of microdialysis in 1974, the semi-invasive analytical method has grown exponentially. Microdialysis is one of the most potential analysis technologies of pharmacological drug delivery to the brain. In recent decades, analysis of chemicals targeting the brain has led to many improvements. It seems likely that fluorescence imaging was limited to ex vivo and in vitro applications with the exception of several intravital microscopy and photographic imaging approaches. X-ray computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography (PET) have been commonly utilized for visualization of distribution and therapeutic effects of drugs. The efficient analytical methods for studies of brain-targeting delivery system is a major challenge in detecting the disposition as well as the variances of the factors that regulate the substances delivery into the brain. In this review, we highlight some of the ongoing trends in imaging modalities and the most recent developments in the field of microdialysis of live animals and present insights into exploiting brain disease for therapeutic and diagnostics purpose.
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Affiliation(s)
- Xingguo Zhang
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou 310053, China
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