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Ting Ting Zhao, Keon Sung Shin, Hyun Jin Park, Kyung Sook Kim, Kung Eun Lee, Yoon Jeong Cho, Myung Koo Lee
This study investigated the effects of (-)-sesamin on memory deficits induced by chronic electric footshock (EF)-induced stress in mice. Mice were treated with (-)-sesamin (25 and 50mg/kg, p.o., daily for 21day) prior to chronic EF stress (0.6mA, 1s every 5s for 3min, daily for 21day). Transfer retention latencies in the elevated plus maze test and N-methyl-d-aspartate (NMDA) receptor (type 1) phosphorylation in the hippocampus increased with chronic EF stress, and they were reduced by treatment with (-)-sesamin at both doses...
October 4, 2016: Neuroscience Letters
Vinod Bhatt, Sushila Sharma, Neeraj Kumar, Upendra Sharma, Bikram Singh
The current study presents isolation and characterization of twelve compounds including catechin (1), isovitexin (2), hesperidin (3), psoralin (4), eudesmin (5), kobusin (6), fargesin (7), sesamin (8), asarinin (9), planispine-A (10), α-sanshool (11) and vitexin (12), from the leaves of Zanthoxylum armatum. Further, two rapid and simple ultra performance liquid chromatography-diode array detection (UPLC-DAD) methods were developed for the simultaneous quantitative determination of isolated compounds from Z...
September 26, 2016: Journal of Pharmaceutical and Biomedical Analysis
Takahiro Eitsuka, Naoto Tatewaki, Hiroshi Nishida, Kiyotaka Nakagawa, Teruo Miyazawa
Tocotrienol (T3), unsaturated vitamin E, is gaining a lot of attention owing to its potent anticancer effect, since its efficacy is much greater than that of tocopherol (Toc). Various factors are known to be involved in such antitumor action, including cell cycle arrest, apoptosis induction, antiangiogenesis, anti-metastasis, nuclear factor-κB suppression, and telomerase inhibition. Owing to a difference in the affinity of T3 and Toc for the α-tocopherol transfer protein, the bioavailability of orally ingested T3 is lower than that of Toc...
2016: International Journal of Molecular Sciences
Linxia Wu, Li Yu, Xiaoxia Ding, Peiwu Li, Xianhong Dai, Xiaomei Chen, Haiyan Zhou, Yizhen Bai, Jian Ding
Graphene oxide was fabricated by a simple method and applied to magnetic solid-phase extraction. In a pretreatment procedure before the sesamol, sesamin and sesamolin in sesame oil were detected by high performance liquid chromatography. Several parameters affecting the extraction efficiency were investigated, including the type and volume of desorption solvent, desorption time and the amount of sorbent. Under the optimized conditions, the detection limits of sesamol, sesamin, and sesamolin were 0.05μg/g, 0...
February 15, 2017: Food Chemistry
Ruijuan Zhang, Yan Yu, Senke Hu, Jinghua Zhang, Haixia Yang, Bei Han, Yue Cheng, Xiaoqin Luo
Nonalcoholic fatty liver disease (NAFLD) is defined by a nonalcohol relevant pathological accumulation of fat in the liver. Previous studies have shown that sesamin exerts antioxidant effects and improves lipid metabolism of the fatty liver. In this study, we hypothesized that sesamin improves lipid homeostasis of Sprague-Dawley rats fed a high-fat diet (HFD) by regulating the expression of genes related to de novo lipogenesis and β-oxidation. We induced NAFLD in rats with HFD and examined the effect of sesamin in vivo...
September 2016: Nutrition Research
Miki Takahashi, Yuzo Nishizaki, Naoki Sugimoto, Hiroaki Takeuchi, Kazuya Nakagawa, Hiroshi Akiyama, Kyoko Sato, Koichi Inoue
In Asian countries, sesame seed oil unsaponified matter is used as a natural food additive due to its associated antioxidant effects. We determined and purified the primary lignans sesamin and sesamolin in sesame seed oil unsaponified matter using reversed-phase liquid chromatography coupled with photodiode array and tandem mass spectrometry and high-speed countercurrent chromatography. Calibration curves showed good correlation coefficients (r(2) > 0.999, range 0.08 and/or 0.15 to 5 μg/mL) with a limit of detection (at 290 nm) of 0...
October 2016: Journal of Separation Science
Majid Mohammad Shahi, Mehrnoosh Zakerzadeh, Mehrnoosh Zakerkish, Mehdi Zarei, Azadeh Saki
BACKGROUND: Sesamin is one of the most abundant lignans in sesame and has multiple functions and high values such as antioxidative effect and promoting-immunity function. The aim of this study was to evaluate the effects of sesamin supplementation on glycemic status, serum levels of inflammatory markers and adiponectinin patients with type 2 diabetes mellitus. MATERIAL AND METHODS: Forty-eight patients with type 2 diabetes participated in this double-blind, randomized, placebo-controlled clinical trial...
July 22, 2016: Journal of Dietary Supplements
Takuto Kumano, Etsuko Fujiki, Yoshiteru Hashimoto, Michihiko Kobayashi
Sesamin is one of the major lignans found in sesame oil. Although some microbial metabolites of sesamin have been identified, sesamin-metabolic pathways remain uncharacterized at both the enzyme and gene levels. Here, we isolated microorganisms growing on sesamin as a sole-carbon source. One microorganism showing significant sesamin-degrading activity was identified as Sinomonas sp. no. 22. A sesamin-metabolizing enzyme named SesA was purified from this strain and characterized. SesA catalyzed methylene group transfer from sesamin or sesamin monocatechol to tetrahydrofolate (THF) with ring cleavage, yielding sesamin mono- or di-catechol and 5,10-methylenetetrahydrofolate...
August 9, 2016: Proceedings of the National Academy of Sciences of the United States of America
Manatsanan Khansai, Kanchanit Boonmaleerat, Peraphan Pothacharoen, Thanyaluck Phitak, Prachya Kongtawelert
BACKGROUND: Rheumatoid arthritis (RA) is an autoimmune disease associated with chronic inflammatory arthritis. TNF-α and OSM are pro-inflammatory cytokines that play a key role in RA progression. Thus, reducing the effects of both cytokines is practical in order to relieve the progression of the disease. This current study is interested in sesamin, an active compound in sesame seeds. Sesamin has been shown to be a chondroprotective agent in osteoarthritis models. Here, we have evaluated a porcine cartilage explant as a cartilage degradation model related to RA induced by TNF-α and/or OSM in order to investigate the effects of sesamin on TNF-α and OSM in the cartilage degradation model...
2016: BMC Complementary and Alternative Medicine
Fidelis Samita, Charles Otieno Ochieng, Philip Okinda Owuor, Lawrence Onyango Arot Manguro, Jacob Ogweno Midiwo
A new β-carboline alkaloid named sacleuximine A (1) together with known compounds palmatine (2), isotetrandrine (3), trans-N-feruloyltyramine (4), trans-N-caffeoyltyramine (5), yangambin (6), syringaresinol (7), sesamin (8), (+) epi-quercitol (9), 4-hydroxybenzaldehyde (10), β-sitosterol (11), quercetin 3-O-rutinoside (12) and myricetin 3-O-β-glucose (1→6) α-rhamnoside (13) have been isolated from methanol extract of Triclisia sacleuxii aerial parts. Compounds 1-10 were evaluated for their cytotoxicity against human adenocarcinoma (HeLa), human hepatocarcinoma (Hep3B) and human breast carcinoma (MCF-7) cells lines and also for antibacterial activities against both Gram-positive and Gram-negative bacteria...
July 3, 2016: Natural Product Research
Olusola Bodede, Shakira Shaik, Moganavelli Singh, Roshila Moodley
BACKGROUND: Zanthoxylum capense (small knobwood) is a South African species known for a wide range of anecdotal uses. However, there is a dearth of information on its phytoconstitutional make-up, specifically its knobs, with only a few reports on the bioactive compounds that could justify its ethnomedicinal use. OBJECTIVES: This work aimed to identify the active principles in Z. capense and evaluate their cytotoxicity against breast cancer tumor cells. METHOD: Extracts from the stem bark, knobs and leaves were purified using chromatographic methods and characterized using spectroscopic techniques...
June 26, 2016: Anti-cancer Agents in Medicinal Chemistry
Ke Li, Xia Gong, Ge Kuang, Rong Jiang, Jingyuan Wan, Bin Wang
Ischemia reperfusion injury (IRI) is a leading cause of acute kidney injury with high morbidity and mortality due to limited therapy. Here, we examine whether sesamin attenuates renal IRI in an animal model and explore the underlying mechanisms. Male mice were subjected to right renal ischemia for 30 min followed by reperfusion for 24 h with sesamin (100 mg/kg) during which the left kidney was removed. Renal damage and function were assessed subsequently. The results showed that sesamin reduced kidney ischemia reperfusion injury, as assessed by decreased serum creatinine (Scr) and Blood urea nitrogen (BUN), alleviated tubular damage and apoptosis...
2016: American Journal of Translational Research
Wisuttaya Worawalai, Phonpimon Khongchai, Nantaporn Surachaitanawat, Preecha Phuwapraisirisan
Furofuran lignans such as sesamin have been recognized as promising antidiabetic agents as they possess curative as well as preventive effects toward diabetes complications. However, to date the structure-activity relationship has not been investigated due to the lack of a practical synthetic route capable of producing diverse furofuran lignans. Herein, we first introduced a single-step synthesis of these compounds starting from samin (4). Reaction of samin with a variety of electron-rich phenolics under acidic conditions afforded a total of 23 diverse furofuran lignans...
June 23, 2016: Archives of Pharmacal Research
P S Yashaswini, A G Appu Rao, Sridevi A Singh
Reactive oxygen species, the byproducts of oxygenases reaction, when in excess, promote degenerative diseases like cardiovascular, cancer and arthritis. Sesame lignans- sesamin, sesamolin and the phenolic degradation product of sesamolin, sesamol, are empirically known for their health promoting properties like antioxidant, antimutagenic, antiaging and antiinflammatory activities. In the current study, the effect of sesamol on the inflammatory oxygenase - lipoxygenase (LOX) was investigated. Enzyme kinetics and spectroscopic techniques were used to understand the inhibition mechanism...
June 15, 2016: International Journal of Biological Macromolecules
Saif Ahmad, Nehal M ElSherbiny, Mohammad Sarwar Jamal, Faisal A Alzahrani, Rizwanul Haque, Raziuddin Khan, Syed Kashif Zaidi, Mohammed H AlQahtani, Gregory I Liou, Kanchan Bhatia
Diabetic retinopathy (DR) is the common cause of diabetic vascular complications that leads to the blindness in the working age population throughout the world. Free radicals mediated oxidative stress and inflammation play a significant role in pathophysiology of DR. To find a new and safe drug to treat DR is still challenging and for that purpose the natural compounds may be therapeutic agents. Here we show that sesamin (SES), which is the main component of sesame seed and its oil, and has been reported as potent antioxidant and neuroprotective, could be a therapeutic agent in DR...
June 15, 2016: Journal of Neuroimmunology
Shigeru Katayama, Haruka Sugiyama, Shoko Kushimoto, Yusuke Uchiyama, Masato Hirano, Soichiro Nakamura
Alzheimer's disease (AD) is characterized by the progressive accumulation of extracellular β-amyloid (Aβ) aggregates. Recently, the senescence-accelerated mouse-prone 8 (SAMP8) model was highlighted as a useful model of age-related AD. Therefore, we used the SAMP8 mouse to investigate the preventive effects of sesame lignans on the onset of AD-like pathology. In preliminary in vitro studies, sesaminol showed the greatest inhibitory effect on Aβ oligomerization and fibril formation relative to sesamin, sesamolin, and sesaminol triglucoside...
June 22, 2016: Journal of Agricultural and Food Chemistry
Ruijuan Zhang, Yan Yu, Jianjun Deng, Chao Zhang, Jinghua Zhang, Yue Cheng, Xiaoqin Luo, Bei Han, Haixia Yang
The study explored the protective effect of sesamin against lipid-induced renal injury and hyperlipidemia in a rat model. An animal model of hyperlipidemia was established in Sprague-Dawley rats. Fifty-five adult Sprague-Dawley rats were divided into five groups. The control group was fed a standard diet, while the other four groups were fed a high-fat diet for 5 weeks to induce hyperlipidemia. Three groups received oral sesamin in doses of 40, 80, or 160 mg/(kg·day). Seven weeks later, the blood lipids, renal function, antioxidant enzyme activities, and hyperoxide levels in kidney tissues were measured...
2016: Nutrients
Kang Li, Yan Li, Bo Xu, Lu Mao, Jie Zhao
Intervertebral disc (IVD) degeneration contributes to most spinal degenerative diseases, while treatment inhibiting IVD degeneration is still in the experimental stage. Sesamin, a bioactive component extracted from sesame, has been reported to exert chondroprotective and anti-inflammatory effects. Here, we analyzed the anti-inflammatory and anti-catabolic effects of sesamin on rat IVD in vitro and ex vivo. Results show that sesamin significantly inhibits the lipopolysaccharide (LPS)-induced expression of catabolic enzymes (MMP-1, MMP-3, MMP-13, ADAMTS-4, ADAMTS-5) and inflammation factors (IL-1β, TNF-α, iNOS, NO, COX-2, PGE2) in a dose-dependent manner in vitro...
September 2016: Connective Tissue Research
H Guo, Y Liu, L Wang, G Zhang, S Su, R Zhang, J Zhang, A Li, C Shang, B Bi, Z Li
Hepatorenal toxicities are an important side effect of anthracycline antibiotics. The objective of this study was to determine whether sesamin (Ses) protects against acute doxorubicin (DOX)-induced hepatorenal toxicities. Rats received daily treatment with either 0.5% carboxymethylcellulose (10 mL/kg) or Ses (10, 20 and 40 mg/kg) orally for 10 days, followed by an intravenous injection at day 8 of either saline (10 mL/kg) or DOX (20 mg/kg). Hepatorenal toxicity was assessed by measuring the levels of serum creatinine (Cre), blood urea nitrogen (BUN), aspartate aminotransferase (AST), alanine aminotransferase (ALT) and alkaline phosphatase (ALP)...
January 28, 2016: Human & Experimental Toxicology
Christian Savard, Perrine Nogues, Alexandre Boyer, Younes Chorfi
The worldwide contamination of grains designated to human and animal feeding with Fusarium mycotoxins is a significant problem. Among Fusarium mycotoxins, deoxynivalenol (DON) and zearalenone (ZEA) are the most prevalent mycotoxins found in cereals. Co-occurrence of DON and ZEA is also very frequent and indicates that these mycotoxins might be involved in a wide range of synergistic or additive interactions. Both mycotoxins have been linked to various male reproduction problems including downregulation of steroidogenesis...
February 3, 2016: Toxicology
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