keyword
MENU ▼
Read by QxMD icon Read
search

EET

keyword
https://www.readbyqxmd.com/read/28526610/11-12-epoxyeicosatrienoic-acid-11-12-eet-reduces-excitability-and-excitatory-transmission-in-the-hippocampus
#1
Nandkishor K Mule, Anette C Orjuela Leon, John R Falck, Michael Arand, Anne Marowsky
Recent studies suggest a role for the arachidonic acid-derived epoxyeicosatrienoic acids (EETs) in attenuating epileptic seizures. However, their effect on neurotransmission has never been investigated in detail. Here, we studied how 11,12- and 14,15 EET affect excitability and excitatory neurotransmission in mouse hippocampus. 11,12 EET (2 μM), but not 14,15 EET (2 μM), induced the opening of a hyperpolarizing K(+) conductance in CA1 pyramidal cells. This action could be blocked by BaCl2, the G protein blocker GDPβ-S and the GIRK1/4 blocker tertiapin Q and the channel was thus identified as a GIRK channel...
May 16, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28515648/evaluation-of-antioxidative-activity-of-various-levels-of-ethanol-extracted-tomato-powder-and-application-to-pork-patties
#2
Hyeong Sang Kim, Koo Bok Chin
This study was performed to evaluate antioxidant activity of tomato powder extracted by various concentrations of ethanol (0, 25, 50, 75, 100%) and to evaluate the physicochemical properties and antioxidant activities of pork patties with ethanol extracted tomato (EET) powder. No differences in the contents of total of individual phenolic compounds including gallic acid and catechin, were observed among the treatments (p>0.05). Among the various concentrations, 50% and 75% EET powder showed the highest free radical scavenging and iron chelating activities (p<0...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/28508993/14-15-eet-suppresses-neuronal-apoptosis-in-ischemia-reperfusion-through-the-mitochondrial-pathway
#3
Hui-Xia Geng, Rui-Ping Li, Ying-Ge Li, Xiao-Qing Wang, Li Zhang, Jin-Bo Deng, Lai Wang, Jie-Xin Deng
Neuronal apoptosis mediated by the mitochondrial apoptosis pathway is an important pathological process in cerebral ischemia-reperfusion injury. 14,15-EET, an intermediate metabolite of arachidonic acid, can promote cell survival during ischemia/reperfusion. However, whether the mitochondrial apoptotic pathway is involved this survival mechanism is not fully understood. In this study, we observed that infarct size in ischemia-reperfusion injury was reduced in sEH gene knockout mice. In addition, Caspase 3 activation, cytochrome C release and AIF nuclear translocation were also inhibited...
May 16, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28497947/energy-transfer-kinetics-in-photosynthesis-as-an-inspiration-for-improving-organic-solar-cells
#4
Collins Nganou, Gerhard Lackner, Bezu Teschome, M Jamal Deen, Noam Adir, David Pouhe, Doru C Lupascu, Martin Mkandawire
Clues to designing highly efficient organic solar cells may lie in understanding the architecture of light-harvesting systems and exciton energy transfer (EET) processes in very efficient photosynthetic organisms. Here, we compare the kinetics of excitation energy tunnelling from the intact phycobilisome (PBS) light-harvesting antenna system to the reaction center in photosystem II in intact cells of the cyanobacterium Acaryochloris marina with the charge transfer after conversion of photons into photocurrent in vertically aligned carbon nanotube (va-CNT) organic solar cells with poly(3-hexyl)thiophene (P3HT) as the pigment...
May 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28488585/eets-reduces-lps-induced-hyperpermeability-by-targeting-grp78-mediated-src-activation-and-subsequent-rho-rock-signaling-pathway
#5
Ruolan Dong, Danli Hu, Yan Yang, Zhihui Chen, Menglu Fu, Dao Wen Wang, Xizhen Xu, Ling Tu
Integrity of endothelial barrier is a determinant of the prognosis in the acute lung injury caused by sepsis. The epoxyeicosatrienoic acids (EETs), metabolites of arachidonic acid, exhibit protective effects in various pathogenic states, however, whether EETs play a role in endothelial barrier enhancement and the involved mechanisms remain to be investigated. Here, we show that increased EETs level by endothelial specific cytochrome P450 epoxygenase 2J2 over-expression and soluble epoxide hydrolase (sEH) inhibitor TPPU reduced lipopolysaccharide-induced endothelial hyper-permeability in vivo, accompanied by improved survival of septic mice...
April 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28473204/inhibition-of-soluble-epoxide-hydrolase-reduces-portal-pressure-by-protecting-mesenteric-artery-myogenic-responses-in-cirrhotic-rats
#6
Yijun Huang, Jun Qin, Dong Sun, Houli Jiang, Lei Zheng, Yue He, Liang Gui, Binbin Qian, Chihao Zhang, Meng Luo
Hyperdynamic circulation contributes to the progress of portal hypertension in liver cirrhosis. We investigated the effects of soluble epoxide hydrolase (sEH) inhibition on portal pressure and the myogenic response of mesenteric arteries isolated from cirrhotic rats using the sEH inhibitor t-TUCB (trans-4-{4-[3-(4-trifluoromethoxyphenyl)-ureido] cyclohexyloxy} benzoic acid). Cirrhotic tissues had a higher ratio of epoxyeicosatrienoic acids (EETs) to dihydroxyeicosatrienoic acids (DHETs) following increased CYP2C11 expression, which may be a protective response...
May 1, 2017: Prostaglandins & Other Lipid Mediators
https://www.readbyqxmd.com/read/28470279/synthesis-of-cyclooxygenase-metabolites-of-8-9-epoxyeicosatrienoic-acid-eet-11-and-15-hydroxy-8-9-eets
#7
Bogdan Barnych, Amy A Rand, Tomas Cajka, Kin Sing Stephen Lee, Bruce D Hammock
COX metabolites of 8,9-EET, previously observed as potent mitogenic lipid mediators, were synthesized for the first time by using two synthetic approaches. These synthetic materials allow for structural confirmation of COX metabolites of 8,9-EET and further study of their biological roles.
May 23, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/28454544/attenuation-of-acute-lung-injury-in-a-rat-model-by-semen-cassiae
#8
Xiuqing Chen, Xianming Zhang, Jie Zhang, Yang Gao, Zhaohui Yang, Shanshan Li, Haiwen Dai
BACKGROUND: Acute lung injury (ALI) is an inflammatory disorder. Semen Cassiae has potent anti-inflammatory activities. The aim of our study was to investigate whether Semen Cassiae plays a protective effect on lipopolysaccharide (LPS)-induced ALI and, if so, to elucidate its potential mechanism. METHODS: Male Sprague-Dawley rat lungs were injured by intratracheal instillation of LPS. Rats were treated with Semen Cassiae or vehicle 3 h after LPS challenge. Samples were harvested 24 h post-LPS administration...
April 28, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28451188/organic-linkers-control-the-thermosensitivity-of-the-emission-intensities-from-tb-iii-and-eu-iii-in-a-chameleon-polymer
#9
Miho Hatanaka, Yuichi Hirai, Yuichi Kitagawa, Takayuki Nakanishi, Yasuchika Hasegawa, Keiji Morokuma
Thermometers whose emission color gradually changes with temperature are called chameleon emitters. In this study, we discuss the mechanism of the thermosensitivity of the emission color of polymers that contain two lanthanides (Ln(3+)), e.g., [Tb0.99Eu0.01(hfa)3(linker)] n , where the Ln(3+)(hfa)3 complexes (hfa: hexafluoro acetylacetonato) are connected by a phosphine oxide "linker" molecule. First, the difference in the thermosensitivities of the emissions from Tb(3+) and Eu(3+) are discussed. With increasing temperature, the green-emission intensity from Tb(3+) decreases whereas the red-emission intensity from Eu(3+) does not change...
January 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28450284/eets-promote-hypoxic-pulmonary-vasoconstriction-via-constrictor-prostanoids
#10
Sharath Kandhi, Bin Zhang, Ghezal Froogh, Jun Qin, Norah Alruwali, Yicong Le, Yang-Ming Yang, Sung Hee Hwang, Bruce D Hammock, Michael S Wolin, An Huang, Dong Sun
To test the hypothesis that epoxyeicosatrienoic acids (EETs) facilitate pulmonary responses to hypoxia, male wild type (WT) and soluble epoxide hydrolase knockout (sEH-KO) mice, and WT mice chronically fed a sEH inhibitor (t-TUCB; 1mg/kg/day) were used. Right ventricular systolic pressure (RVSP) was recorded under control and hypoxic conditions. The control RVSP was comparable among all groups. However, hypoxia elicited increases in RVSP in all groups with predominance in sEH-KO and t-TUCB-treated mice. 14,15-EEZE (EET antagonist) attenuated the hypoxia-induced greater elevation of RVSP in sEH-deficient mice, suggesting an EET-mediated increment...
April 27, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28440284/cyp2j2-and-its-metabolites-eets-attenuate-insulin-resistance-via-regulating-macrophage-polarization-in-adipose-tissue
#11
Meiyan Dai, Lujin Wu, Peihua Wang, Zheng Wen, Xizhen Xu, Dao Wen Wang
Macrophages in adipose tissue are associated with obesity-induced low-grade inflammation, which contributed to insulin resistance and the related metabolic diseases. Previous studies demonstrated the beneficial effects of epoxyeicosatrienoic acids (EETs) on metabolic disorders and inflammation. Here we investigated the effects of CYP2J2-EETs-sEH metabolic pathway on insulin resistance in mice and the potential mechanisms. High fat diet (HFD)-induced obesity caused metabolic dysfunction with more weight gain, elevated glucose and lipids levels, impaired glucose tolerance and insulin sensitivity, while increase in EETs level by rAAV-mediated CYP2J2 overexpression, administration of sEH inhibit TUPS or EETs infusion significantly attenuated these metabolic disorders...
April 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28430270/atomistic-non-adiabatic-dynamics-of-the-lh2-complex-with-a-gpu-accelerated-ab-initio-exciton-model
#12
Aaron Sisto, Clem Stross, Marc W van der Kamp, Michael O'Connor, Simon McIntosh-Smith, Graham T Johnson, Edward G Hohenstein, Fred R Manby, David R Glowacki, Todd J Martinez
We recently outlined an efficient multi-tiered parallel ab initio excitonic framework that utilizes time dependent density functional theory (TDDFT) to calculate ground and excited state energies and gradients of large supramolecular complexes in atomistic detail - enabling us to undertake non-adiabatic simulations which explicitly account for the coupled anharmonic vibrational motion of all the constituent atoms in a supramolecular system. Here we apply that framework to the 27 coupled bacterio-chlorophyll-a chromophores which make up the LH2 complex, using it to compute an on-the-fly nonadiabatic surface-hopping (SH) trajectory of electronically excited LH2...
April 21, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28425172/the-homeostatic-and-circadian-sleep-recovery-responses-after-total-sleep-deprivation-in-mice
#13
Garance Dispersyn, Fabien Sauvet, Danielle Gomez-Merino, Sylvain Ciret, Catherine Drogou, Damien Leger, Thierry Gallopin, Mounir Chennaoui
Many studies on sleep deprivation effects lack data regarding the recovery period. We investigated the 2-day homeostatic and circadian sleep recovery response to 24 h of total sleep deprivation (TSD) induced by brief rotation of an activity wheel. Eight mice were implanted with telemetry transmitters (DSI F40-EET) that recorded simultaneously their electroencephalography (EEG), locomotor activity and temperature during 24 h of baseline (BSL), TSD and 2 days of recovery (D1 and D2). In a second experiment, two groups of five non-implanted mice underwent TSD or ad libitum sleep, after which they were killed, adrenal glands were weighed and blood was collected for analysis of corticosterone concentration...
April 20, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28421454/quality-indicators-in-endoscopic-ablation-for-barrett-s-esophagus
#14
REVIEW
Samuel Han, Sachin Wani
Barrett's esophagus (BE) is a well-established premalignant condition for esophageal adenocarcinoma (EAC); a cancer that is associated with a poor 5-year survival rate. Several strategies have been explored in the context of reducing the burden of EAC. Endoscopic eradication therapy (EET) is considered the standard of care for the management of patients with BE with dysplasia and early neoplasia; a practice that has been endorsed by all gastroenterology societal guidelines. The effectiveness of EET has been demonstrated in multiple studies and contemporary management includes a combination of endoscopic mucosal resection (EMR) of all visible lesions followed by eradication of the remaining BE using ablative techniques of which radiofrequency ablation (RFA) has the best evidence supporting effectiveness and safety...
April 18, 2017: Current Treatment Options in Gastroenterology
https://www.readbyqxmd.com/read/28414427/enhancing-extracellular-electron-transfer-of-shewanella-oneidensis-mr-1-through-coupling-improved-flavin-synthesis-and-metal-reducing-conduit-for-pollutant-degradation
#15
Di Min, Lei Cheng, Feng Zhang, Xue-Na Huang, Dao-Bo Li, Dong-Feng Liu, Tai-Chu Lau, Yang Mu, Han-Qing Yu
Dissimilatory metal reducing bacteria (DMRB) are capable of extracellular electron transfer (EET) to insoluble metal oxides, which are used as external electron acceptors by DMRB for their anaerobic respiration. The EET process has important contribution to environmental remediation mineral cycling, and bioelectrochemical systems. However, the low EET efficiency remains to be one of the major bottlenecks for its practical applications for pollutant degradation. In this work, Shewanella oneidensis MR-1, a model DMRB, was used to examine the feasibility of enhancing the EET and its biodegradation capacity through genetic engineering...
April 21, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28411592/on-the-accuracy-of-the-lsc-ivr-approach-for-excitation-energy-transfer-in-molecular-aggregates
#16
Hung-Hsuan Teh, Yuan-Chung Cheng
We investigate the applicability of the linearized semiclassical initial value representation (LSC-IVR) method to excitation energy transfer (EET) problems in molecular aggregates by simulating the EET dynamics of a dimer model in a wide range of parameter regime and comparing the results to those obtained from a numerically exact method. It is found that the LSC-IVR approach yields accurate population relaxation rates and decoherence rates in a broad parameter regime. However, the classical approximation imposed by the LSC-IVR method does not satisfy the detailed balance condition, generally leading to incorrect equilibrium populations...
April 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28411230/interaction-of-12-15-lipoxygenase-with-fatty-acids-alters-the-leukocyte-kinetics-leading-to-improved-post-myocardial-infarction-healing
#17
Ganesh V Halade, Vasundhara Kain, Kevin A Ingle, Sumanth D Prabhu
The metabolic transformation of fatty acids to form oxylipids using 12/15lipoxygenase (LOX) can promote either resolving or non-resolving inflammation. However, the mechanism of how 12/15LOX interacts with PUFA (polyunsaturated fatty acids) in post-myocardial infarction (MI) healing is unclear. Here, we reported the role of 12/15LOX in post-MI cardiac remodeling in a PUFA (10% w/w, 22 Kcal) enriched environment. Wild-type (WT; C57BL/6J) and 12/15LOX null (12/15LOX(-/-)) male mice of 8-12-weeks age were fed PUFA-enriched diet for 1 month and subjected to permanent coronary artery ligation...
April 14, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28396419/cyclooxygenase-derived-proangiogenic-metabolites-of-epoxyeicosatrienoic-acids
#18
Amy A Rand, Bogdan Barnych, Christophe Morisseau, Tomas Cajka, Kin Sing Stephen Lee, Dipak Panigrahy, Bruce D Hammock
Arachidonic acid (ARA) is metabolized by cyclooxygenase (COX) and cytochrome P450 to produce proangiogenic metabolites. Specifically, epoxyeicosatrienoic acids (EETs) produced from the P450 pathway are angiogenic, inducing cancer tumor growth. A previous study showed that inhibiting soluble epoxide hydrolase (sEH) increased EET concentration and mildly promoted tumor growth. However, inhibiting both sEH and COX led to a dramatic decrease in tumor growth, suggesting that the contribution of EETs to angiogenesis and subsequent tumor growth may be attributed to downstream metabolites formed by COX...
April 25, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28392496/preoperative-evaluation-of-the-interface-between-tuberculum-sellae-meningioma-and-the-optic-nerves-on-fast-imaging-with-steady-state-acquisition-for-extended-endoscopic-endonasal-transsphenoidal-surgery
#19
Yasuhiko Hayashi, Daisuke Kita, Issei Fukui, Yasuo Sasagawa, Masahiro Oishi, Osamu Tachibana, Fumiaki Ueda, Mitsutoshi Nakada
INTRODUCTION: Endoscopic endonasal transsphenoidal surgery (EETS) is increasingly applied to treat tuberculum sellae meningiomas. However, if the tumor adheres firmly to the optic nerve, dissection of the interface between both structures should be prudent to preserve visual function. The purpose of this study was to investigate whether tumor adhesion to the optic nerve can be predicted preoperatively by fast imaging with steady-state acquisition (FIESTA). METHODS: Twenty-two patients with tuberculum sellae meningioma treated with EETS were retrospectively identified...
April 6, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28384353/generation-and-characterization-of-epoxide-hydrolase-3-ephx3-deficient-mice
#20
Samantha L Hoopes, Artiom Gruzdev, Matthew L Edin, Joan P Graves, J Alyce Bradbury, Gordon P Flake, Fred B Lih, Laura M DeGraff, Darryl C Zeldin
Cytochrome P450 (CYP) epoxygenases metabolize arachidonic acid into epoxyeicosatrienoic acids (EETs), which play an important role in blood pressure regulation, protection against ischemia-reperfusion injury, angiogenesis, and inflammation. Epoxide hydrolases metabolize EETs to their corresponding diols (dihydroxyeicosatrienoic acids; DHETs) which are biologically less active. Microsomal epoxide hydrolase (EPHX1, mEH) and soluble epoxide hydrolase (EPHX2, sEH) were identified >30 years ago and are capable of hydrolyzing EETs to DHETs...
2017: PloS One
keyword
keyword
45694
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"