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https://www.readbyqxmd.com/read/29034833/drug-therapy-for-abdominal-aortic-aneurysms-utilizing-omega-3-unsaturated-fatty-acids-and-their-derivatives
#1
Daisuke Akagi, Katsuyuki Hoshina, Toshiaki Watanabe, Micheal S Conte
Abdominal aortic aneurysms (AAA) are life-threatening because of the potential for rupture, resulting in death. The current standard treatment for AAA is surgery, comprising laparotomic graft replacement and endovascular repair. However, because surgery carries the risk of major complications and re-intervention, medical therapies are desirable because they may reduce the occurrence of enlargement and rupture. Recent research shows that the progression of AAA is related to inflammatory reactions, especially those in the NF-kB pathway...
October 13, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/29031390/effects-of-postnatal-omega-3-fatty-acid-supplementation-on-offspring-pro-resolving-mediators-of-inflammation-at-6-months-and-5-years-of-age-a-double-blind-randomized-controlled-clinical-trial
#2
V H L See, E Mas, S L Prescott, L J Beilin, S Burrows, A E Barden, R C Huang, T A Mori
BACKGROUND: Resolution of inflammation is an active process involving specialised pro-resolving mediators (SPMs) generated from the omega-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Omega-3 fatty acid supplementation during infancy may provide an intervention strategy to modify SPMs and reduce oxidative stress. This study evaluates the effect of omega-3 fatty acid supplementation in infancy on SPMs and F2-isoprostanes from 6 months to 5 years of age. METHODS: In a double-blind, placebo-controlled, parallel-group study design, 420 infants were randomized to a daily supplement of omega-3 fatty acids (280mg DHA and 110mg EPA) or olive oil (control), from birth to age 6 months...
November 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/29021582/novel-mechanism-of-regulation-of-the-5-lipoxygenase-leukotriene-b4-pathway-by-high-density-lipoprotein-in-macrophages
#3
Shigeyasu Tsuda, Masakazu Shinohara, Toshihiko Oshita, Manabu Nagao, Nobuaki Tanaka, Takeshige Mori, Tetsuya Hara, Yasuhiro Irino, Ryuji Toh, Tatsuro Ishida, Ken-Ichi Hirata
High-density lipoprotein (HDL) interacts with various cells, particularly macrophages, in functional cell-HDL interactions. Here, we found that HDL protein quality and lipid quality play critical roles in HDL functions. HDL fractions from healthy volunteers (HDLHealthy) and patients with recurrent coronary atherosclerotic disease (HDLCAD) were prepared. To analyse functional HDL-macrophage interactions, macrophages were co-incubated with each HDL, and lipid mediator production was assessed by liquid chromatography/mass spectrometry-based metabololipidomics...
October 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29021496/comparison-of-the-distribution-of-unsaturated-fatty-acids-at-the-sn-2-position-of-phospholipids-and-triacylglycerols-in-marine-fishes-and-mammals
#4
Fumiaki Beppu, Keiko Yasuda, Ayako Okada, Yoshitsugu Hirosaki, Masako Okazaki, Naohiro Gotoh
Highly unsaturated fatty acid (HUFA) binding at the sn-2 position of phospholipids (PL) becomes a resource for prostaglandin, leukotriene, resolvin, and protectin synthesis. Both triacylglycerol (TAG) and PL synthesis pathways in vivo are via phosphatidic acid; therefore, the distribution of fatty acid species at the sn-2 position must theoretically be the same for TAG and PL if rearrangement does not occur. However, it is known that little HUFA is located at the sn-2 position of TAG in marine mammals. Therefore, distribution of fatty acid species at the sn-2 position of TAG and PL was compared between marine fishes and mammals in this study...
October 11, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/28993702/erv1-overexpression-in-myeloid-cells-protects-against-high-fat-diet-induced-obesity-and-glucose-intolerance
#5
Corneliu Sima, Eduardo Montero, Daniel Nguyen, Marcelo Freire, Paul Norris, Charles N Serhan, Thomas E Van Dyke
Non-resolving inflammation is a central pathologic component of obesity, insulin resistance, type 2 diabetes and associated morbidities. The resultant hyperglycemia is deleterious to the normal function of many organs and its control significantly improves survival and quality of life for patients with diabetes. Macrophages play critical roles in both onset and progression of obesity-associated insulin resistance. Here we show that systemic activation of inflammation resolution prevents from morbid obesity and hyperglycemia under dietary overload conditions...
October 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28987721/circulating-inflammation-resolving-lipid-mediators-rvd1-and-dha-are-decreased-in-patients-with-acutely-symptomatic-carotid-disease
#6
Hernan A Bazan, Yan Lu, Bokkyoo Jun, Zhide Fang, T Cooper Woods, Song Hong
BACKGROUND: Efficient biomarkers for early prediction and diagnosis of an acutely symptomatic carotid plaque rupture event are currently lacking, impairing the ability to diagnose and treat patients with an acute plaque rupture events in a timely fashion. Resolvins are endogenous inflammation-resolving lipid mediators that are induced by inflammatory insults. We hypothesized that resolvin and other lipid profiles in sera likely mark the process towards plaque rupture. METHODS: Circulating lipids associated with plaque rupture events were quantitatively profiled via targeted mediator-lipidomics using ultraperformance liquid chromatography tandem mass spectrometry in patients with acutely symptomatic and asymptomatic carotid disease...
October 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/28978222/the-eicosanoids-redox-regulated-lipid-mediators-in-immunometabolic-disorders
#7
Ana Carolina Araujo, Craig E Wheelock, Jesper Z Haeggström
SIGNIFICANCE: The oxidation of arachidonic acid via cyclooxygenase and lipoxygenase activity to produce eicosanoids during inflammation is a well-known biosynthetic pathway. These lipid mediators are involved in fever, pain and thrombosis and are generated from a variety of cell types as well as through interactions between immune cells and epithelial/endothelial cells. Metabolic disorders including hyperlipidemia, hypertension, and diabetes are associated with chronic low-grade inflammation, impacting the immune system and promoting a variety of chronic diseases...
October 5, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28925017/early-treatment-with-resolvin-e1-facilitates-myocardial-recovery-from-ischemia-in-mice
#8
Guizhu Liu, Qian Liu, Yujun Shen, Deping Kong, Yanjun Gong, Bo Tao, Guilin Chen, Shumin Guo, Juanjuan Li, Shengkai Zuo, Yu Yu, Huiyong Yin, Li Zhang, Bin Zhou, Colin D Funk, Jian Zhang, Ying Yu
BACKGROUND AND PURPOSE: An appropriate inflammatory response is necessary for cardiac healing after acute myocardial infarction (MI). Resolvin E1 (RvE1) is an anti-inflammatory and pro-resolution lipid mediator derived from eicosapentaenoic acid. The purpose of this study was to investigate the potential effects of RvE1 on cardiac function recovery after MI in mice. EXPERIMENTAL APPROACH: Acute MI was induced by surgical ligation of the left anterior descending artery (LAD) in mice...
September 19, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28919798/comparative-effects-of-the-%C3%AF-3-polyunsaturated-fatty-acid-derivatives-resolvins-e1-and-d1-and-protectin-dx-in-models-of-inflammation-and-pain
#9
Flávia Cs Fonseca, Ricardo M Orlando, Regina Mm Turchetti-Maia, Janetti Nogueira de Francischi
PURPOSE: Specialized pro-resolving lipid mediators (SPMs), also known as lipoxins, resolvins (Rvs), protectins and maresins, have been implicated in the resolution of the inflammatory process. However, a systematic comparison of their activity in the relief of inflammation and pain models is still lacking. MATERIALS AND METHODS: The effects of Rvs E1 and D1 and protectin DX (PDX) were assessed in rat paws inflamed by the standard proinflammatory stimulus carrageenan or by histamine, 5-hydroxytryptamine, substance P or prostaglandin E2...
2017: Journal of Inflammation Research
https://www.readbyqxmd.com/read/28900017/omega-3-fatty-acids-and-inflammatory-processes-from-molecules-to-man
#10
REVIEW
Philip C Calder
Inappropriate, excessive or uncontrolled inflammation contributes to a range of human diseases. Inflammation involves a multitude of cell types, chemical mediators and interactions. The present article will describe nutritional and metabolic aspects of omega-6 (n-6) and omega-3 (n-3) fatty acids and explain the roles of bioactive members of those fatty acid families in inflammatory processes. Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are n-3 fatty acids found in oily fish and fish oil supplements...
October 15, 2017: Biochemical Society Transactions
https://www.readbyqxmd.com/read/28892824/resolvin-d1-increases-mucin-secretion-in-cultured-rat-conjunctival-goblet-cells-via-multiple-signaling-pathways
#11
Marit Lippestad, Robin R Hodges, Tor P Utheim, Charles N Serhan, Darlene A Dartt
Purpose: Goblet cells in the conjunctiva secrete mucin into the tear film protecting the ocular surface. The proresolution mediator resolvin D1 (RvD1) regulates mucin secretion to maintain homeostasis during physiological conditions and in addition, actively terminates inflammation. We determined the signaling mechanisms used by RvD1 in cultured rat conjunctival goblet cells to increase intracellular [Ca2+] ([Ca2+]i) and induce glycoconjugate secretion. Methods: Increase in [Ca2+]i were measured using fura 2/AM and glycoconjugate secretion determined using an enzyme-linked lectin assay with the lectin Ulex Europaeus Agglutinin 1...
September 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28883634/association-of-the-resolvin-precursor-17-hdha-but-not-d-or-e-series-resolvins-with-heat-pain-sensitivity-and-osteoarthritis-pain-in-humans
#12
Ana M Valdes, Srinivasarao Ravipati, Cristina Menni, Abhishek Abhishek, Sarah Metrustry, Juliette Harris, Ayrun Nessa, Frances M K Williams, Tim D Spector, Michael Doherty, Victoria Chapman, David A Barrett
Resolvins are omega-3 fatty acid derived potent bioactive lipids that resolve inflammation and modulate transient receptor potential channels. Exogenous administration of the resolvin precursor 17-HDHA shows a strong analgesic effect in animal models of osteoarthritis and acute inflammatory pain, but has not been studied in humans. Our aim was to assess the role of 17-HDHA and resolvins in heat pain sensitivity and in osteoarthritis pain in humans. Resolvins D1, D2, D3, D5, E1 and 17-HDHA, were measured by liquid chromatography-mass spectrometry and tested for association with heat pain thresholds in 250 healthy volunteers who had undergone quantitative sensory testing...
September 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28877131/resolvin-d2-limits-secondary-tissue-necrosis-after-burn-wounds-in-rats
#13
Yoshitaka Inoue, Yuk Ming Liu, Masayuki Otawara, Isabel Chico Calero, Ahhyun Stephanie Nam, Yong-Ming Yu, Philip Chang, Kathryn L Butler, Rosalynn M Nazarian, Jeremy Goverman, Benjamin J Vakoc, Daniel Irimia
Secondary burn necrosis is the expansion and deepening of the original burn injury several days after injury. Limiting the extent of secondary burn necrosis may improve outcomes. In this study, we examined the ability of the lipid mediator of inflammation-resolution resolvin D2 (RvD2) and chromatin-lysing enzyme (DNase) to reduce secondary burn necrosis. Male Wistar rats were injured using a brass comb with 4 prongs heated in boiling water. This method created 2 parallel rows of 4 rectangular burned areas separated by 3 unburned interspaces...
August 31, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28837866/protective-effect-of-aspirin-triggered-resolvin-d1-on-hepatic-ischemia-reperfusion-injury-in-rats-the-role-of-mir-146b
#14
Tao Zhang, Huan-Huan Xiu, Jia-Xin Liu, Yi Ma, Kang-Qing Xu, Wen-Qi Huang
PURPOSE: Inflammatory responses play an important role in the tissue injury during liver ischemia/reperfusion (I/R). We previously reported that resolvin D1 (RvD1) administrated prior to hepatic I/R attenuates liver injury through inhibition of inflammatory response. In this study, we investigated the effects of the aspirin-triggered resolvin D1 (AT-RvD1) on hepatic I/R and the role of miR-146b in this process. METHODS: Partial warm ischemia was performed in the left and middle hepatic lobes of Sprague-Dawley rats for 1h, followed by 6h of reperfusion...
August 21, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28807031/inflammation-and-pro-resolution-inflammation-after-hepatobiliary-surgery
#15
Juan P Cata, Jose F Velasquez, Maria F Ramirez, Jean-Nicolas Vauthey, Vijaya Gottumukkala, Claudius Conrad, Bradford J Kim, Thomas Aloia
BACKGROUND: The magnitude of the perioperative inflammatory response plays a role in surgical outcomes. However, few studies have explored the mechanisms of the resolution of inflammation in the context of surgery. Here, we described the temporal kinetics of interleukin-6, cortisol, lipoxin A4, and resolvin D in patients who underwent oncologic liver resections. METHODS: All patients gave written informed consent. Demographic and perioperative surgical data were collected, along with blood samples, before surgery and on the mornings of postoperative days 1, 3, and 5...
August 10, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28803495/molecular-signature-of-complex-regional-pain-syndrome-crps-and-its-analysis
#16
Simone König, Tanja Schlereth, Frank Birklein
Complex Regional Pain Syndrome (CRPS) is a rare, but often disabling pain disease. Biomarkers are lacking, but several inflammatory substances have been associated with the pathophysiology. This review outlines the current knowledge with respect to target biomolecules and the analytical tools available to measure them. Areas covered: Targets include cytokines, neuropeptides and resolvins; analysis strategies are thus needed for different classes of substances such as proteins, peptides, lipids and small molecules...
August 17, 2017: Expert Review of Proteomics
https://www.readbyqxmd.com/read/28802833/new-pro-resolving-n-3-mediators-bridge-resolution-of-infectious-inflammation-to-tissue-regeneration
#17
REVIEW
Charles N Serhan, Nan Chiang, Jesmond Dalli
While protective, the acute inflammatory response when uncontrolled can lead to further tissue damage and chronic inflammation that is now widely recognized to play important roles in many commonly occurring diseases, such as cardiovascular disease, neurodegenerative diseases, metabolic syndrome, and many other diseases of significant public health concern. The ideal response to initial challenges of the host is complete resolution of the acute inflammatory response, which is now recognized to be a biosynthetically active process governed by specialized pro-resolving mediators (SPM)...
September 1, 2017: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/28800645/analysis-of-endogenous-lipids-during-intestinal-wound-healing
#18
Yunna Lee, Jieun Choo, Su Jin Kim, Gwangbeom Heo, Charalabos Pothoulakis, Yong-Hak Kim, Eunok Im
Intestinal wound healing is a new therapeutic goal for inflammatory bowel disease (IBD) as complete healing of the mucosa is the key element of clinical remission in IBD. Previous studies showed that termination of inflammation can be achieved by adding pro-resolving lipids like DHA and EPA exogenously. However, the roles of these lipids in mucosal healing have not been investigated. To recapitulate intestinal healing process, mice were received dextran sodium sulfate (DSS) for 7 days in the drinking water followed by regular tap water for 5 additional days...
2017: PloS One
https://www.readbyqxmd.com/read/28794232/resolvin-d1-improves-the-resolution-of-inflammation-via-activating-nf-%C3%AE%C2%BAb-p50-p50-mediated-cyclooxygenase-2-expression-in-acute-respiratory-distress-syndrome
#19
Ye Gao, Huawei Zhang, Lingchun Luo, Jing Lin, Dan Li, Sisi Zheng, Hua Huang, Songfan Yan, Jingxiang Yang, Yu Hao, Hui Li, Fang Gao Smith, Shengwei Jin
Acute respiratory distress syndrome (ARDS) is a severe illness characterized by uncontrolled inflammation. The resolution of inflammation is a tightly regulated event controlled by endogenous mediators, such as resolvin D1 (RvD1). Cyclooxygenase-2 (COX-2) has been reported to promote inflammation, along with PGE2, in the initiation of inflammation, as well as in prompting resolution, with PGD2 acting in the later phase of inflammation. Our previous work demonstrated that RvD1 enhanced COX-2 and PGD2 expression to resolve inflammation...
August 9, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28782089/the-role-of-lipids-in-corneal-diseases-and-dystrophies-a-systematic-review
#20
REVIEW
Tyler G Rowsey, Dimitrios Karamichos
Corneal diseases are an extensive cause of blindness worldwide and continue to persist as a challenging public health concern. Recently, various lipid-based therapies have been advocated for the modulation of corneal diseases; however, the number of studies is still very limited. Here we focus on developments and challenges on lipid-based therapies for dry eye disease, diabetic neuropathy, and Fuchs' endothelial corneal dystrophy. All three diseases are highly prevalent conditions and involve corneal stress and inflammation...
December 2017: Clinical and Translational Medicine
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