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https://www.readbyqxmd.com/read/28807874/docosahexaenoic-acid-increases-the-expression-of-oxidative-stress-induced-growth-inhibitor-1-through-the-pi3k-akt-nrf2-signaling-pathway-in-breast-cancer-cells
#1
Chia-Han Tsai, You-Cheng Shen, Haw-Wen Chen, Kai-Li Liu, Jer-Wei Chang, Pei-Yin Chen, Chen-Yu Lin, Hsien-Tsung Yao, Chien-Chun Li
Oxidative stress-induced growth inhibitor 1 (OSGIN1), a tumor suppressor, inhibits cell proliferation and induces cell death. N-6 and n-3 PUFAs protect against breast cancer, but the molecular mechanisms of this effect are not clear. We investigated the effect of n-6 and n-3 PUFAs on OSGIN1 expression and whether OSGIN1 is involved in PUFA-induced apoptosis in breast cancer cells. We used 100 μM of n-6 PUFAs including arachidonic acid, linoleic acid, and gamma-linolenic acid and n-3 PUFAs including alpha-linolenic acid, eicosapentaenoic acid, and docosahexaenoic acid (DHA)...
August 11, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28776604/the-role-of-diet-physical-activity-body-fatness-and-breastfeeding-in-breast-cancer-in-young-women-epidemiological-evidence
#2
I Isabelle Romieu, A Amadou, V Chajes
The incidence of breast cancer (BC) is rising worldwide, with an increase in aggressive neoplasias in young women. Traditionally, BC in young women has been thought to be etiologically driven, primarily by genetic/hereditary factors. However, these factors explain only a small proportion of BCs, pointing to a role of the environment. Suspected factors responsible for this increase include lifestyle changes, notably alcohol consumption, diet with high intake of refined carbohydrates and saturated fat and low intake of polyunsaturated fatty acids (PUFA), fiber and vitamins (such as folate, vitamin D, and carotenoids), low physical activity, and body fatness, all of which may act from childhood and adolescent years through adulthood...
July 2017: Revista de Investigación Clínica; Organo del Hospital de Enfermedades de la Nutrición
https://www.readbyqxmd.com/read/28770178/chemopreventive-and-chemotherapeutic-effects-of-fish-oil-derived-omega-3-polyunsaturated-fatty-acids-on-colon-carcinogenesis
#3
REVIEW
Ja Young Lee, Tae-Bu Sim, Jeong-Eun Lee, Hye-Kyung Na
Colorectal cancer is the third most common cause of cancer related death in the world. Multiple lines of evidence suggest that there is an association between consumption of dietary fat and colon cancer risk. Not only the amount but also the type and the ratio of fatty acids comprising dietary fats consumed have been implicated in the etiology and pathogenesis of colon cancer. Omega-3 (n-3) polyunsaturated fatty acids (PUFAs), such as docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), have been known to inhibit development of colon cancer by downregulating the expression of genes involved in colon carcinogenesis and also by altering the membrane lipid composition...
July 2017: Clinical Nutrition Research
https://www.readbyqxmd.com/read/28752333/significance-of-long-chain-polyunsaturated-fatty-acids-in-human-health
#4
REVIEW
Rafael Zárate, Nabil El Jaber-Vazdekis, Noemi Tejera, José A Pérez, Covadonga Rodríguez
In the last decades, the development of new technologies applied to lipidomics has revitalized the analysis of lipid profile alterations and the understanding of the underlying molecular mechanisms of lipid metabolism, together with their involvement in the occurrence of human disease. Of particular interest is the study of omega-3 and omega-6 long chain polyunsaturated fatty acids (LC-PUFAs), notably EPA (eicosapentaenoic acid, 20:5n-3), DHA (docosahexaenoic acid, 22:6n-3), and ARA (arachidonic acid, 20:4n-6), and their transformation into bioactive lipid mediators...
December 2017: Clinical and Translational Medicine
https://www.readbyqxmd.com/read/28723414/omega-3-polyunsaturated-fatty-acids-as-a-treatment-strategy-for-nonalcoholic-fatty-liver-disease
#5
REVIEW
Donald B Jump, Kelli A Lytle, Christopher M Depner, Sasmita Tripathy
Obese and type 2 diabetic (T2DM) patients have a high prevalence of nonalcoholic fatty liver disease (NAFLD). NAFLD is a continuum of chronic liver diseases ranging from benign hepatosteatosis to nonalcoholic steatohepatitis (NASH), cirrhosis and primary hepatocellular cancer (HCC). Because of its strong association with the obesity epidemic, NAFLD is rapidly becoming a major public health concern worldwide. Surprisingly, there are no FDA approved NAFLD therapies; and current therapies focus on the co-morbidities associated with NAFLD, namely, obesity, hyperglycemia, dyslipidemia, and hypertension...
July 16, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28713383/the-toxicological-mechanisms-of-environmental-soot-black-carbon-and-carbon-black-focus-on-oxidative-stress-and-inflammatory-pathways
#6
REVIEW
Rituraj Niranjan, Ashwani Kumar Thakur
The environmental soot and carbon blacks (CBs) cause many diseases in humans, but their underlying mechanisms of toxicity are still poorly understood. Both are formed after the incomplete combustion of hydrocarbons but differ in their constituents and percent carbon contents. For the first time, "Sir Percival Pott" described soot as a carcinogen, which was subsequently confirmed by many others. The existing data suggest three main types of diseases due to soot and CB exposures: cancer, respiratory diseases, and cardiovascular dysfunctions...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28697730/dietary-supplementation-of-%C3%AE-linolenic-acid-induced-conversion-of-n-3-lcpufas-and-reduced-prostate-cancer-growth-in-a-mouse-model
#7
Jingjing Li, Zhennan Gu, Yong Pan, Shunhe Wang, Haiqin Chen, Hao Zhang, Wei Chen, Yong Q Chen
BACKGROUND: α-linolenic acid (ALA) is an n-3 polyunsaturated fatty acid (PUFA) and the substrate for long-chain n-3 PUFAs. The beneficial effects of ALA on chronic diseases are still in dispute, unlike those of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). METHODS: The primary objective of this investigation was to evaluate the efficiency of ALA uptake from a vegetable oil source and its subsequent conversion to n-3 long-chain PUFAs (LCPUFAs) in the tissues of growing mice, and to investigate its protective role in a prostate cancer animal model...
July 11, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28686542/polyunsaturated-fatty-acids-and-endocannabinoids-in-health-and-disease
#8
Hércules Rezende Freitas, Alinny Rosendo Isaac, Renato Malcher-Lopes, Bruno Lourenço Diaz, Isis Hara Trevenzoli, Ricardo Augusto De Melo Reis
Polyunsaturated fatty acids (PUFAs) are lipid derivatives of omega-3 (docosahexaenoic acid, DHA, and eicosapentaenoic acid, EPA) or of omega-6 (arachidonic acid, ARA) synthesized from membrane phospholipids and used as a precursor for endocannabinoids (ECs). They mediate significant effects in the fine-tune adjustment of body homeostasis. Phyto- and synthetic cannabinoids also rule the daily life of billions worldwide, as they are involved in obesity, depression and drug addiction. Consequently, there is growing interest to reveal novel active compounds in this field...
July 7, 2017: Nutritional Neuroscience
https://www.readbyqxmd.com/read/28673352/fish-oil-supplementation-and-insulin-sensitivity-a-systematic-review-and-meta-analysis
#9
Huanqing Gao, Tingting Geng, Tao Huang, Qinghua Zhao
BACKGROUND: Fish oil supplementation has been shown to be associated with a lower risk of metabolic syndrome and benefit a wide range of chronic diseases, such as cardiovascular disease, type 2 diabetes and several types of cancers. However, the evidence of fish oil supplementation on glucose metabolism and insulin sensitivity is still controversial. This meta-analysis summarized the exist evidence of the relationship between fish oil supplementation and insulin sensitivity and aimed to evaluate whether fish oil supplementation could improve insulin sensitivity...
July 3, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28672272/%C3%AF-3-polyunsaturated-fatty-acids-and-their-cytochrome-p450-derived-metabolites-suppress-colorectal-tumor-development-in-mice
#10
Weicang Wang, Jun Yang, Yoshiki Nimiya, Kin Sing Stephen Lee, Katherine Sanidad, Weipeng Qi, Elvira Sukamtoh, Yeonhwa Park, Zhenhua Liu, Guodong Zhang
Many studies have shown that dietary intake of ω-3 polyunsaturated fatty acids (PUFAs) reduces the risks of colorectal cancer; however, the underlying mechanisms are not well understood. Here we used a LC-MS/MS-based lipidomics to explore the role of eicosanoid signaling in the anti-colorectal cancer effects of ω-3 PUFAs. Our results showed that dietary feeding of ω-3 PUFAs-rich diets suppressed growth of MC38 colorectal tumor, and modulated profiles of fatty acids and eicosanoid metabolites in C57BL/6 mice...
June 21, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28666598/a-meta-analysis-of-n-3-polyunsaturated-fatty-acids-effects-on-circulating-acute-phase-protein-and-cytokines-in-gastric-cancer
#11
Michel C Mocellin, Ricardo Fernandes, Thayz R Chagas, Erasmo B S M Trindade
BACKGROUND & AIMS: Chronic inflammation is related with cancer and leads to worsening prognosis in cancer patients. n-3 polyunsaturated fatty acids (PUFAs) supplementation has been proposed as adjuvant treatment in cancer due anti-inflammatory properties. In the present meta-analysis, we pooled randomized clinical trials (RCTs) assessing the effects of n-3 PUFAs (from fish oil isolated or added in an immunonutrition formula) on inflammatory markers in gastric cancer. METHODS: A comprehensive literature search was performed in Medline, Scopus, Cochrane library, Science Direct and Web of Science, besides GOOGLE Scholar and a hand searching of reference lists, through July 2016...
May 13, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28649243/distinct-blood-and-visceral-adipose-tissue-regulatory-t-cell-and-innate-lymphocyte-profiles-characterize-obesity-and-colorectal-cancer
#12
Gloria Donninelli, Manuela Del Cornò, Marina Pierdominici, Beatrice Scazzocchio, Rosaria Varì, Barbara Varano, Ilenia Pacella, Silvia Piconese, Vincenzo Barnaba, Massimo D'Archivio, Roberta Masella, Lucia Conti, Sandra Gessani
Visceral adipose tissue (VAT) is a main site where metabolic and immunologic processes interplay to regulate, at local and systemic level, the inflammatory status and immune response. Obesity-associated inflammation and immune dysfunctions are inextricably linked to tumor but, in spite of intense efforts, the mechanisms underpinning this association remain elusive. In this report, we characterized the profile of VAT-associated and circulating innate lymphocyte and regulatory T (Treg) cell subsets underlying inflammatory conditions, such as obesity and colorectal cancer (CRC)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28640223/non-targeted-metabolomics-analysis-of-the-effects-of-tyrosine-kinase-inhibitors-sunitinib-and-erlotinib-on-heart-muscle-liver-and-serum-metabolism-in-vivo
#13
Brian C Jensen, Traci L Parry, Wei Huang, Amro Ilaiwy, James R Bain, Michael J Muehlbauer, Sara K O'Neal, Cam Patterson, Gary L Johnson, Monte S Willis
Background: More than 90 tyrosine kinases have been implicated in the pathogenesis of malignant transformation and tumor angiogenesis. Tyrosine kinase inhibitors (TKIs) have emerged as effective therapies in treating cancer by exploiting this kinase dependency. The TKI erlotinib targets the epidermal growth factor receptor (EGFR), whereas sunitinib targets primarily vascular endothelial growth factor receptor (VEGFR) and platelet-derived growth factor receptor (PDGFR).TKIs that impact the function of non-malignant cells and have on- and off-target toxicities, including cardiotoxicities...
June 22, 2017: Metabolites
https://www.readbyqxmd.com/read/28622825/mutagenicity-of-%C3%AF-3-fatty-acid-peroxidation-products-in-the-ames-test
#14
Petr Grúz, Masatomi Shimizu, Kei-Ichi Sugiyama, Masamitsu Honma
Polyunsaturated fatty acids (PUFA) represent one of the main building blocks of cellular membranes and their varying composition impacts lifespan as well as susceptibility to cancer and other degenerative diseases. Increased intake of ω-3 PUFA is taught to compensate for the abundance of ω-6 PUFA in modern human diet and prevent cardiocirculatory diseases. However, highly unsaturated PUFA of marine and seed origin easily oxidize to aldehydic products which form DNA adducts. With increased PUFA consumption it is prudent to re-evaluate ω-3 PUFA safety and the genotoxic hazards of their metabolites...
July 2017: Mutation Research
https://www.readbyqxmd.com/read/28614060/dietary-n-3-polyunsaturated-fatty-acids-fish-consumption-and-endometrial-cancer-risk-a-meta-analysis-of-epidemiological-studies
#15
Rui Hou, Shen-Shen Yao, Jia Liu, Lian-Lian Wang, Lang Wu, Luo Jiang
The relationship between intake of fish and n-3 fatty acids and endometrial cancer risk has not been consistent across epidemiological studies. We quantitatively assessed the aforementioned association through a systematic review and meta-analysis. PubMed and Embase were searched through March 2017 for eligible epidemiological studies. Fixed or random-effects models were used to pool relative risks (RRs) and 95% confidence intervals (CIs). The dose-response relationship was also evaluated. Based on the literature search, five prospective studies and 11 case-control studies were identified...
May 30, 2017: Oncotarget
https://www.readbyqxmd.com/read/28595901/purification-process-for-mufa-and-pufa-based-monoacylglycerols-from-edible-oils
#16
M J González-Fernández, R P Ramos-Bueno, I Rodríguez-García, J L Guil-Guerrero
Important health benefits have been attributed to monoacylglycerols (MAGs) due to their various physiological functions, owing to which they become candidates for use as functional foods in order to prevent the onset of certain diseases such as colon cancer. In this work, six edible oils, namely: olive, linseed, sunflower, evening primrose, DHASCO(®) and ARASCO(®) have been processed to obtain different MUFA- and PUFA- based MAGs. First, the oils were hydrolyzed by means of an enzymatic process using porcine pancreatic lipase and then the reaction products were fractionated by using a liquid chromatography column containing silica gel as stationary phase in order to purify the MAGs-enriched fraction...
June 5, 2017: Biochimie
https://www.readbyqxmd.com/read/28577869/polyunsaturated-fatty-acids-differentially-modulate-cell-proliferation-and-endocannabinoid-system-in-two-human-cancer-lines
#17
Repossi Gastón, Pasqualini María Eugenia, Undurti N Das, Aldo R Eynard
BACKGROUND AND AIMS: Evidence suggests that quantity and quality of dietary polyunsaturated fatty acids (PUFAs) play a role in the development of cancer. However, the mechanisms involved in this interaction(s) are not clear. Endocannabinoids are lipid metabolites known to have growth modulatory actions. We studied the effect of supplementation with PUFAs ω-6 and ω-3 (essential fatty acids, EFAs), saturated and monounsaturated fatty acids (non-EFAs) on the growth of tumor cells and modifications in their endocannabinoid content...
January 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/28527578/tr2-and-tr4-orphan-nuclear-receptors-an-overview
#18
Shin-Jen Lin, Dong-Rong Yang, Guosheng Yang, Chang-Yi Lin, Hong-Chiang Chang, Gonghui Li, Chawnshang Chang
Testicular nuclear receptors 2 and 4 (TR2, TR4), also known as NR2C1 and NR2C2, belong to the nuclear receptor superfamily and were first cloned in 1989 and 1994, respectively. Although classified as orphan receptors, several natural molecules, their metabolites, and synthetic compounds including polyunsaturated fatty acids (PUFAs), PUFA metabolites 13-hydroxyoctadecadienoic acid, 15-hydroxyeicosatetraenoic acid, and the antidiabetic drug thiazolidinediones can transactivate TR4. Importantly, many of these ligands/activators can also transactivate peroxisome proliferator-activated receptor gamma (PPARγ), also known as NR1C3 nuclear receptor...
2017: Current Topics in Developmental Biology
https://www.readbyqxmd.com/read/28521812/radiotherapy-improves-serum-fatty-acids-and-lipid-profile-in-breast-cancer
#19
Sana Shaikh, Naseem Aslam Channa, Farha Naz Talpur, Muhammad Younis, Naila Tabassum
BACKGROUND: Breast cancer is a disease with diverse clinical symptoms, molecular profiles, and its nature to response its therapeutic treatments. Radiotherapy (RT), along with surgery and chemotherapy is a part of treatment in breast cancer. The aim of present study was to investigate pre and post treatment effects of radiotherapy in serum fatty acids and its lipids profile in patients with breast cancer. METHODS: In this comparative as well as follow up study, Serum fatty acids were performed by gas chromatography to investigate fatty acids and Microlab for analysis of lipid profile...
May 18, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28521474/an-%C3%AE-3-fatty-acid-desaturase-expressing-gene-attenuates-prostate-cancer-proliferation-by-cell-cycle-regulation
#20
Jinshun Pan, Sujin Zhou, Rong Xiang, Zhenggang Zhao, Shanshan Liu, Ning Ding, Sijia Gong, Yan Lin, Xiaoxi Li, Xiaoming Bai, Fanghong Li, Allan Z Zhao
Previous studies have reported that Ω-6 and Ω-3 fatty acids have opposing effects on cancer development. Consuming high levels of long-chain Ω-3 polyunsaturated fatty acids (PUFAs) has been shown to reduce prostate cancer risk and increase chemotherapy sensitivity. The sdd17 gene encodes an Ω-3 fatty acid desaturase, which converts arachidonic acid into eicosapentaenoic acid (EPA). However, little is known regarding the function of the sdd17 gene in tumor cells in vitro. In the present study, prostate cancer cells were infected with the msdd17 gene, which allowed the endogenous production of Ω-3 PUFAs...
May 2017: Oncology Letters
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