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https://www.readbyqxmd.com/read/28646265/omega-3-and-omega-6-fatty-acids-act-as-inhibitors-of-the-matrix-metalloproteinase-2-and-matrix-metalloproteinase-9-activity
#1
Eleonora Nicolai, Federica Sinibaldi, Gianpaolo Sannino, Giuseppina Laganà, Francesco Basoli, Silvia Licoccia, Paola Cozza, Roberto Santucci, Maria Cristina Piro
Polyunsaturated fatty acids have been reported to play a protective role in a wide range of diseases characterized by an increased metalloproteinases (MMPs) activity. The recent finding that omega-3 and omega-6 fatty acids exert an anti-inflammatory effect in periodontal diseases has stimulated the present study, designed to determine whether such properties derive from a direct inhibitory action of these compounds on the activity of MMPs. To this issue, we investigated the effect exerted by omega-3 and omega-6 fatty acids on the activity of MMP-2 and MMP-9, two enzymes that actively participate to the destruction of the organic matrix of dentin following demineralization operated by bacteria acids...
June 23, 2017: Protein Journal
https://www.readbyqxmd.com/read/28646239/intake-of-omega-3-fatty-acids-contributes-to-bone-mineral-density-at-the-hip-in-a-younger-japanese-female-population
#2
T Kuroda, H Ohta, Y Onoe, N Tsugawa, M Shiraki
This study investigated the relationships between intakes of polyunsaturated fatty acids, omega-3 fatty acids, and omega-6 fatty acids and bone mineral density in Japanese women aged 19 to 25 years. Intakes of omega-3 fatty acids (n-3) were positively associated with peak bone mass at the hip. INTRODUCTION: Lifestyle factors such as physical activity and nutrition intake are known to optimize the peak bone mass (PBM). Recently, intake of polyunsaturated fatty acids (PUFAs) has been reported to contribute to bone metabolism...
June 23, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28620418/the-changes-in-rats-with-sciatic-nerve-crush-injury-supplemented-with-evening-primrose-oil-behavioural-morphologic-and-morphometric-analysis
#3
Danial Ramli, Izzuddin Aziz, Masro Mohamad, Dauda Abdulahi, Junedah Sanusi
Nerve crush injuries are commonly used models for axonotmesis to examine peripheral nerve regeneration. As evening primrose oil (EPO) is rich in omega-6 essential fatty acid component and gamma-linolenic acid, studies have shown the potential role of EPO in myelination. Seventy-two healthy adult Sprague-Dawley rats were classified into three groups: normal group, control group, and experimental group. The result indicates that there was significant difference in toe-spreading reflex between the normal and the control groups (1...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28599651/microtiter-plate-cultivation-of-oleaginous-fungi-and-monitoring-of-lipogenesis-by-high-throughput-ftir-spectroscopy
#4
Gergely Kosa, Achim Kohler, Valeria Tafintseva, Boris Zimmermann, Kristin Forfang, Nils Kristian Afseth, Dimitrios Tzimorotas, Kiira S Vuoristo, Svein Jarle Horn, Jerome Mounier, Volha Shapaval
BACKGROUND: Oleaginous fungi can accumulate lipids by utilizing a wide range of waste substrates. They are an important source for the industrial production of omega-6 polyunsaturated fatty acids (gamma-linolenic and arachidonic acid) and have been suggested as an alternative route for biodiesel production. Initial research steps for various applications include the screening of fungi in order to find efficient fungal producers with desired fatty acid composition. Traditional cultivation methods (shake flask) and lipid analysis (extraction-gas chromatography) are not applicable for large-scale screening due to their low throughput and time-consuming analysis...
June 9, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28595290/dietary-fat-intake-and-fecundability-in-two-preconception-cohort-studies
#5
Lauren A Wise, Amelia K Wesselink, Katherine L Tucker, Shilpa Saklani, Ellen M Mikkelsen, Heidi Cueto, Anders H Riis, Ellen Trolle, Craig J McKinnon, Kristen A Hahn, Kenneth J Rothman, Henrik Toft Sørensen, Elizabeth E Hatch
The association between dietary fat and fertility is not well-studied. We evaluated intakes of total fat, saturated fatty acids, monounsaturated fatty acids, polyunsaturated fatty acids, trans fatty acids (TFA), and omega-3 and-6 fatty acids in relation to fecundability in Danish and North American preconception cohort studies. Female pregnancy planners completed a validated food frequency questionnaire at baseline. Pregnancy status was updated bimonthly for 12 months or until pregnancy. Fecundability ratios (FR) and 95% confidence intervals (CI) were estimated using multivariable proportional probabilities regression...
June 8, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28593444/efficacy-of-dietary-supplementation-of-fatty-acid-compound-on-performance-and-production-in-finishing-pigs
#6
Santi Devi Upadhaya, Hyeok Min Yun, Shuaiqi Huang, In Ho Kim
The present study was conducted to evaluate the efficacy of dietary supplementation of 0.5 and 1% of fatty acid (FA) compound containing conjugated linoleic acid as active component on growth performance, apparent nutrient digestibility, serum lipid profile, meat quality, and fatty acid profiles in muscle and adipose tissue in finishing pigs. A total of 90 finishing pigs ([Yorkshire × Landrace] × Duroc) were used in 5-week trial. The growth performance and nutrient digestibility were unaffected with FA supplementation...
June 8, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28578064/effect-of-liquid-smoking-on-lipid-hydrolysis-and-oxidation-reactions-during-in-vitro-gastrointestinal-digestion-of-european-sea-bass
#7
Bárbara Nieva-Echevarría, Encarnación Goicoechea, María D Guillén
The effect of smoking using liquid smoke flavourings on the hydrolysis and oxidation of European sea bass lipids during in vitro digestion was investigated. The techniques used were (1)H NMR and SPME-GC/MS. The former proved that liquid smoking does not influence the extent of lipolysis, but prevents those lipid oxidation reactions that occur during in vitro digestion of unsmoked samples, giving rise to cis,trans-conjugated dienes associated with hydroperoxy/hydroxy groups. SPME-GC/MS corroborated the results obtained by (1)H NMR in relation to the antioxidant effect of smoking under gastrointestinal conditions...
July 2017: Food Research International
https://www.readbyqxmd.com/read/28570125/high-omega-3-polyunsaturated-fatty-acids-in-fat-1-mice-reduce-inflammatory-pain
#8
Enji Zhang, Jwa-Jin Kim, Nara Shin, Yuhua Yin, Yongshan Nan, Yinshi Xu, Jinpyo Hong, Tzung Min Hsu, Woosuk Chung, Youngkwon Ko, Wonhyung Lee, Kyu Lim, Dong Woon Kim, Sun Yeul Lee
Omega-3 and omega-6 polyunsaturated fatty acids (PUFAs), such as α-linolenic and linoleic acids, are essential fatty acids in mammals, because they cannot be synthesized de novo. However, fat-1 transgenic mice can synthesize omega-3 PUFAs from omega-6 PUFAs without dietary supplementation of omega-3, leading to abundant omega-3 PUFA accumulation in various tissues. In this study, we used fat-1 transgenic mice to investigate the role of omega-3 PUFAs in response to inflammatory pain. A high omega-3 PUFA tissue content attenuated formalin-induced pain sensitivity, microglial activation, inducible nitric oxide synthase expression, and the phosphorylation of NR2B, a subunit of the N-methyl-d-aspartate (NMDA) receptor...
June 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28558948/ultrasonic-assisted-incorporation-of-nano-encapsulated-omega-3-fatty-acids-to-enhance-the-fatty-acid-profile-of-pork-meat
#9
K Shikha Ojha, Camila A Perussello, Carlos Álvarez García, Joseph P Kerry, Daniel Pando, Brijesh K Tiwari
In this study, ultrasound was employed to enhance the diffusion of microencapsulated fatty acids into pork meat. Nanovesicles of fish oil composed of 42% EPA (eicosapentanoic acid) and 16% DHA (docosahexanoic acid) were prepared using two different commercial Pronanosome preparations (Lipo-N and Lipo-CAT; which yield cationic and non-cationic nanovesicles, respectively). The thin film hydration (TFH) methodology was employed for encapsulation. Pork meat (Musculus semitendinosus) was submerged in the nanovesicles suspension and subjected to ultrasound (US) treatment at 25kHz for either 30 or 60min...
May 5, 2017: Meat Science
https://www.readbyqxmd.com/read/28557975/the-differential-expression-of-omega-3-and-omega-6-fatty-acid-metabolising-enzymes-in-colorectal-cancer-and-its-prognostic-significance
#10
Abdo Alnabulsi, Rebecca Swan, Beatriz Cash, Ayham Alnabulsi, Graeme I Murray
BACKGROUND: Colorectal cancer is a common malignancy and one of the leading causes of cancer-related deaths. The metabolism of omega fatty acids has been implicated in tumour growth and metastasis. METHODS: This study has characterised the expression of omega fatty acid metabolising enzymes CYP4A11, CYP4F11, CYP4V2 and CYP4Z1 using monoclonal antibodies we have developed. Immunohistochemistry was performed on a tissue microarray containing 650 primary colorectal cancers, 285 lymph node metastasis and 50 normal colonic mucosa...
June 6, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28552045/erythrocyte-polyunsaturated-fatty-acid-composition-is-associated-with-depression-and-fads-genotype-in-caucasians
#11
Lachlan Cribb, Jenifer Murphy, Amy Froud, Georgina Oliver, Chad A Bousman, Chee H Ng, Jerome Sarris
BACKGROUND: Polyunsaturated fatty acids (PUFAs) play an important role in the pathophysiology of major depressive disorder (MDD), related, in part, to their role in inflammatory systems. The enzymes δ-5 and δ-6 desaturase are the rate-limiting steps in the metabolism of PUFAs and are encoded in the genes fatty acid desaturase (FADS) 1 and 2, respectively. Single nucleotide polymorphisms (SNPs) and haplotypes within the FADS gene cluster have been shown to influence PUFA composition...
May 29, 2017: Nutritional Neuroscience
https://www.readbyqxmd.com/read/28550831/-relevance-of-omega-3-and-omega-6-omega-3-ratio-in-preventing-cognitive-impairment
#12
Belina Nunes, Cristina Pinho, Cláudia Sousa, Alan Rocha Melo, Narcisa Bandarra, Maria Carolina Silva
INTRODUCTION: The epidemiological and social relevance of dementia and mild cognitive impairment increases with life expectancy and prevalence of metabolic disorders. The recognition of an important role for dietary nutrients on cognitive functioning opens new preventive strategies. This work analyses the association between erythrocyte omega-3 index and omega-6 / omega-3 ratio and cognitive performance/ mild cognitive impairment. MATERIAL AND METHODS: We selected a random sample of individuals registered at a health centre aged ≥ 55 years...
March 31, 2017: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28542024/omega-6-omega-3-pufa-ratio-pain-functioning-and-distress-in-adults-with-knee-pain
#13
Kimberly T Sibille, Christopher King, Timothy J Garrett, Toni L Glover, Hang Zhang, Huaihou Chen, Divya Reddy, Burel R Goodin, Adriana Sotolongo, Megan E Petrov, Yenisel Cruz-Almeida, Matthew Herbert, Emily J Bartley, Jeffrey C Edberg, Roland Staud, David T Redden, Laurence A Bradley, Roger B Fillingim
OBJECTIVES: Osteoarthritis (OA) is associated with inflammation, chronic pain, functional limitations, and psychosocial distress. High Omega-3 (n-3) polyunsaturated fatty acids (PUFAs) are associated with lower levels of inflammatory mediators, anti-nociception, and adaptive cognitive/emotional functioning. High Omega-6 (n-6) PUFAs are associated with inflammation, nociception, and psychological distress. While findings related to n-3 supplementation in knee OA are mixed, consideration of the n-6:n-3 ratio and additional outcome measures may provide improved understanding of the potential relevance of these fatty acids in OA...
May 24, 2017: Clinical Journal of Pain
https://www.readbyqxmd.com/read/28536068/polyunsaturated-fatty-acids-and-inflammatory-markers-in-major-depressive-episodes-during-pregnancy
#14
Jane Pei-Chen Chang, Chih-Ying Lin, Pan-Yen Lin, Yin-Hua Shih, Tsan-Hung Chiu, Ming Ho, Hui-Ting Yang, Shih-Yih Huang, Piotr Gałecki, Kuan-Pin Su
INTRODUCTION: Prenatal depression (PND) is a common psychiatric disorder in pregnant women and leads to psychosocial dysfunction, high suicidal rate, and adverse childcare. Patients with PND have omega-3 polyunsaturated fatty acid (omega-3 or n-3 PUFAs) deficits, which might link to chronic low-grade inflammatory process and the pathophysiological mechanisms of depression. In this case-control study, we examined the levels of PUFAs and inflammatory cytokines in PND. METHOD: Blood samples were obtained and analyzed from 16 healthy controls and 17 depressed cases (PND group) diagnosed with Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV)...
May 20, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28532687/the-role-of-systemic-and-topical-fatty-acids-for-dry-eye-treatment
#15
REVIEW
Stefano Barabino, Jutta Horwath-Winter, Elisabeth M Messmer, Maurizio Rolando, Pasquale Aragona, Shigeru Kinoshita
Dry eye is a prevalent condition and one of the main reasons for patients to seek ophthalmic medical care. A low systemic level of omega fatty acids is a risk factor for dry eye disease (DED). There are two groups of essential fatty acids (EFAs): the omega-6 (n-6) family and the omega-3 (n-3) family. Humans evolved on a diet in which the n-6:n-3 ratio was approximately 1:1, however the current Western diet tends to be deficient in n-3 EFAs and this ratio is typically much higher (approaching 17:1). The metabolism of EFAs generates four new families of local acting mediators: lipoxins, resolvins, protectins, and maresins...
May 19, 2017: Progress in Retinal and Eye Research
https://www.readbyqxmd.com/read/28530530/is-fish-oil-a-potential-treatment-for-diabetic-peripheral-neuropathy
#16
Mark Anthony Yorek
BACKGROUND: Peripheral neuropathy affects about 50% of the diabetic population. The manifestations range from pain, numbness, paresthesia and ulceration in the extremities and it is the major cause of non-traumatic amputations. Currently there is no effective treatment for peripheral neuropathy. With the prevalence of obesity and type 2 diabetes and associated complications reaching epidemic levels there is a critical need for finding a treatment to preserve nerve function. INTRODUCTION: This article will review the potential for fish oil as a treatment for diabetic peripheral neuropathy...
May 22, 2017: Current Diabetes Reviews
https://www.readbyqxmd.com/read/28526097/abundance-of-active-ingredients-in-sea-buckthorn-oil
#17
REVIEW
Aleksandra Zielińska, Izabela Nowak
Vegetable oils are obtained by mechanical extraction or cold pressing of various parts of plants, most often: seeds, fruits, and drupels. Chemically, these oils are compounds of the ester-linked glycerol and higher fatty acids with long aliphatic chain hydrocarbons (min. C14:0). Vegetable oils have a variety of properties, depending on their percentage of saturation. This article describes sea-buckthorn oil, which is extracted from the well characterized fruit and seeds of sea buckthorn. The plant has a large number of active ingredients the properties of which are successfully used in the cosmetic industry and in medicine...
May 19, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28521737/validation-of-the-german-version-of-the-mediterranean-diet-adherence-screener-medas-questionnaire
#18
Katrin Hebestreit, Maryam Yahiaoui-Doktor, Christoph Engel, Walter Vetter, Michael Siniatchkin, Nicole Erickson, Martin Halle, Marion Kiechle, Stephan C Bischoff
BACKGROUND: Health benefits of the Mediterranean Diet (MD) have been shown in different at-risk populations. A German translation of the Mediterranean Diet Adherence Screener (MEDAS) from the PREvención con DIeta MEDiterránea (PREDIMED) consortium was used in the LIBRE study, investigating effects of lifestyle-intervention on women with BRCA1/2 mutations. The purpose of the present study is to validate the MEDAS German version. METHODS: LIBRE is a multicentre (three university hospitals during this pilot phase), unblinded, randomized, controlled clinical trial...
May 18, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28504119/the-ratio-of-1-3-linoleic-acid-to-alpha-linolenic-acid-is-optimal-for-oligodendrogenesis-of-embryonic-neural-stem-cells
#19
Hossein Hejr, Majid Ghareghani, Kazem Zibara, Maryam Ghafari, Farzad Sadri, Zinab Salehpour, Azadeh Hamedi, Koresh Negintaji, Hassan Azari, Amir Ghanbari
During neural development, embryonic neural stem cells (eNSCs) differentiate toward glial, oligodendrocytic, and neuronal cells. Dysregulation of polyunsaturated fatty acids (PUFAs) induce a wide range of neurological and developmental disorders. In this study, we investigated the effect of various concentrations and ratios of linoleic acid (LA) and alpha linolenic acid (ALA), which belong respectively to omega-6 and omega-3 PUFAs, on the proliferation and differentiation of eNSCs.Results showed that low (25 and 50μM) or high (100 and 200μM) concentrations of ALA, but not LA, and the ratio of 1:3 of LA/ALA significantly increased neurospheres size, frequency and cell numbers, in comparison to controls...
May 11, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28493486/pansteatitis-in-polluted-olifants-river-impoundments-nutritional-perspectives-on-fish-in-a-eutrophic-lake-lake-loskop-south-africa
#20
K D A Huchzermeyer, S Woodborne, G Osthoff, A Hugo, A C Hoffman, H Kaiser, J C A Steyl, J G Myburgh
This study compares the aetiology of pansteatitis in Lake Loskop, relative to two other impoundments along the Olifants River. Macroscopic and microscopic pathology, age determination and analysis of stomach content, fatty acids and stable isotopes explain the high prevalence of pansteatitis in Oreochromis mossambicus (Peters) and several other species in Lake Loskop. All the dietary indicator comparisons between pansteatitis-affected and healthy fish fail to support a systemic cause. Pansteatitis in Lake Loskop was linked to size and weight of O...
May 11, 2017: Journal of Fish Diseases
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