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1.
Nutrients ; 14(22)2022 Nov 10.
Article in English | MEDLINE | ID: mdl-36432429

ABSTRACT

Lipodystrophy syndromes are rare diseases that could be of genetic or acquired origin. The main complication of lipodystrophy is the dysfunction of adipose tissue, which leads to an ectopic accumulation of triglycerides in tissues such as the liver, pancreas and skeletal muscle. This abnormal fat distribution is associated with hypertriglyceridemia, insulin resistance, liver steatosis, cardiomyopathies and chronic inflammation. Although the origin of acquired lipodystrophies remains unclear, patients show alterations in genes related to genetic lipodystrophy, suggesting that this disease could be improved or aggravated by orchestrating gene activity, for example by diet. Nowadays, the main reason for adipose tissue dysfunction is an imbalance in metabolism, caused in other pathologies associated with adipose tissue dysfunction by high-fat diets. However, not all dietary fats have the same health implications. Therefore, this article aims to summarize the main genes involved in the pathophysiology of lipodystrophy, identify connections between them and provide a systematic review of studies published between January 2017 and January 2022 of the dietary fats that can modulate the development of lipodystrophy through transcriptional regulation or the regulation of protein expression in adipocytes.


Subject(s)
Dietary Fats , Lipodystrophy , PPAR gamma , Humans , Adipose Tissue/metabolism , Dietary Fats/adverse effects , Dietary Fats/metabolism , Fatty Acids/metabolism , Lipodystrophy/genetics , Lipodystrophy/metabolism , PPAR gamma/genetics , PPAR gamma/metabolism
2.
Mol Nutr Food Res ; 66(18): e2200082, 2022 09.
Article in English | MEDLINE | ID: mdl-35848367

ABSTRACT

SCOPE: To compare the effects of three high-fat diets (HFDs) based on coconut, sunflower, or extra virgin olive oils (EVOOs) on adipose tissue, metabolism, and inflammation. METHODS AND RESULTS: Mice are fed for 16 weeks on their respective HFD. HFD based on coconut oil produces significantly lower body weight than EVOO- or sunflower oil-based HFDs. Furthermore, the coconut oil HFD leads to metabolic disturbances such as reduction of circulating leptin and adiponectin concentrations, hypertriglyceridemia, hepatomegaly, and liver triglyceride accumulation. Likewise, this diet produces an increase in serum pro-inflammatory cytokines (interleukin 6 [IL-6] and tumor necrosis factor-α [TNF-α]). In white (WAT) and brown (BAT) adipose tissue, the HFD based on coconut oil does not cause significant changes in the expression of studied proteins related to thermogenesis (uncoupling protein 1 [UCP-1]), mitochondrial biogenesis, and browning (peroxisome proliferator-activated receptor-γ coactivator 1α [PGC-1α] and nuclear factor E2-related factor 2 [Nrf2]). However, the HFD based on EVOO induces upregulation of UCP-1, PGC-1α, and Nrf2 expression in BAT, increases the expression of UCP-1 and PGC-1α in inguinal WAT, and enhances the expression of PGC-1α in epididymal WAT. CONCLUSIONS: An HFD based on coconut oil could reduce circulating leptin and adiponectin concentrations, increase the liver fat content, raise serum triglycerides, and promote inflammation by increasing circulating pro-inflammatory cytokines, while an EVOO-based HFD could increase thermogenic activity.


Subject(s)
Adipose Tissue , Coconut Oil , Diet, High-Fat , Inflammation , Adiponectin/metabolism , Adipose Tissue/immunology , Adipose Tissue/metabolism , Animals , Coconut Oil/adverse effects , Diet, High-Fat/adverse effects , Female , Inflammation/immunology , Inflammation/metabolism , Interleukin-6/blood , Interleukin-6/metabolism , Leptin/blood , Leptin/metabolism , Mice , NF-E2-Related Factor 2/metabolism , Olive Oil , Peroxisome Proliferator-Activated Receptors/metabolism , Sunflower Oil/adverse effects , Triglycerides/analysis , Triglycerides/metabolism , Tumor Necrosis Factor-alpha/metabolism , Uncoupling Protein 1/genetics , Uncoupling Protein 1/metabolism
3.
Nutrients ; 14(2)2022 Jan 07.
Article in English | MEDLINE | ID: mdl-35057436

ABSTRACT

Several studies relate Mediterranean diet and virgin olive oil (VOO) intake with lower risk of several chronic diseases, including breast cancer. Many of them described antitumor properties of isolated minor compounds present in VOO, but beneficial properties of VOO arise from the effects of all its compounds acting together. The aim of the present study was to test the antitumor effects of two minor compounds from VOO (hydroxytyrosol (HT) and squalene (SQ)) on highly metastatic human breast tumor cells (MDA-MB-231) when acting in combination. Both isolated compounds were previously analyzed without showing any antitumoral effect on highly invasive MDA-MB-231 breast cancer cells, but the present results show that HT at 100 µM, combined with different concentrations of SQ, could exert antitumor effects. When they are combined, HT and SQ are able to inhibit cell proliferation, promoting apoptosis and DNA damage in metastatic breast cancer cells. Therefore, our results suggest that the health-promoting properties of VOO may be due, at least in part, to the combined action of these two minor compounds.


Subject(s)
Apoptosis/radiation effects , Breast Neoplasms/drug therapy , Cell Proliferation/radiation effects , Olive Oil/chemistry , Phenylethyl Alcohol/analogs & derivatives , Squalene/pharmacology , Antineoplastic Agents, Phytogenic/pharmacology , Apoptosis/drug effects , Breast Neoplasms/pathology , Cell Cycle/drug effects , Cell Line, Tumor , Cell Proliferation/drug effects , DNA Damage , Diet, Mediterranean , Drug Synergism , Female , Humans , Phenylethyl Alcohol/pharmacology , Reactive Oxygen Species/analysis
4.
Atherosclerosis ; 314: 48-57, 2020 12.
Article in English | MEDLINE | ID: mdl-33160246

ABSTRACT

BACKGROUND AND AIMS: The aim of this study was to ascertain the association between the consumption of different categories of edible olive oils (virgin olive oils and olive oil) and olive pomace oil and ankle-brachial pressure index (ABI) in participants in the PREDIMED-Plus study, a trial of lifestyle modification for weight and cardiovascular event reduction in individuals with overweight/obesity harboring the metabolic syndrome. METHODS: We performed a cross-sectional analysis of the PREDIMED-Plus trial. Consumption of any category of olive oil and olive pomace oil was assessed through a validated food-frequency questionnaire. Multivariable linear regression models were fitted to assess associations between olive oil consumption and ABI. Additionally, ABI ≤1 was considered as the outcome in logistic models with different categories of olive oil and olive pomace oil as exposure. RESULTS: Among 4330 participants, the highest quintile of total olive oil consumption (sum of all categories of olive oil and olive pomace oil) was associated with higher mean values of ABI (beta coefficient: 0.014, 95% confidence interval [CI]: 0.002, 0.027) (p for trend = 0.010). Logistic models comparing the consumption of different categories of olive oils, olive pomace oil and ABI ≤1 values revealed an inverse association between virgin olive oils consumption and the likelihood of a low ABI (odds ratio [OR] 0.73, 95% CI [0.56, 0.97]), while consumption of olive pomace oil was positively associated with a low ABI (OR 1.22 95% CI [1.00, 1.48]). CONCLUSIONS: In a Mediterranean population at high cardiovascular risk, total olive oil consumption was associated with a higher mean ABI. These results suggest that olive oil consumption may be beneficial for peripheral artery disease prevention, but longitudinal studies are needed.


Subject(s)
Cardiovascular Diseases , Ankle , Cardiovascular Diseases/diagnosis , Cardiovascular Diseases/epidemiology , Cardiovascular Diseases/prevention & control , Cross-Sectional Studies , Heart Disease Risk Factors , Humans , Olive Oil , Plant Oils , Risk Factors
5.
Nutrition ; 79-80: 110884, 2020.
Article in English | MEDLINE | ID: mdl-32736167

ABSTRACT

OBJECTIVES: Provegetarian diets, also known as predominantly plant-based (but not vegetarian or vegan) or plant-forward diets, have been associated with health benefits. However, a distinction is needed between high- and low-quality provegetarian dietary patterns (PVGs). We sought to examine potential associations between PVG indices and breast cancer (BC) incidence. METHODS: We assessed 10 812 women in the Seguimiento Universidad de Navarra cohort. We calculated an overall PVG pattern from a validated semi-quantitative food-frequency questionnaire as proposed by Martínez-Gonzalez et al, assigning positive scores (based on quintiles) to plant foods and reversing the quintile scores for animal foods. Participants were categorized according to tertiles of the overall score. We also calculated a healthful PVG (hPVG) and unhealthful PVG (uPVG) as proposed by Satija et al. RESULTS: After a median of 11.5 years of follow-up, 101 incident BC cases, confirmed by medical records, were observed. A significant inverse association with BC (comparing tertile 2 vs. tertile 1, HR= 0.55; 95% confidence interval, 0.32-0.95) was identified for a modest overall PVG, but not for hPVG and uPVG separately. Nevertheless, the highest tertile was not associated with BC. CONCLUSIONS: In this large prospective cohort study, a moderate adherence to a PVG might decrease the risk of BC. Further studies should replicate and expand these results to other racial, ethnic, and socioeconomic groups.


Subject(s)
Breast Neoplasms , Diet, Mediterranean , Animals , Breast Neoplasms/epidemiology , Breast Neoplasms/etiology , Cohort Studies , Female , Follow-Up Studies , Humans , Incidence , Prospective Studies , Surveys and Questionnaires , Vegetarians
6.
Nutrients ; 12(6)2020 Jun 07.
Article in English | MEDLINE | ID: mdl-32517306

ABSTRACT

The present study aims to examine the effects of three different high-fat diet (HFD) on mice gut microbiota in order to analyse whether they create the microenvironmental conditions that either promote or prevent colorectal cancer (CRC). We evaluated colonic mucosa-associated microbiota in CD1 mice fed with HFD, based on 60% kcal from fat-containing coconut, sunflower or extra-virgin olive oil as the only source of fat. The main findings were as follows: (a) All HFD produced a decrease in the richness and diversity of the intestinal microbiota that was independent of mouse weight, (b) HFD switched Lactobacillus to Lactococcus. In general, the results showed that both sunflower- and coconut-HFD generated a pro-inflammatory intestinal microenvironment. In brief, coconut-HFD decreased Akkermansia and increased Staphylococcus, Prevotella and Bacteroides spp. abundance. Sunflower-HFD reduced Akkermansia and Bifidobacterium, while enhancing Sphingomonas and Neisseria spp. abundance. In contrast, EVOO-HFD produced an anti-inflammatory microenvironment characterised by a decreased Enterococcus, Staphylococcus, Neisseria and Pseudomonas spp. abundance. At the same time, it increased the Firmicutes/Bacteroidetes ratio and maintained the Akkermansia population. To conclude, EVOO-HFD produced changes in the gut microbiota that are associated with the prevention of CRC, while coconut and sunflower-HFD caused changes associated with an increased risk of CRC.


Subject(s)
Colorectal Neoplasms/etiology , Colorectal Neoplasms/prevention & control , Diet, High-Fat , Dysbiosis/etiology , Gastrointestinal Microbiome , Olive Oil , Akkermansia , Animals , Bacteroidetes , Coconut Oil/adverse effects , Colorectal Neoplasms/microbiology , Diet, High-Fat/adverse effects , Enterococcus , Firmicutes , Intestinal Mucosa/microbiology , Mice , Risk , Staphylococcus , Sunflower Oil/adverse effects , Tumor Microenvironment
7.
J Acad Nutr Diet ; 120(6): 1002-1015.e5, 2020 06.
Article in English | MEDLINE | ID: mdl-31982373

ABSTRACT

BACKGROUND: Biological and epidemiological evidence supports an inverse association of phenolic acids with obesity-related chronic diseases. However, no previous study has prospectively evaluated the relationship between subclasses and individual compounds of phenolic acids and the risk of postmenopausal breast cancer, one of the most important and prevalent obesity-related cancer sites. OBJECTIVE: This study examined associations between subclasses of phenolic acids, including hydroxycinnamic and hydroxybenzoic acids intake, and risk of breast cancer. DESIGN: The Seguimiento Universidad de Navarra (SUN) Project is a dynamic, permanently open prospective cohort which started in 1999. PARTICIPANTS/SETTING: Participants were 10,812 middle-aged women. All of them were university graduates. MAIN OUTCOME MEASURES: Usual diet was assessed at baseline and after 10 years of follow-up with a 136-item food frequency questionnaire. Phenolic acid intake was calculated by matching food consumption with the Phenol-Explorer database on phenolic acids content of each reported food item. STATISTICAL ANALYSIS PERFORMED: Participants were classified according to tertiles of subclasses or individual compounds of phenolic acids. Cox regression models were fitted to estimate multivariable-adjusted hazard ratios and 95% CIs for breast cancer incidence. RESULTS: Over an average of 11.8 years of follow-up, 101 incident cases of breast cancer were confirmed. After multivariable adjustment, an inverse association between hydroxycinnamic acids intake and breast cancer was observed (hazard ratio third tertile vs first tertile 0.37, 95% CI 0.16 to 0.85; P for trend=0.029) among postmenopausal women. Specifically, chlorogenic acids (3-, 4-, and 5- caffeoylquinic acids) showed the strongest inverse association (hazard ratio third tertile vs first tertile 0.33, 95% CI 0.14 to 0.78; P for trend=0.012). CONCLUSIONS: A higher intake of hydroxycinnamic acids, especially from chlorogenic acids-present in coffee, fruits, and vegetables-was associated with a lower incidence of breast cancer among postmenopausal women. Future observational studies are needed to corroborate these results.


Subject(s)
Breast Neoplasms/epidemiology , Coumaric Acids/administration & dosage , Diet, Mediterranean , Hydroxybenzoates/administration & dosage , Adult , Chlorogenic Acid/administration & dosage , Coffee , Cohort Studies , Female , Fruit , Humans , Middle Aged , Postmenopause , Prospective Studies , Quinic Acid/administration & dosage , Quinic Acid/analogs & derivatives , Risk Factors , Spain , Vegetables
8.
Eur J Nutr ; 59(8): 3461-3471, 2020 Dec.
Article in English | MEDLINE | ID: mdl-31955220

ABSTRACT

INTRODUCTION: Breast cancer prevalence is growing worldwide. Many factors, such as diet and lifestyle could be determinants of the incidence of breast cancer. Coffee has been extensively studied in relation to several chronic diseases because of its multiple effects in health maintenance and its elevated consumption. We studied the relationship between coffee intake and breast cancer risk in the SUN (Seguimiento Universidad de Navarra) prospective cohort. MATERIALS AND METHODS: We evaluated 10,812 middle-aged, Spanish female university graduates from the SUN Project, initially free of breast cancer. Coffee consumption was assessed with a 136-item validated food-frequency questionnaire (FFQ). Incident breast cancer cases were confirmed by a trained oncologist using medical records and by consultation of the National Death Index. We fitted Cox regression models to assess the relationship between baseline categories of coffee consumption and the incidence of breast cancer during follow-up. We stratified the analysis by menopausal status. RESULTS: During 115,802 person-years of follow-up, 101 new cases of breast cancer were confirmed. Among postmenopausal women, more than 1 cup of coffee per day was associated with a lower incidence of breast cancer (HR 0.44; 95% confidence interval: 0.21, 0.92) in the fully adjusted model, compared to women who consumed one cup of coffee or less per day. We observed no significant differences in regard to premenopausal women. CONCLUSION: Even though the number of cases was low, slight indications of an inverse association between coffee consumption and breast cancer risk among postmenopausal women were observed. Further longitudinal studies are warranted to confirm this finding.


Subject(s)
Breast Neoplasms , Coffee , Breast Neoplasms/epidemiology , Cohort Studies , Female , Follow-Up Studies , Humans , Incidence , Middle Aged , Prospective Studies , Risk Factors , Surveys and Questionnaires
9.
Nutrients ; 11(9)2019 Sep 01.
Article in English | MEDLINE | ID: mdl-31480506

ABSTRACT

The Mediterranean diet is considered as the foremost dietary regimen and its adoption is associated with the prevention of degenerative diseases and an extended longevity. The preeminent features of the Mediterranean diet have been agreed upon and the consumption of olive oil stands out as the most peculiar one. Indeed, the use of olive oil as the nearly exclusive dietary fat is what mostly characterizes the Mediterranean area. Plenty of epidemiological studies have correlated that the consumption of olive oil was associated with better overall health. Indeed, extra virgin olive oil contains (poly)phenolic compounds that are being actively investigated for their purported biological and pharma-nutritional properties. On 18 and 19 May 2018, several experts convened in Jaen (Spain) to discuss the most recent research on the benefits of olive oil and its components. We reported a summary of that meeting (reviewing several topics related to olive oil, not limited to health) and concluded that substantial evidence is accruing to support the widespread opinion that extra virgin olive oil should, indeed, be the fat of choice when it comes to human health and sustainable agronomy.


Subject(s)
Diet, Healthy/standards , Diet, Mediterranean , Dietary Fats , Nutrition Policy , Olive Oil , Congresses as Topic , Consensus , Diet, Healthy/methods , Humans , Spain
10.
Antioxidants (Basel) ; 8(5)2019 May 18.
Article in English | MEDLINE | ID: mdl-31109072

ABSTRACT

Over the past few years, interest in health research has increased, making improved health a global goal for 2030. The purpose of such research is to ensure healthy lives and promote wellbeing across individuals of all ages. It has been shown that nutrition plays a key role in the prevention of some chronic diseases such as obesity, cardiovascular disease, diabetes, and cancer. One of the aspects that characterises a healthy diet is a high intake of vegetables and fruits, as both are flavonoid-rich foods. Flavonoids are one of the main subclasses of dietary polyphenols and possess strong antioxidant activity and anti-carcinogenic properties. Moreover, some population-based studies have described a relationship between cancer risk and dietary flavonoid intake. In this context, the goal of this review was to provide an updated evaluation of the association between the risk of different types of cancers and dietary flavonoid intake. We analysed all relevant epidemiological studies from January 2008 to March 2019 using the PUBMED and Web of Science databases. In summary, this review concludes that dietary flavonoid intake is associated with a reduced risk of different types of cancer, such as gastric, breast, prostate, and colorectal cancers.

11.
Molecules ; 24(5)2019 Mar 06.
Article in English | MEDLINE | ID: mdl-30845651

ABSTRACT

Dietary guidelines universally advise adherence to plant-based diets. Plant-based foods confer considerable health benefits, partly attributable to their abundant micronutrient (e.g., polyphenol) content. Interest in polyphenols is largely focused on the contribution of their antioxidant activity to the prevention of various disorders, including cardiovascular disease and cancer. Polyphenols are classified into groups, such as stilbenes, flavonoids, phenolic acids, lignans and others. Lignans, which possess a steroid-like chemical structure and are defined as phytoestrogens, are of particular interest to researchers. Traditionally, health benefits attributed to lignans have included a lowered risk of heart disease, menopausal symptoms, osteoporosis and breast cancer. However, the intake of naturally lignan-rich foods varies with the type of diet. Consequently, based on the latest humans' findings and gathered information on lignan-rich foods collected from Phenol Explorer database this review focuses on the potential health benefits attributable to the consumption of different diets containing naturally lignan-rich foods. Current evidence highlight the bioactive properties of lignans as human health-promoting molecules. Thus, dietary intake of lignan-rich foods could be a useful way to bolster the prevention of chronic illness, such as certain types of cancers and cardiovascular disease.


Subject(s)
Biological Products/chemistry , Health Promotion/methods , Lignans/chemistry , Plants, Edible/chemistry , Antioxidants , Chronic Disease/prevention & control , Chronic Disease/therapy , Databases, Chemical , Diet , Food Analysis/methods , Humans , Phenols/chemistry , Phytoestrogens/chemistry , Recommended Dietary Allowances
12.
Gac. sanit. (Barc., Ed. impr.) ; 32(6): 584-587, nov.-dic. 2018. tab, graf
Article in Spanish | IBECS | ID: ibc-174296

ABSTRACT

La promoción de la salud puede ayudar a reducir las desigualdades y velar por la igualdad de oportunidades, proporcionando los medios que permitan a toda la población desarrollar su máximo potencial de salud. Las mujeres que viven en zonas con necesidades de transformación social (ZNTS) son un grupo especialmente vulnerable por la situación de exclusión social y privación material en que viven; los programas de promoción de la salud en este colectivo pueden contribuir a la mejora de su salud. En este trabajo se describe el programa de promoción de la salud Grupos Socioeducativos de Atención Primaria dirigidos a Mujeres (GRUSE-M), y se evalúa su implantación en diversas ZNTS de la ciudad de Sevilla, así como los beneficios y las dificultades de su desarrollo, a través de un análisis documental y de entrevistas a profesionales que lo están implementando


Health promotion can contribute towards reducing inequality and ensuring equal opportunities, providing the means to enable the entire population to develop its maximum health possibilities. Women living in areas with social transformation needs (ASTN) are an especially vulnerable group due to the situation of material deprivation and social exclusion in which they live. Health promotion programmes for this group can bring about an improvement in their health. This paper describes the health promotion programme Socio-educational Groups of Primary Care for Women (SEGPC-W), and evaluates its implementation in ASTN in the city of Seville (Spain), as well as the benefits and difficulties of its development through a documentary analysis and interviews with participating professionals


Subject(s)
Humans , Female , Health Promotion/methods , Women's Health/trends , Health Status Disparities , Health Services Accessibility/trends , Women's Health Services/organization & administration , Social Marginalization , Interviews as Topic
13.
Article in English | MEDLINE | ID: mdl-30363968

ABSTRACT

Anti-inflammatory effects of virgin olive oil (VOO) have been described recently, along with its wound healing effect. One of the main minor compounds found in VOO is squalene (SQ), which also possesses preventive effects against skin damage and anti-inflammatory properties. The inflammatory response is involved in wound healing and manages the whole process by macrophages, among others, as the main innate cells with a critical role in the promotion and resolution of inflammation for tissue repair. Because of that, this work is claimed to describe the role that squalene exerts in the immunomodulation of M1 proinflammatory macrophages, which are the first cells implicate in recent injuries. Pro- and anti-inflammatory cytokines were analysed using TPH1 cell experimental model. SQ induced an increase in the synthesis of anti-inflammatory cytokines, such as IL-10, IL-13, and IL-4, and a decrease in proinflammatory signals, such as TNF-α and NF-κB in M1 proinflammatory macrophages. Furthermore, SQ enhanced remodelling and repairing signals (TIMP-2) and recruitment signals of eosinophils and neutrophils, responsible for phagocytosis processes. These results suggest that SQ is able to promote wound healing by driving macrophage response in inflammation. Therefore, squalene could be useful at the resolution stage of wound healing.

14.
Gac Sanit ; 32(6): 584-587, 2018.
Article in Spanish | MEDLINE | ID: mdl-29329792

ABSTRACT

Health promotion can contribute towards reducing inequality and ensuring equal opportunities, providing the means to enable the entire population to develop its maximum health possibilities. Women living in areas with social transformation needs (ASTN) are an especially vulnerable group due to the situation of material deprivation and social exclusion in which they live. Health promotion programmes for this group can bring about an improvement in their health. This paper describes the health promotion programme Socio-educational Groups of Primary Care for Women (SEGPC-W), and evaluates its implementation in ASTN in the city of Seville (Spain), as well as the benefits and difficulties of its development through a documentary analysis and interviews with participating professionals.


Subject(s)
Health Promotion/organization & administration , Poverty Areas , Women's Health , Female , Healthcare Disparities , Humans , Interviews as Topic , Program Development , Qualitative Research , Social Alienation , Spain , Urban Population
15.
J Sci Food Agric ; 97(1): 299-308, 2017 Jan.
Article in English | MEDLINE | ID: mdl-27012152

ABSTRACT

BACKGROUND: Fish discards represent an important under-utilisation of marine resources. This study evaluated the up-grading of the protein fraction of blue whiting (Micromesistius poutassou) discards by the production of fish protein hydrolysates (FPHs) exhibiting functional, antioxidant, angiotensin-I converting enzyme (ACE)-inhibitory and antigenicity properties. RESULTS: FPHs with low DH (4%) showed better emulsifying, foaming and oil binding capacities, particularly those obtained using only trypsin. FPHs with DH 4% exhibited also the stronger antioxidant activity, especially the one obtained using only subtilisin (IC50 = 1.36 mg protein mL-1 ). The presence of hydrophobic residues at the C-terminal of the FPH produced using subtilisin also led to the stronger ACE-inhibitory activity. However, FPHs with high DH (12%), which implies a higher proportion of short peptides, was required to enhance ACE-inhibition (IC50 = 172 µg protein mL-1 ). The antigenic levels of the FPH were also reduced with DH independently of the enzymatic treatment. Nevertheless, the highest degradation of fish allergens (e.g. parvalbumin) was also obtained when using only subtilisin. CONCLUSION: These results suggest that added-value products for food applications can be produced from the protein fraction of discards. © 2016 Society of Chemical Industry.


Subject(s)
Fish Proteins/metabolism , Gadiformes , Protein Hydrolysates/metabolism , Seafood , Angiotensin-Converting Enzyme Inhibitors , Animals , Antigens/immunology , Antioxidants , Food Industry , Hydrolysis , Industrial Waste/analysis , Protein Hydrolysates/immunology , Protein Hydrolysates/pharmacology
16.
BMC Complement Altern Med ; 16: 350, 2016 Sep 07.
Article in English | MEDLINE | ID: mdl-27604292

ABSTRACT

BACKGROUND: Consumption of virgin olive oil (VOO) has been associated with a low breast cancer incidence. Pinoresinol is a phytoestrogen that is typically found in VOO. Considering the role of oestrogen in breast cancer development and progression, we investigated the potential antitumor activity of pinoresinol in breast cancer cells. METHODS: To address this question, we treated MDA-MB-231 (oestrogen receptor [ER] negative) and MCF7 (ER+) human breast tumour cells and MCF10A human mammary epithelial cells (ER-) with different concentrations of pinoresinol. The cytotoxic activity, cell proliferation, cell cycle profile, apoptosis induction, reactive oxygen species production and DNA damage were assessed. RESULTS: Pinoresinol showed cytotoxic, anti-proliferative and pro-oxidant activity in human breast tumour cells, independent of their oestrogen receptor status. In addition, pinoresinol exerted antioxidant activity and prevented DNA damage associated with oxidative stress in human mammary epithelial cells. CONCLUSIONS: Overall, the results suggest that pinoresinol may have antitumor activity in human breast cancer cells independently of oestrogen receptor status. Furthermore, the results show that the pinoresinol has the typical characteristics of a chemopreventive compound.


Subject(s)
Antineoplastic Agents, Phytogenic/pharmacology , Breast Neoplasms/metabolism , Furans/pharmacology , Lignans/pharmacology , Phytoestrogens/pharmacology , Apoptosis/drug effects , Cell Cycle/drug effects , Cell Line, Tumor , Cell Proliferation/drug effects , Cell Survival/drug effects , Humans , Olive Oil/chemistry , Receptors, Estrogen/metabolism
17.
Molecules ; 20(8): 13670-88, 2015 Jul 28.
Article in English | MEDLINE | ID: mdl-26225949

ABSTRACT

Oleanolic acid (AO) and maslinic acid (MA) are constituents of the skins of different fruits, including olives and white or red grapes. Although both compounds are known to have beneficial properties against different types of cancers, thus far, there are no studies about their chemopreventive effects in human breast cancer. Thus, we sought to elucidate whether both compounds possess chemopreventive activity. Two cell lines of human breast cancer cells and one noncancerous human mammary epithelial cells were used to determine the effects of OA and MA. The results showed that OA inhibited the proliferation and increased the oxidative stress of highly invasive cells. Additionally, OA decreased oxidative stress and oxidative damage to the DNA in human mammary epithelial cells. These results suggest that OA could act as a chemopreventive agent in human breast cancer and could inhibit the proliferation of highly invasive breast cancer cells.


Subject(s)
Antineoplastic Agents, Phytogenic , Breast Neoplasms/prevention & control , DNA Damage , Mammary Glands, Human/metabolism , Olea/chemistry , Oleanolic Acid/chemistry , Vitis/chemistry , Antineoplastic Agents, Phytogenic/chemistry , Antineoplastic Agents, Phytogenic/isolation & purification , Antineoplastic Agents, Phytogenic/pharmacology , Breast Neoplasms/pathology , Cell Proliferation/drug effects , Epithelial Cells/metabolism , Epithelial Cells/pathology , Female , Humans , Mammary Glands, Human/pathology
18.
Article in English | MEDLINE | ID: mdl-25821495

ABSTRACT

The inflammatory process is involved in the genesis and evolution of different diseases like obesity, cardiovascular disease, and cancer. Macrophages play a central role in inflammation. In addition, they can regulate some stages of cancer development. Macrophages can polarize into M1 or M2 functional phenotype depending on the cytokines present in the tissue microenvironment. On the other hand, triterpenes found in virgin olive oil are described to present different properties, such as antitumoral and anti-inflammatory activity. The present study was designed to elucidate if the four major triterpenes found in virgin olive oil (oleanolic acid, maslinic acid, uvaol, and erythrodiol) are able to enhance M1 macrophage response which represents an important defense mechanism against cancer. Our results indicated that maslinic acid modulated the inflammatory response by enhancing the production of IL-8, IL-1α, and IL-1ß; it promoted M1 response through the synthesis of IFN-γ; and finally it did not modify significantly the levels of NFκß or NO. Overall, our results showed that maslinic acid could prevent chronic inflammation, which represents a crucial step in the development of some cancers.

19.
Food Funct ; 6(1): 249-56, 2015 Jan.
Article in English | MEDLINE | ID: mdl-25412049

ABSTRACT

Uvaol (UV) and erythrodiol (ER) are two triterpenic dialcohols present in the minor fraction of virgin olive oil, in leaves and in the drupe of olives. These triterpenes possess the same chemical structure and differ only in the location of a methyl group. It has been reported that they have antitumoral effects in leukemic cells, in skin mice tumours and, finally, in astrocytoma cells, but there are no evidences about their effects in highly invasive human breast cancer cells and human epithelial breast cells. For this purpose, we have evaluated their cytotoxic activities as well as their effects on cell proliferation, cell cycle profile, apoptotic induction, oxidative stress and DNA oxidative damage in both highly invasive human breast cancer cells (MDA-MB-231) and human epithelial breast cells (MCF10A). UV and ER showed different effects in normal and breast cancer cells, whereas both compounds possess the same structure, except for the location of a methyl group. UV protects from damage to DNA in both cell lines, whereas ER enhances damage to DNA in these cell lines. Thus, ER promotes apoptosis and arrests cell cycle in human epithelial breast cells. Hence, both compounds differ in their action in human breast cells apparently by the different location of only a methyl group.


Subject(s)
Antineoplastic Agents, Phytogenic/pharmacology , Breast Neoplasms/drug therapy , Breast/drug effects , Fruit/chemistry , Olea/chemistry , Oleanolic Acid/analogs & derivatives , Triterpenes/pharmacology , Antineoplastic Agents, Phytogenic/adverse effects , Antineoplastic Agents, Phytogenic/chemistry , Antioxidants/adverse effects , Antioxidants/chemistry , Antioxidants/pharmacology , Apoptosis/drug effects , Breast/cytology , Breast/metabolism , Breast/pathology , Breast Neoplasms/metabolism , Breast Neoplasms/pathology , Cell Line , Cell Line, Tumor , Cell Proliferation/drug effects , Cell Survival/drug effects , Comet Assay , Female , Humans , Methylation , Molecular Structure , Neoplasm Invasiveness , Oleanolic Acid/adverse effects , Oleanolic Acid/chemistry , Oleanolic Acid/pharmacology , Oxidative Stress/drug effects , Reactive Oxygen Species/antagonists & inhibitors , Reactive Oxygen Species/metabolism , Stereoisomerism , Triterpenes/adverse effects , Triterpenes/chemistry
20.
J Agric Food Chem ; 61(50): 12173-82, 2013 Dec 18.
Article in English | MEDLINE | ID: mdl-24279741

ABSTRACT

Oleanolic acid, maslinic acid, uvaol, and erythrodiol are the main triterpenes present in olives, olive tree leaves, and virgin olive oil. Their concentration in virgin olive oil depends on the quality of the olive oil and the variety of the olive tree. These triterpenes are described to present different properties, such as antitumoral activity, cardioprotective activity, anti-inflammatory activity, and antioxidant protection. Olive oil triterpenes are a natural source of antioxidants that could be useful compounds for the prevention of multiple diseases related to cell oxidative damage. However, special attention has to be paid to the concentrations used, because higher concentration may lead to cytotoxic or biphasic effects. This work explores all of the bioactive properties so far described for the main triterpenes present in virgin olive oil.


Subject(s)
Antioxidants/analysis , Olea/chemistry , Plant Oils/chemistry , Triterpenes/analysis , Animals , Antioxidants/pharmacology , Drug Therapy , Humans , Olive Oil , Plant Leaves/chemistry , Triterpenes/pharmacology
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