Lifestyle GenomicsPub Date : 2022-01-01Epub Date: 2022-06-10DOI: 10.1159/000525112
Menglan Liu, Tianli Ren, Zhi Lin, Minhui Hua
{"title":"Upregulated miR-146a Expression in Peripheral Blood Relates to Th17 and Treg Imbalance in Elder Rheumatoid Arthritis Patients.","authors":"Menglan Liu, Tianli Ren, Zhi Lin, Minhui Hua","doi":"10.1159/000525112","DOIUrl":"10.1159/000525112","url":null,"abstract":"<p><strong>Background: </strong>The expression level of microRNA-146a (miR-146a) increased in peripheral blood and synovialis tissue of rheumatoid arthritis (RA) patient, and it may play an important role in the pathological process of RA. We investigated its possibility as a diagnostic marker and the correlation with T helper 17 (Th17) and Treg cells in elder RA patients.</p><p><strong>Methods: </strong>Blood samples were collected from 38 active RA patients, 38 inactive RA patients, and 40 healthy controls. RNA expression levels of miR-146a were detected from the peripheral blood samples. The proportion of Th17 and Treg cells were analyzed, as well as their cell-specific transcription factor retinoic acid-related orphan receptor variant 2 (RORc) and forkhead box protein 3 (FOXP3). Furthermore, secretion of pre-inflammatory and anti-inflammatory factors was detected. Correlations between miR-146a and these factors were also analyzed.</p><p><strong>Results: </strong>Compared with healthy control, expression levels of miR-146a in inactive and active groups were significantly higher, with the highest level in active group. The expression of miR-146a and the RA severity, Th17 cell ratio, RORc expression, IL-17 level showed a significant positive correlation, while it showed a significantly negative correlation with Treg cell ration, FOXP3 expression, and TGF-β1 secretion.</p><p><strong>Conclusions: </strong>These results suggested that miR-146a may be used as a disease progression marker in the peripheral blood of elder RA patients.</p>","PeriodicalId":18030,"journal":{"name":"Lifestyle Genomics","volume":" ","pages":"98-106"},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40402736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lifestyle GenomicsPub Date : 2021-01-01Epub Date: 2021-06-29DOI: 10.1159/000517609
{"title":"Proceedings of the 4th European Summer School on Nutrigenomics (ESSN 2021), June 21-25, 2021.","authors":"","doi":"10.1159/000517609","DOIUrl":"https://doi.org/10.1159/000517609","url":null,"abstract":"","PeriodicalId":18030,"journal":{"name":"Lifestyle Genomics","volume":"14 3","pages":"91-116"},"PeriodicalIF":2.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000517609","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39119288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lifestyle GenomicsPub Date : 2021-01-01Epub Date: 2021-01-18DOI: 10.1159/000512690
Ron L Martin
{"title":"Gene-Centric Database Reveals Environmental and Lifestyle Relationships for Potential Risk Modification and Prevention.","authors":"Ron L Martin","doi":"10.1159/000512690","DOIUrl":"https://doi.org/10.1159/000512690","url":null,"abstract":"<p><p>The database at Nutrigenetics.net has been under development since 2007 to facilitate the identification and classification of PubMed articles relevant to human genetics. A controlled vocabulary (i.e., standardized terminology) is used to index these records, with links back to PubMed for every article title. This enables the display of indexes (alphabetical subtopic listings) for any given topic, or for any given combination of topics, including for genes and specific genetic variants. Stepwise use of such indexes (first for one topic, then for combinations of topics) can reveal relationships that are otherwise easily overlooked. These relationships include environmental and lifestyle variables with potential relevance to risk modification (both beneficial and detrimental), and to prevention, or at least to the potential delay of symptom onset for health conditions like Alzheimer disease among many others. Thirty-four specific genetic variants have each been mentioned in at least ≥1,000 PubMed titles/abstracts, and these numbers are steadily increasing. The benefits of indexing with standardized terminology are illustrated for genetic variants like MTHFR 677C-T and its various synonyms (e.g., rs1801133 or Ala222Val). Such use of a controlled vocabulary is also helpful for numerous health conditions, and for potential risk modifiers (i.e., potential risk/effect modifiers).</p>","PeriodicalId":18030,"journal":{"name":"Lifestyle Genomics","volume":"14 1","pages":"30-36"},"PeriodicalIF":2.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000512690","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38831667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lifestyle GenomicsPub Date : 2021-01-01Epub Date: 2021-02-02DOI: 10.1159/000513886
Artemis P Simopoulos
{"title":"Genetic Variation, Diet, Inflammation, and the Risk for COVID-19.","authors":"Artemis P Simopoulos","doi":"10.1159/000513886","DOIUrl":"10.1159/000513886","url":null,"abstract":"<p><p>COVID-19, which is caused by SARS-CoV-2, is characterized by various symptoms, ranging from mild fatigue to life-threatening pneumonia, \"cytokine storm,\" and multiorgan failure. The manifestation of COVID-19 may lead to a cytokine storm, i.e., it facilitates viral replication that triggers a strong release of cytokines, which then modulates the immune system and results in hyperinflammation. Today's diet is high in omega-6 fatty acids and deficient in omega-3 fatty acids; this, along with a high fructose intake, leads to obesity, which is a chronic state of low-grade inflammation. Omega-6 fatty acids are proinflammatory and prothrombotic whereas omega-3 fatty acids are less proinflammatory and thrombotic. Furthermore, omega-3 fatty acids make specialized lipid mediators, namely resolvins, protectins, and maresins, that are potent anti-inflammatory agents. Throughout evolution there was a balance between omega-6 and omega-3 fatty acids with a ratio of 1-2/1 omega-6/omega-3, but today this ratio is 16-20/1 omega-6/omega-3, leading to a proinflammatory state. In addition, genetic variants in FADS1, FADS2, ELOV-2, and ELOV-5 lead to a more efficient biosynthesis of long-chain polyunsaturated fatty acids (PUFAs), e.g., of linoleic acid (LA) to arachidonic acid (ARA), and (alpha-linolenic acid) (ALA) to eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), leading to higher ARA levels. Because the US diet is already high in omega-6 fatty acids, the increased biosynthesis of ARA in people with the derived FADS haplotype (haplotype D) leads to an increased production of leukotrienes, thromboxanes, C-reactive protein (CRP), and eventually elevated levels of cytokines, like interleukin (IL)-1, IL-6, and tumor necrosis factor (TNF), which may increase susceptibility to COVID-19. About 80% of African Americans, 50% of Hispanics, and 45% of European Americans have the FADS haplotype D and are thus efficient metabolizers, which could account for the higher vulnerability of these populations to COVID-19. Therefore, another reason that African Americans and Hispanics are more susceptible to COVID-19 is that they have a higher frequency of haplotype D, which is no longer beneficial in today's environment and diet. Genetic variation must be considered in all studies of disease development and therapy because it is important to the practice of precision nutrition by physicians and other health professionals. The objective of this commentary is to emphasize the importance of genetic variation within populations and its interaction with diet in the development of disease. Differences in the frequency of genes and their interactions with nutrients in various population groups must be considered among the factors contributing to health disparities in the development of COVID-19. A balanced omega-6/omega-3 ratio is essential to health. Physicians should measure their patients' fatty acids and recommend decreasing the intake of foods rich in omega-6 fatty aci","PeriodicalId":18030,"journal":{"name":"Lifestyle Genomics","volume":"14 2","pages":"37-42"},"PeriodicalIF":2.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/ef/14/lfg-0001.PMC7900446.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25323638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lifestyle GenomicsPub Date : 2021-01-01Epub Date: 2021-02-24DOI: 10.1159/000513885
Mohammad Nosrati-Oskouie, Golaleh Asghari, Emad Yuzbashian, Nazanin Sadat Aghili-Moghaddam, Maryam Zarkesh, Mohammad Safarian, Parvin Mirmiran
{"title":"Does Dietary Intake Impact Omentin Gene Expression and Plasma Concentration? A Systematic Review.","authors":"Mohammad Nosrati-Oskouie, Golaleh Asghari, Emad Yuzbashian, Nazanin Sadat Aghili-Moghaddam, Maryam Zarkesh, Mohammad Safarian, Parvin Mirmiran","doi":"10.1159/000513885","DOIUrl":"https://doi.org/10.1159/000513885","url":null,"abstract":"<p><strong>Background: </strong>Omentin is an adipokine with anti-inflammatory and insulin-sensitizing effects that can play a protective role against cardiovascular disease and diabetes. The aim was to systematically review and summarize the existing evidence on the association between overall dietary intake and omentin gene expression and circulation.</p><p><strong>Summary: </strong>A literature search was conducted in PubMed, Scopus, and Web of Science up to September 2019. Of the 1,940 retrieved articles, 20 relevant studies were included, 6 of which were observational, 11 were clinical trials in humans, and 3 were animal studies. Four randomized controlled trials (RCTs) had a high risk of bias (RoB), 1 had \"some concerns\", and 2 had a low RoB. Among the nonrandomized studies with comparators, 4 had a serious RoB and 2 had a moderate RoB. In the experimental animal studies with a moderate RoB, conflicting results for omentin serum concentration were found for high-fat and low-fat diets. A high-fat diet (HFD) was shown to reduce omentin gene expression in one animal study. In the observational studies, omentin serum concentration was reduced by Ramadan fasting and saturated fatty acid (SFA) intake, and an increase in omentin gene expression was observed with monounsaturated fatty acid (MUFA) intake. There was no association of dietary inflammatory index (DII), macronutrient intake, or total calorie intake with omentin plasma concentrations. In the human interventional studies, omentin plasma concentration increased with a long-term low-calorie, low-fat diet (LFD), and no change was seen with a HFD or a short-term low-calorie diet (LCD). Key Messages: It seems that a long-term diet with a lower fat content and a balanced distribution of fatty acids, i.e., a higher MUFA and lower SFA intake, may effectively increase omentin plasma concentration, possibly via improved insulin resistance and reduced inflammation, but more research is needed to confirm or refute this.</p>","PeriodicalId":18030,"journal":{"name":"Lifestyle Genomics","volume":"14 2","pages":"49-61"},"PeriodicalIF":2.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000513885","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25407383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lifestyle GenomicsPub Date : 2021-01-01Epub Date: 2021-09-24DOI: 10.1159/000519267
{"title":"14th Congress of the International Society of Nutrigenetics/Nutrigenomics (ISNN).","authors":"","doi":"10.1159/000519267","DOIUrl":"https://doi.org/10.1159/000519267","url":null,"abstract":"","PeriodicalId":18030,"journal":{"name":"Lifestyle Genomics","volume":"14 4","pages":"129-152"},"PeriodicalIF":2.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39450793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lifestyle GenomicsPub Date : 2021-01-01Epub Date: 2021-07-21DOI: 10.1159/000517760
Olivia M Dong
{"title":"Using the Diffusion of Innovation Theory to Understand the Challenges and Opportunities to Advancing Use of Nutrigenetics in Clinical Practice.","authors":"Olivia M Dong","doi":"10.1159/000517760","DOIUrl":"https://doi.org/10.1159/000517760","url":null,"abstract":"The National Human Genome Research Institute (NHGRI) published bold predictions for genomic medicine to strive toward by 2030 [1]. These predictions outline a promising impact genomic information will have on health, including aspirations such as enabling individuals to securely access genome sequencing results on their smartphones and making the use of genomic information as routine in all clinical settings [1]. One application of genomic medicine is nutrigenetics (NGx), which investigates the associations between genetic variants, diet, and health outcomes [2]. NGx has the potential to use genetic information in ways that can further individualize nutrition interventions to help patients achieve improved health outcomes. While incorporating NGx testing as part of clinical care is promising, it is not routinely done in clinical settings. To better understand how NGx testing can strive toward routine use per NHGRI’s aspirational goals, the diffusion of innovation (DOI) theory will be used as a framework to examine the challenges and opportunities of integrating NGx testing into clinical care. The DOI theory seeks to explain the spread of innovations through populations and how they get adopted over time [3], with recognition that the majority of innovations fail to successfully diffuse through populations and that adoption is not necessarily based on the effectiveness of innovations [4]. In fact, effective innovations can be stalled, while ineffective innovations can sometimes diffuse farther in comparison [4]. The adoption rate for innovations relies on several factors, including the perceived attributes of the innovation, characteristics of the adopters, communication channels (e.g., mass media), and the social system (e.g., diffusion within health-care systems) [3]. The perceived attributes of NGx testing and characteristics of adopters will be discussed in more detail.","PeriodicalId":18030,"journal":{"name":"Lifestyle Genomics","volume":"14 4","pages":"124-128"},"PeriodicalIF":2.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000517760","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39206096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lifestyle GenomicsPub Date : 2021-01-01Epub Date: 2021-06-16DOI: 10.1159/000516118
Júlia Marchetti, Karla P Balbino, Helen Hermana M Hermsdorff, Leidjaira L Juvanhol, José Alfredo Martinez, Thais Steemburgo
{"title":"Relationship between the FTO Genotype and Early Chronic Kidney Disease in Type 2 Diabetes: The Mediating Role of Central Obesity, Hypertension, and High Albuminuria.","authors":"Júlia Marchetti, Karla P Balbino, Helen Hermana M Hermsdorff, Leidjaira L Juvanhol, José Alfredo Martinez, Thais Steemburgo","doi":"10.1159/000516118","DOIUrl":"https://doi.org/10.1159/000516118","url":null,"abstract":"<p><strong>Introduction: </strong>Single nucleotide polymorphisms (SNP) in the fat mass and obesity-associated (FTO) gene have been associated with type 2 diabetes (T2D) and its complications. The aim of the present research was to investigate which and how (directly or indirectly) clinical and metabolic variables mediate the association between fat mass and the FTO gene and early chronic kidney disease (CKD) in individuals with T2D.</p><p><strong>Methods: </strong>This cross-sectional study was conducted in a sample of 236 participants with T2D (53.4% women, mean age 60 ± 10 years). DNA samples were genotyped for the rs7204609 polymorphism (C/T) in the FTO gene. Clinical, anthropometric, and metabolic data were collected. Path analysis was used to evaluate the associations.</p><p><strong>Results: </strong>Of the sample, 78 individuals with T2D had CKD (33%). Presence of the risk allele (C) was higher among participants with CKD (21.8 vs. 10.8%; p = 0.023). This polymorphism was positively associated with higher waist circumference, which in turn was associated with higher glycated hemoglobin and higher blood pressure. A higher blood-pressure level was associated with higher urinary albumin excretion (UAE) and as expected, higher UAE was associated with CKD. Path analysis showed an indirect relationship between the FTO gene and early CKD, mediated by waist circumference, blood-pressure levels, and UAE.</p><p><strong>Conclusions: </strong>These findings suggest that the C allele may contribute to genetic susceptibility to CKD in individuals with T2D through the presence of central obesity, hypertension, and high albuminuria.</p>","PeriodicalId":18030,"journal":{"name":"Lifestyle Genomics","volume":"14 3","pages":"73-80"},"PeriodicalIF":2.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000516118","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39237455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}