Pub Date : 2024-01-01Epub Date: 2024-08-05DOI: 10.1159/000540336
Cherry Youn, Marie L Caillaud, Yanrong Li, Isabelle Gallagher, Barbara Strasser, Hirofumi Tanaka, Andreana P Haley
Introduction: Large neutral amino acids (LNAAs) tryptophan and phenylalanine have been implicated in the pathogenesis of neurodegenerative diseases. Given limited research on the effects of LNAA on brain health across different life stages, vascular risk, and genetic backgrounds, our study aimed to explore the interaction of LNAA levels, metabolic syndrome (MetS), and the presence of the apolipoprotein E ε4 (ApoE ε4) allele brain integrity at midlife.
Methods: Sixty-eight adults aged 40-61 underwent a health assessment to calculate the number of MetS components, quantify LNAA, measure white matter hyperintensity (WMH) volume, and genotype ApoE ε4. Multivariate linear regression analyses were performed to test the joint effect of LNAA, MetS, and ApoE ε4 on WMH while adjusting for sex, age, and education.
Results: Significant 3-way interactions were observed between serum tryptophan (β = 0.042, SE = 0.018, p < 0.05) and phenylalanine (β = 0.044, SE = 0.013, p < 0.01) levels, number of MetS components, and ApoE ε4 alleles status on WMH volume. Neither individual LNAA levels nor MetS components alone predicted WMH volume.
Conclusions: The study highlights significant 3-way interactions between LNAA, MetS, and genetic risk factors in the pathology of WMH, particularly in individuals genetically predisposed to Alzheimer's disease. These interactions suggest differential impacts of LNAA on WMH volume dependent on both genetic and metabolic factors. Results emphasize the need for personalized metabolic and genetic profile assessments in neurodegenerative disease management.
{"title":"Interplay of Large Neutral Amino Acids, Metabolic Syndrome, and Apolipoprotein E ε4 on Brain Integrity at Midlife.","authors":"Cherry Youn, Marie L Caillaud, Yanrong Li, Isabelle Gallagher, Barbara Strasser, Hirofumi Tanaka, Andreana P Haley","doi":"10.1159/000540336","DOIUrl":"10.1159/000540336","url":null,"abstract":"<p><strong>Introduction: </strong>Large neutral amino acids (LNAAs) tryptophan and phenylalanine have been implicated in the pathogenesis of neurodegenerative diseases. Given limited research on the effects of LNAA on brain health across different life stages, vascular risk, and genetic backgrounds, our study aimed to explore the interaction of LNAA levels, metabolic syndrome (MetS), and the presence of the apolipoprotein E ε4 (ApoE ε4) allele brain integrity at midlife.</p><p><strong>Methods: </strong>Sixty-eight adults aged 40-61 underwent a health assessment to calculate the number of MetS components, quantify LNAA, measure white matter hyperintensity (WMH) volume, and genotype ApoE ε4. Multivariate linear regression analyses were performed to test the joint effect of LNAA, MetS, and ApoE ε4 on WMH while adjusting for sex, age, and education.</p><p><strong>Results: </strong>Significant 3-way interactions were observed between serum tryptophan (β = 0.042, SE = 0.018, p < 0.05) and phenylalanine (β = 0.044, SE = 0.013, p < 0.01) levels, number of MetS components, and ApoE ε4 alleles status on WMH volume. Neither individual LNAA levels nor MetS components alone predicted WMH volume.</p><p><strong>Conclusions: </strong>The study highlights significant 3-way interactions between LNAA, MetS, and genetic risk factors in the pathology of WMH, particularly in individuals genetically predisposed to Alzheimer's disease. These interactions suggest differential impacts of LNAA on WMH volume dependent on both genetic and metabolic factors. Results emphasize the need for personalized metabolic and genetic profile assessments in neurodegenerative disease management.</p>","PeriodicalId":18030,"journal":{"name":"Lifestyle Genomics","volume":" ","pages":"113-121"},"PeriodicalIF":2.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11385466/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141893770","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}
Pub Date : 2024-01-01Epub Date: 2024-07-17DOI: 10.1159/000539077
Ana Clara Fariña, Jimena Verónica Lavandera, Luciana Vera Candioti, Candela Luján Suppo, Claudio Adrián Bernal
Introduction: This study aims to investigate if a mixture of functional lipids (FLs), containing conjugated linoleic acid (CLA), tocopherols (TPs), and phytosterols (PSs), prevents some lipid alterations induced by high-fat (HF) diets, without adverse effects.
Methods: Male CF1 mice (n = 6/group) were fed (4 weeks) with control (C), HF, or HF + FL diets.
Results: FL prevented the overweight induced by the HF diet and reduced the adipose tissue (AT) weight, associated with lower energy efficiency. After the intervention period, the serum triacylglycerol (TAG) levels in both HF diets underwent a decrease associated with an enhanced LPL activity (mainly in muscle). The beneficial effect of the FL mixture on body weight gain and AT weight might be attributed to the decreased lipogenesis, denoted by the lower mRNA levels of SREBP1-c and ACC in AT, as well as by an exacerbated lipid catabolism, reflected by increased mRNA levels of PPARα, ATGL, HSL, and UCP2 in AT. Liver TAG levels were reduced in the HF + FL group due to an elevated lipid oxidation associated with a higher CPT-1 activity and mRNA levels of PPARα and CPT-1a. Moreover, genes linked to fatty acid biosynthesis (SREBP1-c and ACC) showed decreased mRNA levels in both HF diets, this finding being more pronounced in the HF + FL group.
Conclusion: The administration of an FL mixture (CLA + TP + PS) prevented some lipid alterations induced by a HF diet, avoiding frequent deleterious effects of CLA in mice through the modulation of gene expression related to the regulation of lipid metabolism.
{"title":"Nutriomic Effects of Precision Lipids on Murine Hepatic Triacylglycerol Alterations Induced by High-Fat Diets.","authors":"Ana Clara Fariña, Jimena Verónica Lavandera, Luciana Vera Candioti, Candela Luján Suppo, Claudio Adrián Bernal","doi":"10.1159/000539077","DOIUrl":"10.1159/000539077","url":null,"abstract":"<p><strong>Introduction: </strong>This study aims to investigate if a mixture of functional lipids (FLs), containing conjugated linoleic acid (CLA), tocopherols (TPs), and phytosterols (PSs), prevents some lipid alterations induced by high-fat (HF) diets, without adverse effects.</p><p><strong>Methods: </strong>Male CF1 mice (n = 6/group) were fed (4 weeks) with control (C), HF, or HF + FL diets.</p><p><strong>Results: </strong>FL prevented the overweight induced by the HF diet and reduced the adipose tissue (AT) weight, associated with lower energy efficiency. After the intervention period, the serum triacylglycerol (TAG) levels in both HF diets underwent a decrease associated with an enhanced LPL activity (mainly in muscle). The beneficial effect of the FL mixture on body weight gain and AT weight might be attributed to the decreased lipogenesis, denoted by the lower mRNA levels of SREBP1-c and ACC in AT, as well as by an exacerbated lipid catabolism, reflected by increased mRNA levels of PPARα, ATGL, HSL, and UCP2 in AT. Liver TAG levels were reduced in the HF + FL group due to an elevated lipid oxidation associated with a higher CPT-1 activity and mRNA levels of PPARα and CPT-1a. Moreover, genes linked to fatty acid biosynthesis (SREBP1-c and ACC) showed decreased mRNA levels in both HF diets, this finding being more pronounced in the HF + FL group.</p><p><strong>Conclusion: </strong>The administration of an FL mixture (CLA + TP + PS) prevented some lipid alterations induced by a HF diet, avoiding frequent deleterious effects of CLA in mice through the modulation of gene expression related to the regulation of lipid metabolism.</p>","PeriodicalId":18030,"journal":{"name":"Lifestyle Genomics","volume":" ","pages":"82-92"},"PeriodicalIF":2.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141476913","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}
Pub Date : 2024-01-01Epub Date: 2024-07-30DOI: 10.1159/000540549
Sophia M Khan, Robyn R Heister, Justine R Keathley
Background: Phenylketonuria (PKU) is an autosomal recessive genetic condition that results in reduced enzymatic functioning within the phenylalanine hydroxylase (PAH) pathway, which is involved in the metabolism of phenylalanine (Phe) into tyrosine (Tyr). Without dietary intervention, individuals with PKU exhibit significantly elevated levels of Phe, which is presumed to cause severe neurological dysfunction and other associated health risks. Carriers of PKU are heterozygotes for a PAH gene mutation and are typically described in the literature as "unaffected." However, decades of existing research challenges this classical thinking and it is plausible that these individuals currently classified as carriers may present with an intermediate phenotype or may be "moderately affected."
Summary: The purpose of this scoping review was to explore this hypothesis further, by searching for and summarizing existing literature on metabolism and health outcomes among PKU carriers. Preliminary research has suggested that some PKU carriers exhibit reduced PAH enzyme function, and relatedly, elevated circulating Phe levels compared to noncarriers. In addition, Phe dosing trials have further demonstrated that carriers have increased Phe levels and decreased Tyr levels compared to noncarriers. Because of these metabolic perturbations, it is biologically plausible for carriers to experience an intermediate phenotype in terms of metabolic consequences and clinical outcomes. While these outcomes have yet to be thoroughly explored, early research has found associations between PKU carrier status and lower IQs as well as decreased executive functioning, memory, processing speed, and inhibitory control. The PAH pathway is also involved in melanogenesis, and research has demonstrated increased melanoma risk among PKU carriers. However, there are many limitations to this research, and thus whether or not carriers are clinically impacted cannot yet be conclusively determined.
Key message: Overall, while preliminary research suggests a possible intermediate phenotype among PKU carriers, the current available research is limited and PKU carriers are still clinically considered "unaffected." This review outlines the current literature while discussing future research endeavors related to the metabolism and health of PKU carriers.
{"title":"Are Carriers Unaffected? A Literature Review of Metabolic and Health Outcomes among Genetic Carriers of Phenylketonuria.","authors":"Sophia M Khan, Robyn R Heister, Justine R Keathley","doi":"10.1159/000540549","DOIUrl":"10.1159/000540549","url":null,"abstract":"<p><strong>Background: </strong>Phenylketonuria (PKU) is an autosomal recessive genetic condition that results in reduced enzymatic functioning within the phenylalanine hydroxylase (PAH) pathway, which is involved in the metabolism of phenylalanine (Phe) into tyrosine (Tyr). Without dietary intervention, individuals with PKU exhibit significantly elevated levels of Phe, which is presumed to cause severe neurological dysfunction and other associated health risks. Carriers of PKU are heterozygotes for a PAH gene mutation and are typically described in the literature as \"unaffected.\" However, decades of existing research challenges this classical thinking and it is plausible that these individuals currently classified as carriers may present with an intermediate phenotype or may be \"moderately affected.\"</p><p><strong>Summary: </strong>The purpose of this scoping review was to explore this hypothesis further, by searching for and summarizing existing literature on metabolism and health outcomes among PKU carriers. Preliminary research has suggested that some PKU carriers exhibit reduced PAH enzyme function, and relatedly, elevated circulating Phe levels compared to noncarriers. In addition, Phe dosing trials have further demonstrated that carriers have increased Phe levels and decreased Tyr levels compared to noncarriers. Because of these metabolic perturbations, it is biologically plausible for carriers to experience an intermediate phenotype in terms of metabolic consequences and clinical outcomes. While these outcomes have yet to be thoroughly explored, early research has found associations between PKU carrier status and lower IQs as well as decreased executive functioning, memory, processing speed, and inhibitory control. The PAH pathway is also involved in melanogenesis, and research has demonstrated increased melanoma risk among PKU carriers. However, there are many limitations to this research, and thus whether or not carriers are clinically impacted cannot yet be conclusively determined.</p><p><strong>Key message: </strong>Overall, while preliminary research suggests a possible intermediate phenotype among PKU carriers, the current available research is limited and PKU carriers are still clinically considered \"unaffected.\" This review outlines the current literature while discussing future research endeavors related to the metabolism and health of PKU carriers.</p>","PeriodicalId":18030,"journal":{"name":"Lifestyle Genomics","volume":" ","pages":"102-112"},"PeriodicalIF":2.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141855861","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}
Pub Date : 2024-01-01Epub Date: 2024-10-31DOI: 10.1159/000541000
Carolina F Nicoletti, Taís S Assmann, Leticia L Souza, José Alfredo Martinez
Background: Dysregulation of epigenetic processes and abnormal epigenetic profiles are associated with various metabolic disorders. Nutrition, as an environmental factor, can induce epigenetic changes through both direct exposure and transgenerational inheritance, continuously altering gene expression and shaping the phenotype. Nutrients consumed through food or supplementation, such as vitamin B12, folate, vitamin B6, and choline, play a pivotal role in DNA methylation, a critical process for gene regulation. Additionally, there is mounting evidence that the expression of non-coding RNAs (ncRNAs) can be modulated by the intake of specific nutrients and natural compounds, thereby influencing processes involved in the onset and progression of metabolic diseases.
Summary: Evidence suggests that dietary patterns, weight loss interventions, nutrients and nutritional bioactive compounds can modulate the expression of various microRNA (miRNAs) and DNA methylation levels, contributing to the development of metabolic disorders such as obesity and type 2 diabetes. Furthermore, several studies have proposed that DNA methylation and miRNA expression could serve as biomarkers for the effects of weight loss programs.
Key message: Despite ongoing debate regarding the effects of nutrient supplementation on DNA methylation levels and the expression of ncRNAs, certain DNA methylation marks and ncRNA expressions might predict the risk of metabolic disorders and act as biomarkers for forecasting the success of therapies within the framework of precision medicine and nutrition. The role of DNA methylation and miRNA expression as potential mediators of the effects of weight loss underscores their potential as biomarkers for the outcomes of weight loss programs. This highlights the influence of dietary patterns and weight loss interventions on the regulation of miRNA expression and DNA methylation levels, suggesting an interaction between these epigenetic factors and the body's response to weight loss.
背景:表观遗传过程失调和表观遗传特征异常与各种代谢紊乱有关。营养作为一种环境因素,可通过直接暴露和跨代遗传诱导表观遗传变化,不断改变基因表达并塑造表型。通过食物或补充剂摄入的营养素,如维生素 B12、叶酸、维生素 B6 和胆碱,在 DNA 甲基化这一基因调控的关键过程中发挥着举足轻重的作用。此外,越来越多的证据表明,非编码 RNA(ncRNA)的表达可通过摄入特定的营养素和天然化合物来调节,从而影响代谢性疾病的发生和发展过程。摘要:有证据表明,饮食模式、减肥干预措施、营养素和营养生物活性化合物可调节各种 miRNA 的表达和 DNA 甲基化水平,从而导致肥胖和 2 型糖尿病等代谢性疾病的发生。此外,一些研究还提出,DNA甲基化和microRNA(miRNA)的表达可作为减肥计划效果的生物标志物:尽管营养素补充对 DNA 甲基化水平和 ncRNA 表达的影响仍存在争议,但某些 DNA 甲基化标记和 ncRNA 表达可预测代谢紊乱的风险,并可作为生物标记预测精准医学和营养学框架内疗法的成功与否。DNA 甲基化和 miRNA 表达是减肥效果的潜在介导因素,这凸显了它们作为减肥计划结果生物标志物的潜力。这凸显了饮食模式和减肥干预对 miRNA 表达和 DNA 甲基化水平调控的影响,表明这些表观遗传因素与人体对减肥的反应之间存在相互作用。
{"title":"DNA Methylation and Non-Coding RNAs in Metabolic Disorders: Epigenetic Role of Nutrients, Dietary Patterns, and Weight Loss Interventions for Precision Nutrition.","authors":"Carolina F Nicoletti, Taís S Assmann, Leticia L Souza, José Alfredo Martinez","doi":"10.1159/000541000","DOIUrl":"10.1159/000541000","url":null,"abstract":"<p><strong>Background: </strong>Dysregulation of epigenetic processes and abnormal epigenetic profiles are associated with various metabolic disorders. Nutrition, as an environmental factor, can induce epigenetic changes through both direct exposure and transgenerational inheritance, continuously altering gene expression and shaping the phenotype. Nutrients consumed through food or supplementation, such as vitamin B12, folate, vitamin B6, and choline, play a pivotal role in DNA methylation, a critical process for gene regulation. Additionally, there is mounting evidence that the expression of non-coding RNAs (ncRNAs) can be modulated by the intake of specific nutrients and natural compounds, thereby influencing processes involved in the onset and progression of metabolic diseases.</p><p><strong>Summary: </strong>Evidence suggests that dietary patterns, weight loss interventions, nutrients and nutritional bioactive compounds can modulate the expression of various microRNA (miRNAs) and DNA methylation levels, contributing to the development of metabolic disorders such as obesity and type 2 diabetes. Furthermore, several studies have proposed that DNA methylation and miRNA expression could serve as biomarkers for the effects of weight loss programs.</p><p><strong>Key message: </strong>Despite ongoing debate regarding the effects of nutrient supplementation on DNA methylation levels and the expression of ncRNAs, certain DNA methylation marks and ncRNA expressions might predict the risk of metabolic disorders and act as biomarkers for forecasting the success of therapies within the framework of precision medicine and nutrition. The role of DNA methylation and miRNA expression as potential mediators of the effects of weight loss underscores their potential as biomarkers for the outcomes of weight loss programs. This highlights the influence of dietary patterns and weight loss interventions on the regulation of miRNA expression and DNA methylation levels, suggesting an interaction between these epigenetic factors and the body's response to weight loss.</p>","PeriodicalId":18030,"journal":{"name":"Lifestyle Genomics","volume":" ","pages":"151-165"},"PeriodicalIF":2.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142558184","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}
Pub Date : 2024-01-01Epub Date: 2023-11-22DOI: 10.1159/000535397
Sofía Morán-Ramos, Ruth Soriano-Cortés, Valeria Soto-Fuentes, Amyris Tenorio-Quiroz, Emmanuel Gervasio-Ortiz, Dulce Rico-Amador, Miguel Herrera, Mauricio Sierra-Salazar, Carlos A Aguilar-Salinas, Bárbara Antuna-Puente, Marcela Rodríguez-Flores
Introduction: Roux-en-Y gastric bypass (RYGB) substantially alters the gut microbial composition which could be associated with the metabolic improvements seen after surgery. Few studies have been conducted in Latin American populations, such as Mexico, where obesity prevalence is above 30% in the adult population. Thus, the aim of this study was to characterize the changes in the gut microbiota structure in a Mexican cohort before and after RYGB and to explore whether surgery-related changes in the microbial community were associated with weight loss.
Methods: Biological samples from patients who underwent RYGB were examined before and 12 months after surgery. Fecal microbiota characterization was performed through 16S rRNA sequencing.
Results: Twenty patients who underwent RYGB showed a median excess weight loss of 66.8% 12 months after surgery. Surgery increased alpha diversity estimates (Chao, Shannon index, and observed operational taxonomic units, p < 0.05) and significantly altered gut microbiota composition. Abundance of four genera was significantly increased after surgery: Oscillospira, Veillonella, Streptococcus, and an unclassified genus from Enterobacteriaceae family (PFDR < 0.1). The change in Veillonella abundance was associated with lower excess weight loss (rho = -0.446, p = 0.063) and its abundance post-surgery with a greater BMI (rho = 0.732, p = 5.4 × 10-4). In subjects without type 2 diabetes, lower bacterial richness and diversity before surgery were associated with a greater Veillonella increase after surgery (p < 0.05), suggesting that a lower bacterial richness before surgery could favor the bloom of certain oral-derived bacteria that could negatively impact weight loss.
Conclusion: Presurgical microbiota profile may favor certain bacterial changes associated with less successful results.
{"title":"Role of Presurgical Gut Microbial Diversity in Roux-en-Y Gastric Bypass Weight-Loss Response: A Cohort Study.","authors":"Sofía Morán-Ramos, Ruth Soriano-Cortés, Valeria Soto-Fuentes, Amyris Tenorio-Quiroz, Emmanuel Gervasio-Ortiz, Dulce Rico-Amador, Miguel Herrera, Mauricio Sierra-Salazar, Carlos A Aguilar-Salinas, Bárbara Antuna-Puente, Marcela Rodríguez-Flores","doi":"10.1159/000535397","DOIUrl":"10.1159/000535397","url":null,"abstract":"<p><strong>Introduction: </strong>Roux-en-Y gastric bypass (RYGB) substantially alters the gut microbial composition which could be associated with the metabolic improvements seen after surgery. Few studies have been conducted in Latin American populations, such as Mexico, where obesity prevalence is above 30% in the adult population. Thus, the aim of this study was to characterize the changes in the gut microbiota structure in a Mexican cohort before and after RYGB and to explore whether surgery-related changes in the microbial community were associated with weight loss.</p><p><strong>Methods: </strong>Biological samples from patients who underwent RYGB were examined before and 12 months after surgery. Fecal microbiota characterization was performed through 16S rRNA sequencing.</p><p><strong>Results: </strong>Twenty patients who underwent RYGB showed a median excess weight loss of 66.8% 12 months after surgery. Surgery increased alpha diversity estimates (Chao, Shannon index, and observed operational taxonomic units, p < 0.05) and significantly altered gut microbiota composition. Abundance of four genera was significantly increased after surgery: Oscillospira, Veillonella, Streptococcus, and an unclassified genus from Enterobacteriaceae family (PFDR < 0.1). The change in Veillonella abundance was associated with lower excess weight loss (rho = -0.446, p = 0.063) and its abundance post-surgery with a greater BMI (rho = 0.732, p = 5.4 × 10-4). In subjects without type 2 diabetes, lower bacterial richness and diversity before surgery were associated with a greater Veillonella increase after surgery (p < 0.05), suggesting that a lower bacterial richness before surgery could favor the bloom of certain oral-derived bacteria that could negatively impact weight loss.</p><p><strong>Conclusion: </strong>Presurgical microbiota profile may favor certain bacterial changes associated with less successful results.</p>","PeriodicalId":18030,"journal":{"name":"Lifestyle Genomics","volume":" ","pages":"12-21"},"PeriodicalIF":2.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138295445","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}
Zeinab Yazdanpanah, H. Mozaffari‐khosravi, Mehdi Mollahosseini, Zahra Darabi, H. Ashrafzadeh, Masoud Mirzaei, M. Sheikhha, Amin Salehi-Abargouei
Introduction: The aim of the study was to assess the interaction between CD36 rs1761667 and dietary phytochemical index (DPI) on the risk factors related to MetS among apparently healthy adults. Methods: This cross-sectional study was conducted on 387 apparently healthy adults (20–70 years) of the recruitment phase of Yazd Health Study (YaHS). DPI was calculated using data from a validated, and reliable food frequency questionnaire. Genotyping of rs1761667 was performed by polymerase chain reaction-restriction fragment length polymorphism method. All participants were categorized into two categories, based on DPI scores. The interactions were tested using logistic regression in adjusted and unadjusted models. Results: There was no significant association between CD36 gene polymorphism rs1761667 and metabolic syndrome components as well as DPI score was not associated with the components of MetS. Significant interactions were observed between DPI and rs1761667 polymorphism on the odds of metabolic syndrome (P = 0.05) and odds of abdominal obesity (P = 0.01), so that, higher adherence to this index was associated with a low risk of MetS and abdominal obesity in individuals with AG genotype. In contrast, increased adherence to the DPI was associated with higher odds of abdominal obesity among the AA genotype. Conclusion: The AG genotype appears to be a protective factor against the risk of MetS and abdominal obesity with greater adherence to DPI. However, additional research is needed to elucidate these interactions and the mechanisms behind these associations.
{"title":"The interaction between the dietary phytochemical index and CD36 rs1761667 polymorphism on the risk factors related to metabolic syndrome","authors":"Zeinab Yazdanpanah, H. Mozaffari‐khosravi, Mehdi Mollahosseini, Zahra Darabi, H. Ashrafzadeh, Masoud Mirzaei, M. Sheikhha, Amin Salehi-Abargouei","doi":"10.1159/000535337","DOIUrl":"https://doi.org/10.1159/000535337","url":null,"abstract":"Introduction: The aim of the study was to assess the interaction between CD36 rs1761667 and dietary phytochemical index (DPI) on the risk factors related to MetS among apparently healthy adults. Methods: This cross-sectional study was conducted on 387 apparently healthy adults (20–70 years) of the recruitment phase of Yazd Health Study (YaHS). DPI was calculated using data from a validated, and reliable food frequency questionnaire. Genotyping of rs1761667 was performed by polymerase chain reaction-restriction fragment length polymorphism method. All participants were categorized into two categories, based on DPI scores. The interactions were tested using logistic regression in adjusted and unadjusted models. Results: There was no significant association between CD36 gene polymorphism rs1761667 and metabolic syndrome components as well as DPI score was not associated with the components of MetS. Significant interactions were observed between DPI and rs1761667 polymorphism on the odds of metabolic syndrome (P = 0.05) and odds of abdominal obesity (P = 0.01), so that, higher adherence to this index was associated with a low risk of MetS and abdominal obesity in individuals with AG genotype. In contrast, increased adherence to the DPI was associated with higher odds of abdominal obesity among the AA genotype. Conclusion: The AG genotype appears to be a protective factor against the risk of MetS and abdominal obesity with greater adherence to DPI. However, additional research is needed to elucidate these interactions and the mechanisms behind these associations.","PeriodicalId":18030,"journal":{"name":"Lifestyle Genomics","volume":"46 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139223793","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}
Background: Cardiovascular diseases (CVD) are the leading cause of death globally, making their prevention a major challenge for modern society. For decades, treatments aimed at reducing CVD risk factors through nutritional recommendations and medications have had variable success. One of the main reasons behind this is the interindividual variability in response to drugs and nutritional interventions. The development of genomics has allowed the discovery of genetic variants influencing drug and food response, leading to more personalized treatments in the form of precision medicine and precision nutrition. The latter is based on the principle that one diet does not fit all and the need to stratify individuals into subgroups based on their response to nutrients. Despite showing great promise in pushing forward the field of nutrition, health professionals have very little knowledge of precision nutrition, even though the general population is showing interest in more personalized nutritional guidance. Summary: This review aims to provide an overview of key sources of interindividual variability observed in CVD risk factors in response to nutritional interventions. Despite some limitations, genetic testing is a mature predictive tool that should be at the forefront of tailored nutrition recommendations for CVD prevention. Although the epigenome-diet relationship shows great promise, it is still too early in its development to allow for its clinical deployment. Metabolomics has the potential to enhance genetic testing by complementing traditional self-reported dietary intake instruments as well as a very promising metabotyping method. Microbiome phenotyping, despite its complexity, provides a wealth of information on the health status of the host and its response to nutrients. Finally, current applications are discussed and an outline of the required steps for a successful implementation of precision nutrition in clinical practice as a tool for CVD prevention is presented. Key Messages: Precision nutrition is the cornerstone of a promising approach offering targeted nutritional recommendations for CVD prevention.
{"title":"Precision Nutrition for Cardiovascular Diseases Prevention","authors":"L. Desjardins, M. Vohl","doi":"10.1159/000529054","DOIUrl":"https://doi.org/10.1159/000529054","url":null,"abstract":"Background: Cardiovascular diseases (CVD) are the leading cause of death globally, making their prevention a major challenge for modern society. For decades, treatments aimed at reducing CVD risk factors through nutritional recommendations and medications have had variable success. One of the main reasons behind this is the interindividual variability in response to drugs and nutritional interventions. The development of genomics has allowed the discovery of genetic variants influencing drug and food response, leading to more personalized treatments in the form of precision medicine and precision nutrition. The latter is based on the principle that one diet does not fit all and the need to stratify individuals into subgroups based on their response to nutrients. Despite showing great promise in pushing forward the field of nutrition, health professionals have very little knowledge of precision nutrition, even though the general population is showing interest in more personalized nutritional guidance.\u0000\u0000Summary: This review aims to provide an overview of key sources of interindividual variability observed in CVD risk factors in response to nutritional interventions. Despite some limitations, genetic testing is a mature predictive tool that should be at the forefront of tailored nutrition recommendations for CVD prevention. Although the epigenome-diet relationship shows great promise, it is still too early in its development to allow for its clinical deployment. Metabolomics has the potential to enhance genetic testing by complementing traditional self-reported dietary intake instruments as well as a very promising metabotyping method. Microbiome phenotyping, despite its complexity, provides a wealth of information on the health status of the host and its response to nutrients. Finally, current applications are discussed and an outline of the required steps for a successful implementation of precision nutrition in clinical practice as a tool for CVD prevention is presented.\u0000\u0000Key Messages: Precision nutrition is the cornerstone of a promising approach offering targeted nutritional recommendations for CVD prevention.\u0000","PeriodicalId":18030,"journal":{"name":"Lifestyle Genomics","volume":"1 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2023-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48747312","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}
Introduction: Genes encoding catechol-O-methyl-transferase (COMT) and adenosine A2A receptor (ADORA2A) have been shown to influence cognitive performances and responses to caffeine intake during prolonged wakefulness. The rs4680 single-nucleotide polymorphism (SNP) of COMT differentiates on memory score and circulating levels of the neurotrophic factor IGF-1. This study aimed to determine the kinetics of IGF-1, testosterone, and cortisol concentrations during prolonged wakefulness under caffeine or placebo intake in 37 healthy participants, and to analyze whether the responses are dependent on COMT rs4680 or ADORA2A rs5751876 SNPs.
Methods: In caffeine (2.5 mg/kg, twice over 24 h) or placebo-controlled condition, blood sampling was performed at 1 h (08:00, baseline), 11 h, 13 h, 25 h (08:00 next day), 35 h, and 37 h of prolonged wakefulness, and at 08:00 after one night of recovery sleep, to assess hormonal concentrations. Genotyping was performed on blood cells.
Results: Results indicated a significant increase in IGF-1 levels after 25, 35, and 37 h of prolonged wakefulness in the placebo condition, in subjects carrying the homozygous COMT A/A genotype only (expressed in absolute values [±SEM]: 118 ± 8, 121 ± 10, and 121 ± 10 vs. 105 ± 7 ng/mL for A/A, 127 ± 11, 128 ± 12, and 129 ± 13 vs. 120 ± 11 ng/mL for G/G, and 106 ± 9, 110 ± 10, and 106 ± 10 vs. 101 ± 8 ng/mL for G/A, after 25, 35, and 37 h of wakefulness versus 1 h; p < 0.05, condition X time X SNP). Acute caffeine intake exerted a COMT genotype-dependent reducing effect on IGF-1 kinetic response (104 ± 26, 107 ± 27, and 106 ± 26 vs. 100 ± 25 ng/mL for A/A genotype, at 25, 35, and 37 h of wakefulness vs. 1 h; p < 0.05 condition X time X SNP), plus on resting levels after overnight recovery (102 ± 5 vs. 113 ± 6 ng/mL) (p < 0.05, condition X SNP). Testosterone and cortisol concentrations decreased during wakefulness, and caffeine alleviated the testosterone reduction, unrelated to the COMT polymorphism. No significant main effect of the ADORA2A SNP was shown regardless of hormonal responses.
Conclusion: Our results indicated that the COMT polymorphism interaction is important in determining the IGF-1 neurotrophic response to sleep deprivation with caffeine intake (NCT03859882).
{"title":"Effects of Acute Caffeine Intake on Insulin-Like Growth Factor-1 Responses to Total Sleep Deprivation: Interactions with COMT Polymorphism - A Randomized, Crossover Study.","authors":"Catherine Drogou, Fabien Sauvet, Mégane Erblang, Damien Leger, Claire Thomas, Mounir Chennaoui, Danielle Gomez-Merino","doi":"10.1159/000529897","DOIUrl":"10.1159/000529897","url":null,"abstract":"<p><strong>Introduction: </strong>Genes encoding catechol-O-methyl-transferase (COMT) and adenosine A2A receptor (ADORA2A) have been shown to influence cognitive performances and responses to caffeine intake during prolonged wakefulness. The rs4680 single-nucleotide polymorphism (SNP) of COMT differentiates on memory score and circulating levels of the neurotrophic factor IGF-1. This study aimed to determine the kinetics of IGF-1, testosterone, and cortisol concentrations during prolonged wakefulness under caffeine or placebo intake in 37 healthy participants, and to analyze whether the responses are dependent on COMT rs4680 or ADORA2A rs5751876 SNPs.</p><p><strong>Methods: </strong>In caffeine (2.5 mg/kg, twice over 24 h) or placebo-controlled condition, blood sampling was performed at 1 h (08:00, baseline), 11 h, 13 h, 25 h (08:00 next day), 35 h, and 37 h of prolonged wakefulness, and at 08:00 after one night of recovery sleep, to assess hormonal concentrations. Genotyping was performed on blood cells.</p><p><strong>Results: </strong>Results indicated a significant increase in IGF-1 levels after 25, 35, and 37 h of prolonged wakefulness in the placebo condition, in subjects carrying the homozygous COMT A/A genotype only (expressed in absolute values [±SEM]: 118 ± 8, 121 ± 10, and 121 ± 10 vs. 105 ± 7 ng/mL for A/A, 127 ± 11, 128 ± 12, and 129 ± 13 vs. 120 ± 11 ng/mL for G/G, and 106 ± 9, 110 ± 10, and 106 ± 10 vs. 101 ± 8 ng/mL for G/A, after 25, 35, and 37 h of wakefulness versus 1 h; p < 0.05, condition X time X SNP). Acute caffeine intake exerted a COMT genotype-dependent reducing effect on IGF-1 kinetic response (104 ± 26, 107 ± 27, and 106 ± 26 vs. 100 ± 25 ng/mL for A/A genotype, at 25, 35, and 37 h of wakefulness vs. 1 h; p < 0.05 condition X time X SNP), plus on resting levels after overnight recovery (102 ± 5 vs. 113 ± 6 ng/mL) (p < 0.05, condition X SNP). Testosterone and cortisol concentrations decreased during wakefulness, and caffeine alleviated the testosterone reduction, unrelated to the COMT polymorphism. No significant main effect of the ADORA2A SNP was shown regardless of hormonal responses.</p><p><strong>Conclusion: </strong>Our results indicated that the COMT polymorphism interaction is important in determining the IGF-1 neurotrophic response to sleep deprivation with caffeine intake (NCT03859882).</p>","PeriodicalId":18030,"journal":{"name":"Lifestyle Genomics","volume":" ","pages":"113-123"},"PeriodicalIF":2.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9583142","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}
Pub Date : 2023-01-01Epub Date: 2023-07-20DOI: 10.1159/000531350
Laurence D Parnell, Kira S McCaffrey, Athena W Brooks, Caren E Smith, Chao-Qiang Lai, Jacob J Christensen, Christopher D Wiley, Jose M Ordovas
Introduction: Rate-limiting enzymes (RLEs) are innate slow points in metabolic pathways, and many function in bio-processes related to nutrient sensing. Many RLEs carry causal mutations relevant to inherited metabolic disorders. Because the activity of RLEs in cardiovascular health is poorly characterized, our objective was to assess their involvement in cardiometabolic health and disease and where altered biophysical and biochemical functions can promote disease.
Methods: A dataset of 380 human RLEs was compared to protein and gene datasets for factors likely to contribute to cardiometabolic disease, including proteins showing significant age-related altered expression in blood and genetic loci with variants that associate with common cardiometabolic phenotypes. The biochemical reactions catalyzed by RLEs were evaluated for metabolites enriched in RLE subsets associating with various cardiometabolic phenotypes. Most significance tests were based on Z-score enrichment converted to p values with a normal distribution function.
Results: Of 380 RLEs analyzed, 112 function in mitochondria, and 53 are assigned to inherited metabolic disorders. There was a depletion of RLE proteins known as aging biomarkers. At the gene level, RLEs were assessed for common genetic variants that associated with important cardiometabolic traits of LDL-cholesterol or any of the five outcomes pertinent to metabolic syndrome. This revealed several RLEs with links to cardiometabolic traits, from a minimum of 26 for HDL-cholesterol to a maximum of 45 for plasma glucose. Analysis of these GWAS-linked RLEs for enrichment of the molecular constituents of the catalyzed reactions disclosed a number of significant phenotype-metabolite links. These included blood pressure with acetate (p = 2.2 × 10-4) and NADP+ (p = 0.0091), plasma HDL-cholesterol and triglyceride with diacylglycerol (p = 2.6 × 10-5, 6.4 × 10-5, respectively) and diolein (p = 2.2 × 10-6, 5.9 × 10-6), and waist circumference with d-glucosamine-6-phosphate (p = 1.8 × 10-4).
Conclusion: In the context of cardiometabolic health, aging, and disease, these results highlight key diet-derived metabolites that are central to specific rate-limited processes that are linked to cardiometabolic health. These metabolites include acetate and diacylglycerol, pertinent to blood pressure and triglycerides, respectively, as well as diacylglycerol and HDL-cholesterol.
{"title":"Rate-Limiting Enzymes in Cardiometabolic Health and Aging in Humans.","authors":"Laurence D Parnell, Kira S McCaffrey, Athena W Brooks, Caren E Smith, Chao-Qiang Lai, Jacob J Christensen, Christopher D Wiley, Jose M Ordovas","doi":"10.1159/000531350","DOIUrl":"10.1159/000531350","url":null,"abstract":"<p><strong>Introduction: </strong>Rate-limiting enzymes (RLEs) are innate slow points in metabolic pathways, and many function in bio-processes related to nutrient sensing. Many RLEs carry causal mutations relevant to inherited metabolic disorders. Because the activity of RLEs in cardiovascular health is poorly characterized, our objective was to assess their involvement in cardiometabolic health and disease and where altered biophysical and biochemical functions can promote disease.</p><p><strong>Methods: </strong>A dataset of 380 human RLEs was compared to protein and gene datasets for factors likely to contribute to cardiometabolic disease, including proteins showing significant age-related altered expression in blood and genetic loci with variants that associate with common cardiometabolic phenotypes. The biochemical reactions catalyzed by RLEs were evaluated for metabolites enriched in RLE subsets associating with various cardiometabolic phenotypes. Most significance tests were based on Z-score enrichment converted to p values with a normal distribution function.</p><p><strong>Results: </strong>Of 380 RLEs analyzed, 112 function in mitochondria, and 53 are assigned to inherited metabolic disorders. There was a depletion of RLE proteins known as aging biomarkers. At the gene level, RLEs were assessed for common genetic variants that associated with important cardiometabolic traits of LDL-cholesterol or any of the five outcomes pertinent to metabolic syndrome. This revealed several RLEs with links to cardiometabolic traits, from a minimum of 26 for HDL-cholesterol to a maximum of 45 for plasma glucose. Analysis of these GWAS-linked RLEs for enrichment of the molecular constituents of the catalyzed reactions disclosed a number of significant phenotype-metabolite links. These included blood pressure with acetate (p = 2.2 × 10-4) and NADP+ (p = 0.0091), plasma HDL-cholesterol and triglyceride with diacylglycerol (p = 2.6 × 10-5, 6.4 × 10-5, respectively) and diolein (p = 2.2 × 10-6, 5.9 × 10-6), and waist circumference with <sc>d</sc>-glucosamine-6-phosphate (p = 1.8 × 10-4).</p><p><strong>Conclusion: </strong>In the context of cardiometabolic health, aging, and disease, these results highlight key diet-derived metabolites that are central to specific rate-limited processes that are linked to cardiometabolic health. These metabolites include acetate and diacylglycerol, pertinent to blood pressure and triglycerides, respectively, as well as diacylglycerol and HDL-cholesterol.</p>","PeriodicalId":18030,"journal":{"name":"Lifestyle Genomics","volume":" ","pages":"124-138"},"PeriodicalIF":2.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10222156","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}
Pub Date : 2023-01-01Epub Date: 2022-11-14DOI: 10.1159/000528011
Morgan Fleming, Fina Nelson, Iain Wallace, Christopher H Eskiw
Background: Our daily intake of food provides nutrients for the maintenance of health, growth, and development. The field of nutrigenomics aims to link dietary intake/nutrients to changes in epigenetic status and gene expression.
Summary: Although the relationship between our diet and our genes in under intense investigation, there is still a significant aspect of our genome that has received little attention with regard to this. In the past 15 years, the importance of genome organization has become increasingly evident, with research identifying small-scale local changes to large segments of the genome dynamically repositioning within the nucleus in response to/or mediating change in gene expression. The discovery of these dynamic processes and organization maybe as significant as dynamic plate tectonics is to geology, there is little information tying genome organization to specific nutrients or dietary intake.
Key messages: Here, we detail key principles of genome organization and structure, with emphasis on genome folding and organization, and link how these contribute to our future understand of nutrigenomics.
{"title":"Genome Tectonics: Linking Dynamic Genome Organization with Cellular Nutrients.","authors":"Morgan Fleming, Fina Nelson, Iain Wallace, Christopher H Eskiw","doi":"10.1159/000528011","DOIUrl":"10.1159/000528011","url":null,"abstract":"<p><strong>Background: </strong>Our daily intake of food provides nutrients for the maintenance of health, growth, and development. The field of nutrigenomics aims to link dietary intake/nutrients to changes in epigenetic status and gene expression.</p><p><strong>Summary: </strong>Although the relationship between our diet and our genes in under intense investigation, there is still a significant aspect of our genome that has received little attention with regard to this. In the past 15 years, the importance of genome organization has become increasingly evident, with research identifying small-scale local changes to large segments of the genome dynamically repositioning within the nucleus in response to/or mediating change in gene expression. The discovery of these dynamic processes and organization maybe as significant as dynamic plate tectonics is to geology, there is little information tying genome organization to specific nutrients or dietary intake.</p><p><strong>Key messages: </strong>Here, we detail key principles of genome organization and structure, with emphasis on genome folding and organization, and link how these contribute to our future understand of nutrigenomics.</p>","PeriodicalId":18030,"journal":{"name":"Lifestyle Genomics","volume":" ","pages":"21-34"},"PeriodicalIF":2.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40516555","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}