Lei Wang, Na Qin, Liuliu Shi, Rujuan Liu, Ting Zhu
Scope: The intestinal flora is involved in the maintenance of human health and the development of diseases, and is closely related to the brain. As an essential amino acid, tryptophan (TRP) participates in a variety of physiological functions in the body and affects the growth and health of the human body. TRP catabolites produced by the gut microbiota are important signaling molecules for microbial communities and host-microbe interactions, and play an important role in maintaining health and disease pathogenesis.
Methods and results: The review first demonstrates the evidence of TRP metabolism in stroke and the relationship between gut microbiota and TRP metabolism. Furthermore, the review reveals that food homologous plants (FHP) bioactive compounds have been shown to regulate various metabolic pathways of the gut microbiota, including the biosynthesis of valine, leucine, isoleucine, and vitamin B6 metabolism. The most notable metabolic alteration is in TRP metabolism.
Conclusion: The interaction between gut microbiota and TRP metabolism offers a plausible explanation for the notable bioactivities of FHP in the treatment of ischemic stroke (IS). This review enhances the comprehension of the underlying mechanisms associated with the bioactivity of FHP on IS.
{"title":"Gut Microbiota and Tryptophan Metabolism in Pathogenesis of Ischemic Stroke: A Potential Role for Food Homologous Plants.","authors":"Lei Wang, Na Qin, Liuliu Shi, Rujuan Liu, Ting Zhu","doi":"10.1002/mnfr.202400639","DOIUrl":"https://doi.org/10.1002/mnfr.202400639","url":null,"abstract":"<p><strong>Scope: </strong>The intestinal flora is involved in the maintenance of human health and the development of diseases, and is closely related to the brain. As an essential amino acid, tryptophan (TRP) participates in a variety of physiological functions in the body and affects the growth and health of the human body. TRP catabolites produced by the gut microbiota are important signaling molecules for microbial communities and host-microbe interactions, and play an important role in maintaining health and disease pathogenesis.</p><p><strong>Methods and results: </strong>The review first demonstrates the evidence of TRP metabolism in stroke and the relationship between gut microbiota and TRP metabolism. Furthermore, the review reveals that food homologous plants (FHP) bioactive compounds have been shown to regulate various metabolic pathways of the gut microbiota, including the biosynthesis of valine, leucine, isoleucine, and vitamin B6 metabolism. The most notable metabolic alteration is in TRP metabolism.</p><p><strong>Conclusion: </strong>The interaction between gut microbiota and TRP metabolism offers a plausible explanation for the notable bioactivities of FHP in the treatment of ischemic stroke (IS). This review enhances the comprehension of the underlying mechanisms associated with the bioactivity of FHP on IS.</p>","PeriodicalId":212,"journal":{"name":"Molecular Nutrition & Food Research","volume":" ","pages":"e2400639"},"PeriodicalIF":4.5,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sijia Liao, Lisa Börmel, Anke Katharina Müller, Luisa Gottschalk, Nadine Pritsch, Lara Zoé Preisner, Oleksandra Samokhina, Maria Schwarz, Anna P. Kipp, Wiebke Schlörmann, Michael Glei, Martin Schubert, Lisa Schmölz, Maria Wallert, Stefan Lorkowski
ScopeThe α‐tocopherol long‐chain metabolite α‐tocopherol‐13′‐hydroxy‐chromanol (α‐T‐13′‐COOH) is a proposed regulatory intermediate of endogenous vitamin E metabolism. Effects of α‐T‐13′‐COOH on cell viability and adaptive stress response are not well understood. The present study aims to investigate the concentration‐dependent effects of α‐T‐13′‐COOH on cellular redox homeostasis, genotoxicity, and cytotoxicity in murine RAW264.7 macrophages as a model system.Methods and resultsMurine RAW264.7 macrophages are exposed to various dosages of α‐T‐13′‐COOH to determine its regulatory effects on reactive oxygen species (ROS) production, DNA damage, expression of stress‐related markers, and the activity of ROS scavenging enzymes including superoxide dismutases, catalase, and glutathione‐S‐transferases. The impact on cell viability is assessed by analyzing cell proliferation, cell cycle arrest, and cell apoptosis.Conclusionα‐T‐13′‐COOH influences ROS production and induces DNA damage in a dose‐dependent manner. The metabolite modulates the activity of ROS‐scavenging enzymes, with significant changes observed in the activities of antioxidant enzymes. A biphasic response affecting cell viability is noted: sub‐micromolar doses of α‐T‐13′‐COOH promote cell proliferation and enhance DNA synthesis, whereas supraphysiological doses lead to DNA damage and cytotoxicity. It hypothesizes an adaptive stress response, characterized by upregulation of ROS detoxification mechanisms, enhanced cell cycle arrest, and increased apoptosis, indicating a correlation with oxidative stress and subsequent cellular damage.
范围α-生育酚长链代谢产物α-生育酚-13′-羟基色醇(α-T-13′-COOH)是一种拟议的内源性维生素 E 代谢调节中间产物。α-T-13′-COOH对细胞活力和适应性应激反应的影响尚不十分清楚。本研究旨在以小鼠 RAW264.7 巨噬细胞为模型系统,研究 α-T-13′-COOH 对细胞氧化还原平衡、基因毒性和细胞毒性的浓度依赖性影响。7巨噬细胞暴露于不同剂量的α-T-13′-COOH,以确定其对活性氧(ROS)产生、DNA损伤、应激相关标志物的表达以及ROS清除酶(包括超氧化物歧化酶、过氧化氢酶和谷胱甘肽-S-转移酶)活性的调节作用。结论α-T-13′-COOH 以剂量依赖的方式影响 ROS 的产生并诱导 DNA 损伤。这种代谢物会调节 ROS 清除酶的活性,抗氧化酶的活性也会发生显著变化。我们注意到影响细胞活力的双相反应:亚微摩尔剂量的 α-T-13′-COOH 可促进细胞增殖并增强 DNA 合成,而超生理剂量则会导致 DNA 损伤和细胞毒性。该研究假设了一种适应性应激反应,其特点是上调 ROS 解毒机制、加强细胞周期停滞和增加细胞凋亡,这表明与氧化应激和随后的细胞损伤有关。
{"title":"α‐Tocopherol Long‐Chain Metabolite α‐T‐13′‐COOH Exhibits Biphasic Effects on Cell Viability, Induces ROS‐Dependent DNA Damage, and Modulates Redox Status in Murine RAW264.7 Macrophages","authors":"Sijia Liao, Lisa Börmel, Anke Katharina Müller, Luisa Gottschalk, Nadine Pritsch, Lara Zoé Preisner, Oleksandra Samokhina, Maria Schwarz, Anna P. Kipp, Wiebke Schlörmann, Michael Glei, Martin Schubert, Lisa Schmölz, Maria Wallert, Stefan Lorkowski","doi":"10.1002/mnfr.202400455","DOIUrl":"https://doi.org/10.1002/mnfr.202400455","url":null,"abstract":"ScopeThe α‐tocopherol long‐chain metabolite α‐tocopherol‐13′‐hydroxy‐chromanol (α‐T‐13′‐COOH) is a proposed regulatory intermediate of endogenous vitamin E metabolism. Effects of α‐T‐13′‐COOH on cell viability and adaptive stress response are not well understood. The present study aims to investigate the concentration‐dependent effects of α‐T‐13′‐COOH on cellular redox homeostasis, genotoxicity, and cytotoxicity in murine RAW264.7 macrophages as a model system.Methods and resultsMurine RAW264.7 macrophages are exposed to various dosages of α‐T‐13′‐COOH to determine its regulatory effects on reactive oxygen species (ROS) production, DNA damage, expression of stress‐related markers, and the activity of ROS scavenging enzymes including superoxide dismutases, catalase, and glutathione‐S‐transferases. The impact on cell viability is assessed by analyzing cell proliferation, cell cycle arrest, and cell apoptosis.Conclusionα‐T‐13′‐COOH influences ROS production and induces DNA damage in a dose‐dependent manner. The metabolite modulates the activity of ROS‐scavenging enzymes, with significant changes observed in the activities of antioxidant enzymes. A biphasic response affecting cell viability is noted: sub‐micromolar doses of α‐T‐13′‐COOH promote cell proliferation and enhance DNA synthesis, whereas supraphysiological doses lead to DNA damage and cytotoxicity. It hypothesizes an adaptive stress response, characterized by upregulation of ROS detoxification mechanisms, enhanced cell cycle arrest, and increased apoptosis, indicating a correlation with oxidative stress and subsequent cellular damage.","PeriodicalId":212,"journal":{"name":"Molecular Nutrition & Food Research","volume":"166 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This comprehensive review explores the intricate relationship between gut microbiota, diet, and insulin resistance, emphasizing the novel roles of diet-induced microbial changes in influencing metabolic health. It highlights how diet significantly influences gut microbiota composition, with different dietary patterns fostering diverse microbial communities. These diet-induced changes in the microbiome impact human metabolism by affecting inflammation, energy balance, and insulin sensitivity, particularly through microbial metabolites like short-chain fatty acids (SCFAs). Focusing the key mediators like endotoxemia and systemic inflammation, and introduces personalized microbiome-based therapeutic strategies, it also investigates the effects of dietary components—fiber, polyphenols, and lipids—on microbiota and insulin sensitivity, along with the roles of protein intake and amino acid metabolism. The study compares the effects of Western and Mediterranean diets on the microbiota-insulin resistance axis. Therapeutic implications, including probiotics, fecal microbiota transplantation (FMT), and personalized diets, are discussed. Key findings reveal that high-fat diets, especially those rich in saturated fats, contribute to dysbiosis and increased intestinal permeability, while high-fiber diets promote beneficial bacteria and SCFAs. The review underscores the future potential of food and microbiota interventions for preventing or managing insulin resistance.
{"title":"Synergistic Interplay of Diet, Gut Microbiota, and Insulin Resistance: Unraveling the Molecular Nexus","authors":"Rajesh Kanna Gopal, Pitchaipillai Sankar Ganesh, Naji Naseef Pathoor","doi":"10.1002/mnfr.202400677","DOIUrl":"https://doi.org/10.1002/mnfr.202400677","url":null,"abstract":"This comprehensive review explores the intricate relationship between gut microbiota, diet, and insulin resistance, emphasizing the novel roles of diet-induced microbial changes in influencing metabolic health. It highlights how diet significantly influences gut microbiota composition, with different dietary patterns fostering diverse microbial communities. These diet-induced changes in the microbiome impact human metabolism by affecting inflammation, energy balance, and insulin sensitivity, particularly through microbial metabolites like short-chain fatty acids (SCFAs). Focusing the key mediators like endotoxemia and systemic inflammation, and introduces personalized microbiome-based therapeutic strategies, it also investigates the effects of dietary components—fiber, polyphenols, and lipids—on microbiota and insulin sensitivity, along with the roles of protein intake and amino acid metabolism. The study compares the effects of Western and Mediterranean diets on the microbiota-insulin resistance axis. Therapeutic implications, including probiotics, fecal microbiota transplantation (FMT), and personalized diets, are discussed. Key findings reveal that high-fat diets, especially those rich in saturated fats, contribute to dysbiosis and increased intestinal permeability, while high-fiber diets promote beneficial bacteria and SCFAs. The review underscores the future potential of food and microbiota interventions for preventing or managing insulin resistance.","PeriodicalId":212,"journal":{"name":"Molecular Nutrition & Food Research","volume":"12 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ScopeThis study investigates whether vitamin E (VE) deficiency in subjects with obesity could, at least partly, be due to a defect in VE intestinal absorption.Methods and resultsMice follow either a high‐fat (HF) or a control (CTL) diet for 12 weeks. The study evaluates their VE status, the expression of genes encoding proteins involved in lipid and fat‐soluble vitamin intestinal absorption, and VE absorption using a γ‐tocopherol‐rich emulsion. HF mice have a weight (+23.0%) and an adiposity index (AI, +157.0) superior to CTL mice (p < 0.05). α‐Tocopherol concentrations are higher in both plasma (+45.0%) and liver (+116.9%) of HF mice compared to CTL mice (p < 0.05). α‐Tocopherol concentration in the adipose tissue of HF mice is higher than that of CTL mice after correction by the AI (+72.4%, p < 0.05). No difference is found in the expression of genes coding for proteins involved in intestinal lipid metabolism in fasting mice. After force‐feeding, γ‐tocopherol plasma concentration is higher in HF mice compared to CTL mice (+181.5% at 1.5 h after force‐feeding, p < 0.05).ConclusionHF mice display higher status and more efficient absorption of VE than CTL mice. VE absorption is thus likely not impaired in the early stages of obesity.
范围本研究探讨肥胖症患者缺乏维生素 E(VE)是否至少部分是由于 VE 肠道吸收缺陷所致。研究使用富含γ-生育酚的乳液对小鼠的 VE 状态、编码参与脂质和脂溶性维生素肠道吸收的蛋白质的基因表达以及 VE 吸收情况进行了评估。HF 小鼠的体重(+23.0%)和脂肪指数(AI,+157.0)均优于 CTL 小鼠(p < 0.05)。与 CTL 小鼠相比,高频小鼠血浆(+45.0%)和肝脏(+116.9%)中的 α-生育酚浓度更高(p < 0.05)。经 AI 校正后,HF 小鼠脂肪组织中的α-生育酚浓度高于 CTL 小鼠(+72.4%,p <0.05)。空腹小鼠肠道脂质代谢蛋白编码基因的表达没有差异。与 CTL 小鼠相比,强制喂食后,HF 小鼠血浆中的γ-生育酚浓度更高(强制喂食后 1.5 小时时为 +181.5%,p < 0.05)。因此,在肥胖的早期阶段,VE的吸收可能不会受到影响。
{"title":"Overweight Leads to an Increase in Vitamin E Absorption and Status in Mice","authors":"Katherine Alvarado‐Ramos, Ángela Bravo‐Núñez, Donato Vairo, Charlotte Sabran, Jean‐François Landrier, Emmanuelle Reboul","doi":"10.1002/mnfr.202400509","DOIUrl":"https://doi.org/10.1002/mnfr.202400509","url":null,"abstract":"ScopeThis study investigates whether vitamin E (VE) deficiency in subjects with obesity could, at least partly, be due to a defect in VE intestinal absorption.Methods and resultsMice follow either a high‐fat (HF) or a control (CTL) diet for 12 weeks. The study evaluates their VE status, the expression of genes encoding proteins involved in lipid and fat‐soluble vitamin intestinal absorption, and VE absorption using a γ‐tocopherol‐rich emulsion. HF mice have a weight (+23.0%) and an adiposity index (AI, +157.0) superior to CTL mice (<jats:italic>p</jats:italic> < 0.05). α‐Tocopherol concentrations are higher in both plasma (+45.0%) and liver (+116.9%) of HF mice compared to CTL mice (<jats:italic>p</jats:italic> < 0.05). α‐Tocopherol concentration in the adipose tissue of HF mice is higher than that of CTL mice after correction by the AI (+72.4%, <jats:italic>p</jats:italic> < 0.05). No difference is found in the expression of genes coding for proteins involved in intestinal lipid metabolism in fasting mice. After force‐feeding, γ‐tocopherol plasma concentration is higher in HF mice compared to CTL mice (+181.5% at 1.5 h after force‐feeding, <jats:italic>p</jats:italic> < 0.05).ConclusionHF mice display higher status and more efficient absorption of VE than CTL mice. VE absorption is thus likely not impaired in the early stages of obesity.","PeriodicalId":212,"journal":{"name":"Molecular Nutrition & Food Research","volume":"21 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fen Wu, Meilin Wang, Xiaoyue Chen, Dongchen Zhang, Wei Peng, Xinyi Hu, Haoran Xu, WenNa Zhang, Chao Yan, Yongming Lu, Min Sun, Yan Chen, Lei Chen
Scope: Cordyceps cicadae polysaccharides have received attention due to their potential in treating hyperglycemia and enhancing renal function. The beneficial effect of the purified C. cicadae polysaccharides fraction (CCP-1) on the reproductive impairments and spermatogenesis dysfunction of immunocompromised mice is unavailable and is studied herein.
Methods and results: The study establishes a GC-1 spg cell apoptosis model induced by TNF-α+SM-164 (TS) and male mouse reproductive injury model induced by cyclophosphamide (CTX), and then intervened by CCP-1. CCP-1 improves the viability of GC-1 spg cell and inhibits cells apoptosis induced by TS in vitro. CCP-1 enhances sperm quality and spermatogenesis function, as well as ameliorating the histological lesions in the hypothalamus, testicular, and kidney. CCP-1 elevates gonadotropin-releasing hormone (GnRH) level that secreted by the hypothalamus, and increases the levels of follicle stimulating hormone (FSH) and luteizing hormone (LH) in the anterior pituitary stimulated by GnRH, and promotes the secretion of testosterone (T) by testis. Moreover, CCP-1 could protect the reproductive system by activating reproductive regulatory pathway such as SCF/C-kit pathway and inhibiting apoptotic signaling pathway such as Bax/Caspase-3 pathway.
Conclusion: These results manifest that CCP-1 could serve as a natural promising reproductive system protective supplement for ameliorating CTX biotoxicity.
{"title":"Polysaccharides from Cordyceps cicadae Ameliorate Reproductive Impairments in Male Mouse through the Hypothalamic-Pituitary-Testicular Axis.","authors":"Fen Wu, Meilin Wang, Xiaoyue Chen, Dongchen Zhang, Wei Peng, Xinyi Hu, Haoran Xu, WenNa Zhang, Chao Yan, Yongming Lu, Min Sun, Yan Chen, Lei Chen","doi":"10.1002/mnfr.202400446","DOIUrl":"https://doi.org/10.1002/mnfr.202400446","url":null,"abstract":"<p><strong>Scope: </strong>Cordyceps cicadae polysaccharides have received attention due to their potential in treating hyperglycemia and enhancing renal function. The beneficial effect of the purified C. cicadae polysaccharides fraction (CCP-1) on the reproductive impairments and spermatogenesis dysfunction of immunocompromised mice is unavailable and is studied herein.</p><p><strong>Methods and results: </strong>The study establishes a GC-1 spg cell apoptosis model induced by TNF-α+SM-164 (TS) and male mouse reproductive injury model induced by cyclophosphamide (CTX), and then intervened by CCP-1. CCP-1 improves the viability of GC-1 spg cell and inhibits cells apoptosis induced by TS in vitro. CCP-1 enhances sperm quality and spermatogenesis function, as well as ameliorating the histological lesions in the hypothalamus, testicular, and kidney. CCP-1 elevates gonadotropin-releasing hormone (GnRH) level that secreted by the hypothalamus, and increases the levels of follicle stimulating hormone (FSH) and luteizing hormone (LH) in the anterior pituitary stimulated by GnRH, and promotes the secretion of testosterone (T) by testis. Moreover, CCP-1 could protect the reproductive system by activating reproductive regulatory pathway such as SCF/C-kit pathway and inhibiting apoptotic signaling pathway such as Bax/Caspase-3 pathway.</p><p><strong>Conclusion: </strong>These results manifest that CCP-1 could serve as a natural promising reproductive system protective supplement for ameliorating CTX biotoxicity.</p>","PeriodicalId":212,"journal":{"name":"Molecular Nutrition & Food Research","volume":" ","pages":"e2400446"},"PeriodicalIF":4.5,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142613285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}