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Extraction, Chemical Composition, Antiradical Capacity, and Photoprotective Effect of Inonotus obliquus from Eastern Canada 加拿大东部斜叶牛蒡的提取、化学成分、抗自由基能力及光防护作用
Pub Date : 2023-08-02 DOI: 10.3390/nutraceuticals3030029
Yolande A. Wontcheu Fotso, S. Ghazi, Anissa Belkaid, Jason Soucy, L. Tremblay, S. Lamarre, O. Clarisse, M. Touaibia
To promote the rational use of Inonotus obliquus (chaga) from Eastern Canada, a mushroom consumed in infusion as a health drink, the extraction of its constituents was investigated. The extraction was carried out with water or ethanol at room temperature or by heating as well as following exposure to ultrasound. The extracts of the four seasons obtained with the four extraction methods were compared for their contents in carbon, nitrogen (N), sulfur (S), potassium (K), betulin, betulinic acid, potassium, flavonoids, and polyphenols. The antiradical effect as well as the photoprotective effects of all extracts were also investigated. The results show that there is no difference between the quantities extracted from the extracts of the 4 seasons. The results show a significant difference between the mass of the extracts obtained with water and ethanol. Betulinic acid was found to be more abundant in the extracts obtained with water while betulin was more abundant in the extracts obtained with ethanol. The mushroom and the extracts had high C contents, but low N and S contents, typical of protein-poor and carbohydrate-rich materials. Extracts were particularly rich in potassium, five times more than bananas. Heating favors the extraction of polyphenols and flavonoids. The aqueous extracts of chaga harvested in winter had the highest antiradical capacity. With a Sun Protection Factor (SPF) higher than 30 in the UVB wavelength, chaga extracts might be used as sunscreen. Extracts obtained with water had the highest SPF in general. The analysis of this mushroom further highlights this local product that deserves more attention for its potential benefits as a functional food/nutraceutical product. In addition to its nutritional values, this mushroom can also be used for its cosmetic qualities as it can be used as a sunscreen.
为了促进加拿大东部产的斜孔菌(Inonotus oblixus,chaga)的合理使用,对其成分的提取进行了研究。提取在室温下用水或乙醇进行,或者通过加热以及在暴露于超声波之后进行。比较了四种提取方法提取的四季提取物中碳、氮、硫、钾、桦木素、桦木酸、钾、黄酮和多酚的含量。还研究了所有提取物的抗自由基作用和光保护作用。结果表明,从4个季节的提取物中提取的量之间没有差异。结果显示用水和乙醇获得的提取物的质量之间存在显著差异。发现在用水获得的提取物中桦木酸更丰富,而在用乙醇获得的提取物中桦木蛋白更丰富。蘑菇及其提取物具有较高的C含量,但N和S含量较低,是典型的蛋白质贫乏和碳水化合物丰富的材料。提取物的钾含量特别丰富,是香蕉的五倍。加热有利于多酚和类黄酮的提取。在冬季收获的木瓜水提取物具有最高的抗自由基能力。在UVB波长下,防晒系数(SPF)高于30,夏加提取物可以用作防晒霜。一般来说,用水提取的提取物具有最高的SPF。对这种蘑菇的分析进一步突出了这种当地产品,它作为一种功能性食品/营养品的潜在益处值得更多关注。除了营养价值外,这种蘑菇还可以用作防晒霜,具有美容功效。
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引用次数: 0
The Marine Factor 3,5-Dihydroxy-4-methoxybenzyl Alcohol Represses Adipogenesis in Mouse 3T3-L1 Adipocytes In Vitro: Regulating Diverse Signaling Pathways 海洋因子3,5-二羟基-4-甲氧基苄基醇体外抑制小鼠3T3-L1脂肪细胞的脂肪形成:调节多种信号通路
Pub Date : 2023-08-01 DOI: 10.3390/nutraceuticals3030028
Masayoshi Yamaguchi, Kenji Yoshiike, Hideaki Watanabe, Mitsugu Watanabe
The augmentation of adipocytes in the adipose tissues brings disordered pathophysiological conditions, including type 2 diabetes, hyperlipidemia, hypertension, cardiovascular disease, and cancer. The phenolic antioxidant 3,5-dihydroxy-4-methoxybenzyl alcohol (DHMBA) prevents oxidative stress as radical scavenging in cells. However, the role of the disorder as a pharmacologic factor has been poorly understood. This study elucidates the regulatory effects of DHMBA on adipogenesis in mouse 3T3-L1 adipocytes in vitro. The 3T3-L1 preadipocytes were cultured in DMEM containing 10% calf fetal serum in the presence of DHMBA. Culturing with DHMBA repressed the growth of 3T3-L1 preadipocytes cultured in a medium without differentiation factors. Interestingly, when 3T3-L1 preadipocytes were cultured in a medium including differentiation factors containing insulin, DHMBA did not affect the number of cells with the differentiation process of adipogenesis. Culturing with DHMBA (1, 10, or 100 μM) inhibited lipid accumulation in adipocytes and repressed adipogenesis in 3T3-L1 cells. The potent inhibitory effects of DHMBA on adipogenesis were seen at the later stage of culture. Adipogenesis was inhibited by the presence of wortmannin, PD98059, or Bay 11-7082, which are inhibitors of pathways related to insulin signaling pathway. Notably, the suppressive effects of DHMBA on adipogenesis were expressed by the presence of these inhibitors. DHMBA treatment declined the levels of PPARy and C/EBPα related to preadipocyte differentiation and PI3 kinase 100α, Akt, MAPK, phosphor-MAPK, and mTOR implicated in the insulin signaling pathway, leading to adipogenesis promotion. Thus, DHMBA may inhibit adipogenesis via regulating diverse signaling pathways, providing a new strategy for the therapy of obesity.
脂肪组织中脂肪细胞的增加会导致紊乱的病理生理状况,包括2型糖尿病、高脂血症、高血压、心血管疾病和癌症。酚类抗氧化剂3,5-二羟基-4-甲氧基苄基醇(DHMBA)通过清除细胞中的自由基来防止氧化应激。然而,这种疾病作为一种药理学因素的作用却鲜为人知。本研究阐明了DHMBA对小鼠3T3-L1脂肪细胞体外脂肪生成的调控作用。3T3-L1前脂肪细胞在含有10%小牛胎血清的DMEM中培养,DHMBA存在。用DHMBA培养可抑制无分化因子培养基中培养的3T3-L1前脂肪细胞的生长。有趣的是,当3T3-L1前脂肪细胞在含有胰岛素的分化因子的培养基中培养时,DHMBA不影响脂肪形成分化过程中的细胞数量。用DHMBA(1、10或100 μM)培养可抑制脂肪细胞中的脂质积累,并抑制3T3-L1细胞中的脂肪生成。在培养后期,DHMBA对脂肪形成有明显的抑制作用。wortmannin、PD98059或Bay 11-7082的存在抑制了脂肪的形成,它们是胰岛素信号通路相关通路的抑制剂。值得注意的是,DHMBA对脂肪形成的抑制作用是通过这些抑制剂的存在来表达的。DHMBA处理降低了与前脂肪细胞分化相关的PPARy和C/EBPα以及胰岛素信号通路相关的PI3激酶100α、Akt、MAPK、磷酸化MAPK和mTOR的水平,从而促进脂肪形成。因此,DHMBA可能通过调节多种信号通路抑制脂肪生成,为肥胖的治疗提供了新的策略。
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引用次数: 0
Multiple Biological Mechanisms for the Potential Influence of Phytochemicals on Physical Activity Performance: A Narrative Review 植物化学物质对身体活动能力潜在影响的多种生物学机制:叙述性综述
Pub Date : 2023-07-11 DOI: 10.3390/nutraceuticals3030027
Robert Thomas, Madeleine Williams, J. Aldous, Kevin Wyld
Natural phytochemicals (PCs) are responsible for the taste, colour, and aroma of many edible plants. Cohort studies have linked higher intake to a reduced risk of chronic degenerative diseases and premature ageing. The ability of foods rich in PCs, such as phytanthocyanins, apigenin, flavonols, flavonoids, bioflavonoids, gallic acid, ellagic acid, quercetin, and ellagitannins, to support physical activity has also been highlighted in a number of published pre-clinical and prospective clinical studies. This literature mostly emphasises the ability of PCs to enhance the adaptive upregulation of antioxidant enzymes (AEs), which reduces exercise-associated oxidative stress, but there are several other mechanisms of benefit that this narrative review addresses. These mechanisms include; protecting joints and tendons from physical trauma during exercise; mitigating delayed-onset muscle symptoms (DOMS) and muscle damage; improving muscle and tissue oxygenation during training; cultivating a healthy gut microbiome hence lowering excess inflammation; cutting the incidence of upper respiratory tract viral infections which disrupt training programmes; and helping to restore circadian rhythm which improves sleep recovery and reduces daytime fatigue, which in turn elevates mood and motivation to train.
天然植物化学物质(PC)负责许多可食用植物的味道、颜色和香气。队列研究表明,摄入更多与降低慢性退行性疾病和过早衰老的风险有关。许多已发表的临床前和前瞻性临床研究也强调了富含PCs的食物,如植物花青素、芹菜素、黄酮醇、类黄酮、生物类黄酮、没食子酸、鞣花酸、槲皮素和鞣花素,支持身体活动的能力。这篇文献主要强调PC增强抗氧化酶(AE)适应性上调的能力,这可以减少运动相关的氧化应激,但这篇叙述性综述还涉及其他几种有益机制。这些机制包括:;在运动过程中保护关节和肌腱免受身体创伤;减轻延迟发作的肌肉症状(DOMS)和肌肉损伤;在训练中改善肌肉和组织氧合;培养健康的肠道微生物组,从而降低过度炎症;减少扰乱训练计划的上呼吸道病毒感染的发生率;帮助恢复昼夜节律,改善睡眠恢复,减少白天疲劳,进而提升情绪和训练动机。
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引用次数: 0
Super Fruit Amla (Emblica officinalis, Gaertn) in Diabetes Management and Ensuing Complications: A Concise Review 超级水果Amla (Emblica officinalis, Gaertn)在糖尿病管理和随后的并发症:简要回顾
Pub Date : 2023-07-07 DOI: 10.3390/nutraceuticals3030026
M. Majeed, N. Narayanan, Lakshmi A Mundkur, P. Prakasan, K. Nagabhushanam
Type 2 diabetes mellitus (T2DM) is a chronic metabolic disease showing an exponential increase in its prevalence all over the world. High blood glucose level is one of the main clinical signs of the disease. Although several classes of drugs are available for treatment, their prolonged use and adverse effects behoove the use of alternative medicine. Plant-derived natural products have multifaceted beneficial roles in human pathophysiology. Plant metabolites like tannins, organic acids, polyphenols, terpenes, and flavonoids show multiple mechanisms of action against diabetes. The fruits of Emblica officinalis (EOF), also known as Indian gooseberry (amla), contain several phytochemicals, potentially having anti-diabetic activity. Hydrolyzable tannins are the major bioactive components of the amla fruit, the most abundant hydrolyzable tannin being β-glucogallin. The present review summarizes the mechanism of action and clinical evidence for the beneficial effects of EOF on T2DM and its associated complications.
2型糖尿病(T2DM)是一种慢性代谢性疾病,在世界范围内呈指数增长趋势。高血糖是本病的主要临床症状之一。虽然有几类药物可用于治疗,但它们的长期使用和不良反应应该使用替代药物。植物源性天然产物在人体病理生理中具有多方面的有益作用。植物代谢产物如单宁、有机酸、多酚、萜烯和类黄酮显示出对抗糖尿病的多种机制。Emblica officinalis (EOF)的果实,也被称为印度醋栗(amla),含有几种植物化学物质,可能具有抗糖尿病活性。水解单宁是黑木果实的主要生物活性成分,其中最丰富的水解单宁是β-葡高糖苷。现就EOF治疗T2DM及其相关并发症的作用机制和临床证据进行综述。
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引用次数: 1
Iota-Carrageenan Inhibits Replication of the SARS-CoV-2 Variants of Concern Omicron BA.1, BA.2 and BA.5 角叉菜胶抑制关注组号BA.1、BA.2和BA.5 SARS-CoV-2变异体的复制
Pub Date : 2023-07-05 DOI: 10.3390/nutraceuticals3030025
Christian Setz, M. Große, Maria Fröba, Janina Auth, P. Rauch, A. Herrmann, A. Cordsmeier, A. Ensser, M. Schindler, Martina Morokutti-Kurz, Philipp Graf, Benedikt Engel, Eva Prieschl-Grassauer, A. Grassauer, U. Schubert
Even with its endemic transition, the COVID-19 pandemic remains a public health threat, particularly in the light of emerging variants of concern (VoCs) and the need for pandemic preparedness in the future. In November 2021, the SARS-CoV-2 VoC Omicron emerged and its subvariants BA.1, BA.2 and BA.5 became predominant. Although the protease inhibitor Paxlovid® and the polymerase inhibitors Molnupiravir and Remdesivir were approved as specific antiviral treatment options for COVID-19 patients in the early stages after infection, effective prophylactically acting substances without adverse effects are not available yet. In a recent study, we demonstrated that iota-carrageenan, a sulfated polysaccharide extracted from red seaweed, efficiently inhibits the replication of the SARS-CoV-2 Wuhan Type and the VoCs Alpha, Beta, Gamma and Delta. Now, we extended this study by investigating the antiviral effects of iota-, lambda- and kappa-carrageenans on the VoC Omicron subvariants BA.1, BA.2 and BA.5. Using a VoC Omicron BA.1 spike pseudotyped murine leukemia virus (BA.1 MLVOMVLP) as well as patient-derived SARS-CoV-2 Omicron isolates BA.1, BA.2 and BA.5 (SARS-CoV-2OM BA.1, SARS-CoV-2OM BA.2 and SARS-CoV-2OM BA.5), we demonstrate that iota-carrageenan exhibits similar antiviral activity against all analyzed Omicron subvariants. As with other VoCs shown before, the biologically inert iota-carrageenan was more efficient than kappa- and lambda-carrageenan. Altogether, these results confirm that, independent of the current and potential future variants, the physical barrier provided by iota-carrageenan might be applicable for prophylaxis and early treatment of SARS-CoV-2 infections.
即使已转变为流行病,COVID-19大流行仍然是一种公共卫生威胁,特别是考虑到新出现的关注变体(voc)以及未来需要进行大流行防范。2021年11月,SARS-CoV-2挥发性有机基因出现,其亚型BA.1、BA.2和BA.5占主导地位。尽管蛋白酶抑制剂Paxlovid®和聚合酶抑制剂Molnupiravir和Remdesivir已被批准作为COVID-19感染后早期患者的特异性抗病毒治疗选择,但目前还没有有效的无不良反应的预防作用物质。在最近的一项研究中,我们证明了从红海藻中提取的硫酸化多糖iota-carrageenan能有效抑制SARS-CoV-2武汉型和挥发性有机化合物α、β、γ和δ的复制。现在,我们扩展了这项研究,研究了iota-, lambda-和kappa-卡拉胶对VoC Omicron亚变体BA.1, BA.2和BA.5的抗病毒作用。利用VoC Omicron BA.1刺突假型小鼠白血病病毒(BA.1 MLVOMVLP)和患者源性SARS-CoV-2 Omicron分离物BA.1、BA.2和BA.5 (SARS-CoV-2OM BA.1、SARS-CoV-2OM BA.2和SARS-CoV-2OM BA.5),我们证明了iota- carragenan对所有分析的Omicron亚变体具有相似的抗病毒活性。与之前展示的其他挥发性有机化合物一样,生物惰性的ioa -卡拉胶比kapa -和lambda-卡拉胶更有效。总之,这些结果证实,独立于当前和潜在的未来变体,约塔-卡拉胶提供的物理屏障可能适用于SARS-CoV-2感染的预防和早期治疗。
{"title":"Iota-Carrageenan Inhibits Replication of the SARS-CoV-2 Variants of Concern Omicron BA.1, BA.2 and BA.5","authors":"Christian Setz, M. Große, Maria Fröba, Janina Auth, P. Rauch, A. Herrmann, A. Cordsmeier, A. Ensser, M. Schindler, Martina Morokutti-Kurz, Philipp Graf, Benedikt Engel, Eva Prieschl-Grassauer, A. Grassauer, U. Schubert","doi":"10.3390/nutraceuticals3030025","DOIUrl":"https://doi.org/10.3390/nutraceuticals3030025","url":null,"abstract":"Even with its endemic transition, the COVID-19 pandemic remains a public health threat, particularly in the light of emerging variants of concern (VoCs) and the need for pandemic preparedness in the future. In November 2021, the SARS-CoV-2 VoC Omicron emerged and its subvariants BA.1, BA.2 and BA.5 became predominant. Although the protease inhibitor Paxlovid® and the polymerase inhibitors Molnupiravir and Remdesivir were approved as specific antiviral treatment options for COVID-19 patients in the early stages after infection, effective prophylactically acting substances without adverse effects are not available yet. In a recent study, we demonstrated that iota-carrageenan, a sulfated polysaccharide extracted from red seaweed, efficiently inhibits the replication of the SARS-CoV-2 Wuhan Type and the VoCs Alpha, Beta, Gamma and Delta. Now, we extended this study by investigating the antiviral effects of iota-, lambda- and kappa-carrageenans on the VoC Omicron subvariants BA.1, BA.2 and BA.5. Using a VoC Omicron BA.1 spike pseudotyped murine leukemia virus (BA.1 MLVOMVLP) as well as patient-derived SARS-CoV-2 Omicron isolates BA.1, BA.2 and BA.5 (SARS-CoV-2OM BA.1, SARS-CoV-2OM BA.2 and SARS-CoV-2OM BA.5), we demonstrate that iota-carrageenan exhibits similar antiviral activity against all analyzed Omicron subvariants. As with other VoCs shown before, the biologically inert iota-carrageenan was more efficient than kappa- and lambda-carrageenan. Altogether, these results confirm that, independent of the current and potential future variants, the physical barrier provided by iota-carrageenan might be applicable for prophylaxis and early treatment of SARS-CoV-2 infections.","PeriodicalId":93800,"journal":{"name":"Nutraceuticals","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48191048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring the Efficacy of Extracts for Cosmetic Creams: In Vivo and In Vitro Assessments 探索化妆品面霜提取物的功效:体内和体外评估
Pub Date : 2023-06-30 DOI: 10.3390/nutraceuticals3030024
Cristina Monica Papa, A. Suciu, I. Dopcea, Nicoleta Ene, S. Singh, E. Vamanu
Plants with therapeutic potential are a rich resource for the inhabitants of a country, with Romania among them, having a diverse flora not only from plants but also from fungi. New trends in biopharmaceuticals are also addressed in studies related to topical administration, representing a great advantage; research has determined biological activities in vivo and in vitro. This study aimed to present the main active compounds from extracts of Lactarius piperatus, Centaurea cyanus, and Ribes rubrum. In vitro (DPPH scavenging activity and reducing power) and in vivo activities were determined. A survey of hydrating cosmetic products and the completion of a patch test (in vivo test) under dermatological control were realized to confirm the skin compatibility of the product in a panel of human subjects after a single application. The cosmetic product did not induce allergic reactions, erythema, irritation, or itching. This study showed that the extracts incorporated in the formulation of the face cream had a nutricosmetic effect. The research demonstrated a result of increasing skin elasticity and an anti-inflammatory effect following direct application to the skin of volunteers. The product offered in vitro/in vivo protection against the action of free radicals; it was effective in reducing the side effects of exposure to the action of blue light.
对于一个国家的居民来说,具有治疗潜力的植物是一种丰富的资源,罗马尼亚就是其中之一,它不仅拥有植物的多样性,还拥有真菌的多样性。与局部给药相关的研究也涉及生物制药的新趋势,这是一个巨大的优势;研究已经确定了体内外的生物活性。本研究旨在从乳菇、矢车菊和红肋骨提取物中提取主要活性化合物。测定了体外(DPPH清除活性和还原力)和体内活性。对保湿化妆品进行了调查,并在皮肤科控制下完成了贴片测试(体内测试),以确认该产品在一组人类受试者中单次使用后的皮肤兼容性。该化妆品没有引起过敏反应、红斑、刺激或瘙痒。本研究表明,该面霜配方中的提取物具有营养美容作用。研究表明,直接应用于志愿者皮肤后,可以增加皮肤弹性并具有抗炎作用。该产品在体外/体内提供抗自由基作用的保护;它在减少暴露于蓝光作用的副作用方面是有效的。
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引用次数: 0
Designing Vitamin D3 Formulations: An In Vitro Investigation Using a Novel Micellar Delivery System 设计维生素D3配方:使用新型胶束递送系统的体外研究
Pub Date : 2023-06-20 DOI: 10.3390/nutraceuticals3020023
Min Du, Chuck Chang, Xin Zhang, Yiming Zhang, Melissa J. Radford, R. Gahler, Y. Kuo, S. Wood, J. Solnier
Vitamin D is an essential nutrient with important immunomodulatory properties. As a fat-soluble compound, Vitamin D (and its D3 form) is immiscible with water, which presents challenges to absorption. In an in vitro setting, the current study characterizes novel micellar formulations of Vitamin D3 designed to improve absorption. Techniques used to evaluate and compare the micellar formulations against a non-micellar formula include the following: cryo-SEM to determine morphology; laser diffraction to determine particle size and distribution; zeta potential to determine stability of the particles; solubility assays to determine solubility in water and gastrointestinal media; and Caco-2 cell monolayers to determine intestinal permeability. Results show advantageous features (particle size range in the low micrometres with an average zeta potential of −51.56 ± 2.76 mV), as well as significant improvements in intestinal permeability, in one optimized micellar formula (LipoMicel®). When introduced to Caco-2 cells, LipoMicel’s permeability was significantly better than the control (p < 0.01; ANOVA). Findings of this study suggest that the novel micellar form of Vitamin D3 (LipoMicel) has the potential to promote absorption of Vitamin D3. Thus, it can serve as a promising candidate for follow-up in vivo studies in humans.
维生素D是一种具有重要免疫调节特性的必需营养素。作为一种脂溶性化合物,维生素D(及其D3形式)与水不混溶,这对吸收提出了挑战。在体外环境中,目前的研究表征了旨在提高吸收的维生素D3的新型胶束制剂。用于评估和比较胶束配方与非胶束配方的技术包括:冷冻SEM以确定形态;激光衍射以确定颗粒尺寸和分布;ζ电位测定颗粒的稳定性;溶解度测定以确定在水和胃肠道介质中的溶解度;和Caco-2细胞单层来确定肠道通透性。结果显示,在一种优化的胶束配方(LipoMicel®)中,具有有利的特性(颗粒尺寸在低微米范围内,平均ζ电位为−51.56±2.76 mV),并显著改善了肠道通透性。当引入Caco-2细胞时,LipoMicel的渗透性显著优于对照组(p<0.01;ANOVA)。本研究结果表明,维生素D3的新型胶束形式(LipoMicel)具有促进维生素D3吸收的潜力。因此,它可以作为一种很有前途的候选药物,用于人类的后续体内研究。
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引用次数: 2
The Effect of Caffeine Supplementation on Resistance and Jumping Exercise: The Interaction with CYP1A2 and ADORA2A Genotypes 补充咖啡因对抵抗力和跳跃运动的影响:与CYP1A2和ADORA2A基因型的相互作用
Pub Date : 2023-06-19 DOI: 10.3390/nutraceuticals3020022
Emilia E. Zawieja, A. Chmurzyńska, J. Anioła, B. Zawieja, J. Cholewa
Purpose: To evaluate the association of CYP1A2 and ADORA2A gene polymorphisms, paraxanthine concentrations, and habitual caffeine (CAF) intake with respect to muscular performance after acute CAF supplementation. Methods: A total of 27 resistance-trained males participating in the study ingested either 5 mg/kg of CAF or PL 45 min before a battery of exercise tests in a cross-over design. DNA was tested for the rs5751876 and rs762551 polymorphisms. Results: CAF improved performance in jumping average power, average velocity, max velocity, bench press in the first set, and peak power in the second set. For the CYP1A2 genotype, C allele carriers improved in jumping average velocity (CAF: 1.77 ± 0.14 m/s, PL: 1.71 ± 0.16 m/s, p < 0.001), and AA homozygotes improved set 1 bench press (CAF: 9.7 ± 1.7 reps, PL: 8.9 ± 1.8 reps, p = 0.046). For the ADORA2A genotype, CC (CAF: 1.70 ± 0.20 m/s, PL: 1.67 ± 0.19 m/s, p = 0.005) and CT (CAF: 1.79 ± 0.09 m/s, PL: 1.74 ± 0.11 m/s, p < 0.001) improved in jumping average velocity and CT also improved in bench press set 2 peak power (CAF: 363 ± 76 W, PL: 323 ± 59 W, p = 0.021). For CAF habituation, CAF improved jumping average power (p = 0.007) and jumping average velocity (p < 0.001) in high users but not in low users (p > 0.05). Conclusions: CAF may improve jumping and bench press performance, irrespective of genotypes, but the associations with the genotypes in CYP1A2 and ADORA2A genes, as well as habitual CAF intake, are not clear and require further investigation.
目的:评估CYP1A2和ADORA2A基因多态性、对黄嘌呤浓度和习惯性咖啡因(CAF)摄入与急性补充CAF后肌肉性能的关系。方法:共有27名接受过阻力训练的男性参与了这项研究,在交叉设计的一组运动测试前45分钟摄入了5 mg/kg的CAF或PL。DNA检测rs5751876和rs762551多态性。结果:CAF在第一组的平均跳跃力、平均速度、最大速度、卧推和第二组的峰值跳跃力方面均有所提高。对于CYP1A2基因型,C等位基因携带者的跳跃平均速度有所改善(CAF:1.77±0.14 m/s,PL:1.71±0.16 m/s,p<0.001),AA纯合子改善了第1组卧推(CAF:9.7±1.7次,PL:8.9±1.8次,p=0.046)。对于ADORA2A基因型,CC(CAF:1.70±0.20 m/s,PL:1.67±0.19 m/s,p=0.005)和CT(CAF+1.79±0.09 m/s,PL+1.74±0.11 m/s,p<0.001)的跳跃平均速度有所改善,CT也改善了卧推组2的峰值功率(CAF:363±76 W,PL:323±59 W,p=0.021),CAF改善了高使用者的跳跃平均力量(p=0.007)和跳跃平均速度(p<0.001),但低使用者没有(p>0.05)。结论:无论基因型如何,CAF都可以改善跳跃和卧推性能,但与CYP1A2和ADORA2A基因型以及习惯性CAF摄入的关系尚不清楚,需要进一步研究。
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引用次数: 0
Twelve Weeks of Oral L-Serine Supplementation Improves Glucose Tolerance, Reduces Visceral Fat Pads, and Reverses the mRNA Overexpression of Renal Injury Markers KIM-1, IL-6, and TNF-α in a Mouse Model of Obesity 在肥胖小鼠模型中,口服L-丝氨酸12周可改善葡萄糖耐量,减少内脏脂肪垫,并逆转肾损伤标志物KIM-1、IL-6和TNF-α的mRNA过度表达
Pub Date : 2023-05-24 DOI: 10.3390/nutraceuticals3020021
Duyen T. P. Tran, M. Ishaq, Cheng Yang, T. Ahmad, M. Ronci, M. Zuccarini, S. Myers, Courtney McGowan, R. Eri, D. Henstridge, S. Sonda, V. Caruso
Comorbidities associated with obesity, including diabetes and kidney diseases, greatly increase mortality rates and healthcare costs in obese patients. Studies in animal models and clinical trials have demonstrated that L-serine supplementation is a safe and effective therapeutic approach that ameliorates the consequences of obesity. However, little is known about the effects of L-Serine supplementation following high-fat diet (HFD) consumption and its role in the mRNA expression of markers of kidney injury. We provide a descriptive action by which L-serine administration ameliorated the consequences of HFD consumption in relation to weight loss, glucose homeostasis as well as renal mRNA expression of markers of kidney injury. Our results indicated that L-Serine supplementation in drinking water (1%, ad libitum for 12 weeks) in male C57BL/6J mice promoted a significant reduction in body weight, visceral adipose mass (epididymal and retroperitoneal fat pads) as well as blood glucose levels in mice consuming a HFD. In addition, the amino acid significantly reduced the mRNA expression of the Kidney Injury Marker 1 (KIM-1), P2Y purinoceptor 1 (P2RY1), as well as pro-inflammatory cytokines (IL-6 and TNFα). L-serine administration had no effect on mice consuming a standard chow diet. Collectively, our findings suggest that L-serine is an effective compound for long-term use in animal models and that it ameliorates the metabolic consequences of HFD consumption and reduces the elevated levels of renal pro-inflammatory cytokines occurring in obesity.
与肥胖相关的合并症,包括糖尿病和肾脏疾病,大大增加了肥胖患者的死亡率和医疗费用。动物模型和临床试验的研究表明,补充l -丝氨酸是一种安全有效的治疗方法,可以改善肥胖的后果。然而,人们对高脂肪饮食(HFD)后补充l -丝氨酸的影响及其在肾损伤标志物mRNA表达中的作用知之甚少。我们提供了一种描述性的行为,通过这种行为,l -丝氨酸管理改善了与体重减轻、葡萄糖稳态以及肾损伤标志物的肾脏mRNA表达有关的HFD消耗的后果。我们的研究结果表明,在雄性C57BL/6J小鼠的饮用水中添加l -丝氨酸(1%,任意添加12周),可以显著降低小鼠的体重、内脏脂肪量(附睾和腹膜后脂肪垫)以及血糖水平。此外,该氨基酸显著降低了肾损伤标志物1 (KIM-1)、P2Y嘌呤受体1 (P2RY1)以及促炎细胞因子(IL-6和tnf - α)的mRNA表达。l -丝氨酸给药对食用标准鼠粮的小鼠没有影响。总的来说,我们的研究结果表明,l -丝氨酸是一种在动物模型中长期使用的有效化合物,它可以改善HFD消耗的代谢后果,降低肥胖引起的肾脏促炎细胞因子水平升高。
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引用次数: 0
Protection against Microglia Senescence by the Dietary Supplement Dekosilhue® in BV2 Cells: A New Perspective for Obesity and Related Complications 膳食补充剂Dekosilhue®对BV2细胞小胶质细胞衰老的保护作用:肥胖症及相关并发症的新视角
Pub Date : 2023-05-23 DOI: 10.3390/nutraceuticals3020020
V. Borgonetti, Chiara Sasia, Martina Morozzi, L. Cenci, N. Galeotti
Growing evidence indicates chronic low-grade systemic inflammation as a major pathophysiological mechanism of obesity. Systemic inflammation provokes an immune response in the brain through the activation of microglia that results in the development of neuroinflammation, cellular senescence, and occurrence of neurological dysfunction. In the efforts to identify an innovative intervention with potential efficacy on obesity and associated complications, our aim was to study the capability of the dietary supplement Dekosilhue® (DKS), successfully used for improving the control of body weight, to attenuate microglia senescent phenotype. Microglia senescence was induced by intermittent stimulation of BV2 cells with LPS 500 ng/mL every 72 h for 4 h/day, over a period of 10 days. DKS (100 µg/mL) treatment reduced ß-galactosidase activity and expression, the formation of senescence-associated heterochromatin foci to control levels, and increased cell viability of senescent BV2 (2 folds of control). DSK reduced the expression of Nuclear Factor-kB (NF-kB) (20% lower than control), a key molecule involved in the acquisition of the senescence-associated secretory phenotype (SASP). DKS promoted a neuroprotective effect by increasing the cell viability of SH-SY5Y neuronal cells exposed to the senescent BV2 conditioned medium to values of non-senescent cells. In conclusion, DKS attenuated the senescent microglia phenotype, showing senotherapeutic activity that might be further investigated as adjunctive intervention for obesity and obesity-related neurological disturbances.
越来越多的证据表明,慢性低度全身炎症是肥胖的主要病理生理机制。系统性炎症通过激活小胶质细胞在大脑中引发免疫反应,导致神经炎症的发展、细胞衰老和神经功能障碍的发生。为了确定一种对肥胖和相关并发症具有潜在疗效的创新干预措施,我们的目的是研究膳食补充剂Dekosilhue®(DKS)的能力,该补充剂成功用于改善体重控制,以减轻小胶质细胞衰老表型。通过用LPS 500ng/mL每隔72小时间断刺激BV2细胞诱导小胶质细胞衰老,持续4小时/天,持续10天。DKS(100µg/mL)处理降低了ß-半乳糖苷酶的活性和表达,将衰老相关异染色质灶的形成降低到对照水平,并增加了衰老BV2的细胞活力(对照的2倍)。DSK降低了核因子kB(NF-kB)的表达(比对照低20%),这是一种参与衰老相关分泌表型(SASP)获得的关键分子。DKS通过将暴露于衰老BV2条件培养基的SH-SY5Y神经元细胞的细胞活力增加到非衰老细胞的值来促进神经保护作用。总之,DKS减弱了衰老的小胶质细胞表型,显示出传感治疗活性,可作为肥胖和肥胖相关神经障碍的辅助干预措施进行进一步研究。
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Nutraceuticals
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