medium-chain triglycerides

中链甘油三酯
  • 文章类型: Case Reports
    原发性肠淋巴管扩张症(PIL)是一种罕见的疾病,其特征是胃肠道中淋巴管扩张,导致蛋白质丢失性肠病(PLE)。我们报告了一例43岁的男性,表现为难治性PLE,以全身性水肿为特征,慢性腹泻,4个月以上体重明显下降。尽管对假定的炎症性肠病进行了多次咨询和治疗,他的症状持续存在,他的病情恶化了.进行了上内窥镜检查,在十二指肠露出白色绒毛.十二指肠活检的组织病理学检查证实固有层中存在明显扩张的淋巴管,与PIL一致。病人接受了高蛋白治疗,低脂饮食补充中链甘油三酯(MCTs)和奥曲肽治疗。这种治疗方案导致显著的临床改善,包括水肿减少,白蛋白水平正常化,和胃肠道症状的解决。该病例强调了在难治性PLE成人中考虑PIL的重要性。
    Primary intestinal lymphangiectasia (PIL) is a rare disorder characterized by dilated lymphatic vessels in the gastrointestinal tract, leading to protein-losing enteropathy (PLE). We report the case of a 43-year-old male presenting with refractory PLE, characterized by generalized edema, chronic diarrhea, and significant weight loss over four months. Despite multiple consultations and treatments for presumed inflammatory bowel disease, his symptoms persisted, and his condition worsened. An upper endoscopy was performed, revealing white villi in the duodenum. Histopathological examination of duodenal biopsies confirmed the presence of markedly dilated lymphatic vessels in the lamina propria, consistent with PIL. The patient was managed with a high-protein, low-fat diet supplemented with medium-chain triglycerides (MCTs) and octreotide therapy. This treatment regimen led to significant clinical improvement, including reduced edema, normalization of albumin levels, and resolution of gastrointestinal symptoms. This case underscores the importance of considering PIL in adults with refractory PLE.
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  • 文章类型: Journal Article
    中链甘油三酯(MCT)和二十二碳六烯酸(DHA,Cn-3,22:6)对于改善认知功能和保护神经细胞至关重要。本研究探讨了MCTs和DHA联合干预对加速衰老易感小鼠8(SAMP8)脑神经细胞凋亡的抑制和认知功能的影响。4月龄雄性SAMP8小鼠随机分为4个治疗组(12只小鼠/组):DHA,MCT,DHA+MCT,和对照组,干预了七个月。12只年龄匹配的雄性衰老加速小鼠抗性1(SAMR1)被用作自然衰老组。TUNEL法和HE染色用于评估小鼠脑中神经细胞的凋亡和损伤。此外,使用Morris水迷宫(MWM)和开放场(OF)测试分析认知功能。结果表明,11月龄SAMP8小鼠的认知功能随年龄增长而降低,进一步病理检查显示神经细胞结构受损,核缩,细胞萎缩,甚至凋亡。MCTs联合补充DHA可以增加辛酸(C8:0),癸酸(C10:0),血清中的DHA水平,抑制神经细胞凋亡,改善神经细胞损伤,此外,治疗7个月后可延迟年龄相关的认知功能下降.此外,结合MCT和DHA比单独的MCT或DHA显著更有益。总之,MCTs联合DHA可通过抑制SAMP8小鼠脑内神经细胞凋亡来延缓认知功能下降。
    Medium-chain triglycerides (MCTs) and docosahexaenoic acid (DHA, Cn-3, 22:6) are essential in improving cognitive function and protecting neurocytes. This study explored the effects of the combined intervention of MCTs and DHA on inhibiting neurocyte apoptosis of the brain and improving cognitive function in senescence-accelerated mouse-prone 8 (SAMP8). Four-month-old male SAMP8 mice were randomly divided into four treatment groups (12 mice/group): DHA, MCT, DHA + MCT, and control groups, which intervened for seven months. Twelve age-matched male senescence-accelerated mouse resistant 1 (SAMR1) was used as the natural aging group. TUNEL assay and HE staining were used to assess neurocyte apoptosis and damage in the brain of mice. Moreover, the cognitive function was analyzed using the Morris water maze (MWM) and open field (OF) tests. The results showed that the cognitive function of 11-month-old SAMP8 mice decreased with age, and further pathological examination revealed the damaged neurocyte structure, karyopyknosis, cell atrophy, and even apoptosis. MCTs combined with DHA supplementation could increase octanoic acid (C8:0), decanoic acid (C10:0), and DHA levels in the serum, inhibit neurocyte apoptosis, improve neurocyte damage, moreover delay age-related cognitive decline after seven-month treatment. Furthermore, combining MCTs and DHA was significantly more beneficial than MCTs or DHA alone. In conclusion, MCTs combined with DHA could delay cognitive decline by inhibiting neurocyte apoptosis of the brain in SAMP8 mice.
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  • 文章类型: Journal Article
    背景:中链甘油三酯(MCT)在超重和肥胖个体中控制体重和减轻代谢紊乱的功效仍然是一个持续讨论的话题。值得注意的是,纯MCT和中长链甘油三酯(MLCT)之间存在差异。
    方法:本荟萃分析调查了这些人群中MCT对体重减轻和糖脂代谢的疗效。明确评估纯MCT和MLCT的差异效应。我们对研究体重减轻和糖脂参数的相关研究进行了随机效应荟萃分析,结合基于干预类型进行的亚组分析,纯MCT与MLCT。
    结果:我们的发现表明,富含MCT的饮食在实现体重减轻方面更有效(WMD:-1.53%;95%CI:-2.44,-0.63;p<0.01),特别是含有纯MCT的那些(WMD:-1.62%;95%CI:-2.78,-0.46;p<0.01),与富含长链脂肪酸(LCTs)的饮食相比。然而,我们的亚组分析表明,富含MLCTs的饮食并未显著降低体重减轻.此外,富含MCTs的饮食与血液甘油三酯水平和胰岛素抵抗稳态模型评估(HOMA-IR)评分的显着降低相关。与富含LCTs的饮食相比。
    结论:因此,作者建议将纯MCT纳入超重和肥胖个体的饮食干预措施,尤其是那些有血脂异常和葡萄糖代谢受损等合并症的患者。
    BACKGROUND: The efficacy of medium-chain triglycerides (MCTs) for weight management and mitigating metabolic disorders among individuals with overweight and obesity remains a topic of ongoing discussion. Notably, there is a gap in the distinction between pure MCTs and medium-long-chain triglycerides (MLCTs).
    METHODS: This meta-analysis investigates the efficacy of MCTs on weight loss and glucolipid metabolism in these populations, explicitly evaluating the differential effects of pure MCTs and MLCTs. We performed a random-effects meta-analysis on relevant studies examining weight loss and glucolipid parameters, incorporating a subgroup analysis conducted based on intervention types, pure MCTs versus MLCTs.
    RESULTS: Our findings revealed diets enriched with MCTs are more effective in achieving weight reduction (WMD: -1.53%; 95% CI: -2.44, -0.63; p < 0.01), particularly those containing pure MCTs (WMD: -1.62%; 95% CI: -2.78, -0.46; p < 0.01), compared to long-chain fatty acids (LCTs) enriched diets. However, our subgroup analysis indicates that an MLCTs-enriched diet did not significantly reduce weight loss. Additionally, MCTs-enriched diets were associated with significant reductions in blood triglyceride levels and Homeostatic Model Assessment for Insulin Resistance (HOMA-IR) scores, compared to LCTs-enriched diets.
    CONCLUSIONS: Hence, the authors recommend incorporating pure MCTs in dietary interventions for individuals with overweight and obesity, particularly those with comorbidities such as dyslipidemia and impaired glucose metabolism.
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  • 文章类型: Journal Article
    蛋白质丢失性肠病(PLE)描述了一种过度蛋白质丢失进入胃肠道的综合征,这可能是由于各种各样的病因。对于蛋白质丢失与淋巴管扩张相关的儿童,医学营养疗法侧重于限制肠内长链甘油三酯,因此肠道乳糜的产生是治疗的一个组成部分。该方法基于减少肠乳糜的产生将同时减少淋巴起源的肠蛋白损失的原理。在持续活跃的PLE患者或脂肪限制饮食的患者中,特别是在婴儿和幼儿中,补充卡路里可以与中链甘油三酯(MCT)一起提供。MCT被直接吸收到血液中,绕过肠道淋巴管,不促进肠道乳糜的产生。患有活性PLE或饮食脂肪限制的患者应监测相关的微量营养素缺乏。在本文中,我们寻求正式提出推荐的营养干预措施,饮食教育和病人咨询的原则,根据我们在针对PLE人群的繁忙临床转诊实践中的经验,对患有PLE的儿科人群进行参数监测。
    Protein-losing enteropathy (PLE) describes a syndrome of excessive protein loss into the gastrointestinal tract, which may be due to a wide variety of etiologies. For children in whom the protein loss is associated with lymphangiectasia, medical nutrition therapy focused on restricting enteral long-chain triglycerides and thus intestinal chyle production is an integral component of treatment. This approach is based on the principle that reducing intestinal chyle production will concurrently decrease enteric protein losses of lymphatic origin. In patients with ongoing active PLE or those who are on a fat-restricted diet, particularly in infants and young children, supplemental calories may be provided with medium-chain triglycerides (MCT). MCT are absorbed directly into the bloodstream, bypassing intestinal lymphatics and not contributing to intestinal chyle production. Patients with active PLE or who are on dietary fat restriction should be monitored for associated micronutrient deficiencies. In this paper, we seek to formally present recommended nutrition interventions, principles of dietary education and patient counseling, and monitoring parameters in pediatric populations with PLE based on our experience in a busy clinical referral practice focused on this population.
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  • 文章类型: Journal Article
    激活NLRP3(NOD-,LRR-,和含pyrin结构域的蛋白3)在阿尔茨海默病(AD)的发病机理中至关重要。多模式治疗干预是改变AD进展过程的最可行方法。因此,本研究旨在研究甜菜碱(BET)和初榨椰子油(VCO)对氯化铝诱导的Wistar大鼠AD中NLRP3的调节。
    分别口服给予BET(100,200mg/kg)和VCO(1,5g/kg)和组合(BET100mg/kg+VCO1g/kg和BET200mg/kg+VCO5g/kg)42天。在第21天和第42天,进行行为测试以检查动物的认知。乙酰胆碱酯酶(AChE)活性,氧化应激标志物,NLRP3和IL-1β的估算,在海马(H)和皮质(C)进行组织学检查。
    用BET和VCO单独或联合治疗改善了行为特征(MWM和PAp<0.0001;EPMp=0.5184),抑制AChE活性(C,p=0.0101;H,p<0.0001),并降低了大脑中的氧化应激。此外,联合治疗恢复了NLRP3水平(C,p=0.0062;H,p<0.0001)和IL1β(C,p=0.0005;H,p=0.0098)。联合治疗明显减轻了神经元变性的程度,淀粉样蛋白沉积,脑组织坏死.目前的研究表明,该组合策略通过调节NLRP3炎性体通路有效地控制了神经炎症,为新的治疗方法铺路。
    UNASSIGNED: Activating NLRP3 (NOD-, LRR-, and pyrin domain-containing protein 3) is crucial in the pathogenesis of Alzheimer\'s disease (AD). A multimodal treatment intervention is the most feasible way to alter the course of AD progression. Hence, the current study was conducted to study the combination of betanin (BET) and virgin coconut oil (VCO) on NLRP3 regulation in aluminum chloride-induced AD in Wistar rats.
    UNASSIGNED: BET (100,200 mg/kg) and VCO (1, 5 g/kg) alone and in combination (BET 100 mg/kg + VCO 1 g/kg and BET 200 mg/kg + VCO 5 g/kg) were given orally for 42 days. On day 21 and 42nd, the behavioral test was performed to check the animal\'s cognition. Acetylcholinesterase (AChE) activity, oxidative stress markers, estimation of NLRP3 and IL-1β, and histological examinations were conducted in the hippocampus (H) and cortex (C).
    UNASSIGNED: Treatment with BET and VCO alone or combined improved behavioral characteristics (MWM and PA p < 0.0001; EPM p = 0.5184), inhibited AChE activity (C, p = 0.0101; H, p < 0.0001), and lowered oxidative stress in the brain. Also, combination treatment restored the levels of NLRP3 (C, p = 0.0062; H, p < 0.0001) and IL1β (C, p = 0.0005; H, p = 0.0098). The combination treatment significantly reduced the degree of neuronal degeneration, amyloid deposition, and necrosis in the brain tissue. The current study revealed that the combination strategy effectively controlled neuroinflammation via modulation of the NLRP3 inflammasome pathway, paving the way for the new treatment.
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  • 文章类型: Journal Article
    衰老通常与慢性炎症和健康下降有关。兽医和老化的狗和猫的主人都对营养解决方案和策略感兴趣,以防止与年龄有关的疾病的迹象。延长寿命,提高生活质量。肌肉质量的生理减少,免疫力下降,感觉敏锐度的下降是在其他健康的高级宠物中经常出现的一些变化;然而,也可能增加肾脏等病理的风险,心血管,肌肉骨骼,和肿瘤疾病。衰老也可能导致认知功能下降甚至认知功能障碍。一些可能有助于预防和治疗年龄相关疾病的营养策略包括补充ω3多不饱和脂肪酸和抗氧化营养素,可以帮助调节炎症和有益于骨关节炎,肾脏疾病,癌症,还有更多.补充中链甘油三酯在治疗犬认知功能障碍方面显示出希望,因为这些可以代谢为酮体,用作中枢神经系统的替代能源。此外,大量摄入可溶性和生物可利用形式的膳食磷可能导致肾脏疾病,这在高级宠物中更为关注。没有针对高级宠物的营养要求的发布指南,因此,为高级狗和猫销售的产品变化很大。
    Aging is often associated with chronic inflammation and declining health. Both veterinarians and owners of aging dogs and cats are interested in nutritional solutions and strategies to prevent signs of age-related disease, increase longevity, and improve quality of life. Physiological decreases in muscle mass, decreased immunity, and a decrease in sense acuity are some of the changes often seen in otherwise healthy senior pets; however, there may also be an increase in risk for pathologies such as renal, cardiovascular, musculoskeletal, and neoplastic diseases. Aging may also lead to cognitive decline and even cognitive dysfunction. Some nutritional strategies that may be helpful with the prevention and treatment of age-related diseases include supplementation with ω3 polyunsaturated fatty acids and antioxidant nutrients that can help modulate inflammation and benefit osteoarthritis, renal disease, cancer, and more. Supplementation with medium-chain triglycerides shows promise in the treatment of canine cognitive dysfunction as these may be metabolized to ketone bodies that are utilized as an alternative energy source for the central nervous system. Additionally, a high intake of dietary phosphorus in soluble and bioavailable forms can lead to renal disease, which is of greater concern in senior pets. There are no published guidelines for nutritional requirements specific to senior pets and as a result, products marketed for senior dogs and cats are highly variable.
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  • 文章类型: Journal Article
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  • 文章类型: Journal Article
    肥胖可能与显著的代谢紊乱有关。我们先前的研究发现,中链甘油三酯(MCT)改善肥胖大鼠的脂质代谢。然而,研究MCT对肥胖大鼠糖代谢的影响很少。本研究旨在研究三种不同的MCT对肥胖大鼠葡萄糖代谢的影响和机制。诱发肥胖,Sprague-Dawley(SD)大鼠饲喂高脂肪饮食,然后用辛酸甘油三酯(CYT)治疗12周,癸酸甘油三酯(CT),和月桂酸甘油三酯(LT)。结果表明,三种类型的MCT干预降低了血脂水平(TC,TG,LDL-c,和HDL-c),高血糖症,胰岛素抵抗(胰岛素,OGTT,HOMA-IR,和ISI),和炎症标志物(IL-4,IL-1β,和TNF-α)在肥胖大鼠中(p<0.01),上述参数在高脂恢复组(HR)组中得到了最小的改善。MCTs可以通过调节PI3K/AKT信号通路来减轻肥胖大鼠的胰岛素抵抗和改善糖代谢。此外,MCTs可激活过氧化物酶体增殖物激活受体(PPAR)γ,降低CDK5介导的PPARγser237的磷酸化,提高肥胖大鼠的胰岛素敏感性,且无脂质沉积。在MCT组中,CT给药在上述途径中表现最好,与最低的血糖水平和胰岛素抵抗。这些发现有助于更深入地了解健康益处与所使用的特定类型的MCT之间的联系。
    Obesity can be associated with significant metabolic disorders. Our previous study found that medium-chain triglycerides (MCTs) improved lipid metabolism in obese rats. However, scant attention has been given to exploring the impact of MCTs on glucose metabolism in obese rats. This study is designed to examine the effects and mechanisms of three distinct MCTs on glucose metabolism in obese rats. To induce obesity, Sprague-Dawley (SD) rats were fed a high-fat diet, followed by a 12-week treatment with caprylic triglyceride (CYT), capric triglyceride (CT), and lauric triglyceride (LT). The results showed that three types of MCT intervention reduced the levels of lipids (TC, TG, LDL-c, and HDL-c), hyperglycemia, insulin resistance (insulin, OGTT, HOMA-IR, and ISI), and inflammatory markers (IL-4, IL-1β, and TNF-α) in obese rats (p < 0.01), The above parameters have been minimally improved in the high-fat restoring group (HR) group. MCTs can modulate the PI3K/AKT signaling pathways to alleviate insulin resistance and improve glucose metabolism in obese rats. Furthermore, MCTs can activate peroxisome proliferator-activated receptor (PPAR) γ and reduce the phosphorylation of PPARγser237 mediated by CDK5, which can improve insulin sensitivity without lipid deposition in obese rats. Among the MCT group, CT administration performed the best in the above pathways, with the lowest blood glucose level and insulin resistance. These findings contribute to a deeper understanding of the connection between health benefits and the specific type of MCT employed.
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  • 文章类型: Journal Article
    非酒精性脂肪性肝病(NAFLD)是全球最常见的慢性肝病,与肥胖密切相关。胰岛素抵抗和2型糖尿病。目前,没有药物治疗可用于治疗NAFLD,和生活方式的改变,包括饮食干预,是唯一的补救办法。因此,我们进行了一项研究,以确定是否补充中链甘油三酯(MCT),含有C8和C10(60/40)的混合物,减轻肥胖和胰岛素抵抗小鼠的NAFLD。要做到这一点,我们给C57BL/6雄性小鼠喂食高脂饮食(HFD)12周以诱导肥胖和肝脂肪变性,之后,肥胖小鼠被随机分配,要么继续接受HFD,要么过渡到补充有MCT(HFD+MCT)或低脂饮食(LFD)的HFD,持续6周作为另一种饮食干预模型.另一组小鼠在整个研究中保持在LFD上并用作瘦对照组。肥胖小鼠过渡到HFD+MCT表现出改善葡萄糖和胰岛素耐量试验,与HFD喂养的小鼠相比,后者的改善与肥胖的变化无关。此外,补充MCTs可显着减少肝脏脂肪变性,改善肝脏酶和降低肝脏炎症相关基因的表达水平,与在过渡到LFD的肥胖小鼠中观察到的水平相似。重要的是,HFDMCT显着降低了肝神经酰胺和二酰甘油的含量,并阻止了蛋白激酶C-ε向质膜的易位。我们的研究表明,补充主要由C8和C10配制的MCT可有效改善肥胖小鼠的NAFLD。
    Non-alcoholic fatty liver disease (NAFLD) is projected to be the most common chronic liver disease worldwide and is closely linked to obesity, insulin resistance and type 2 diabetes. Currently, no pharmacological treatments are available to treat NAFLD, and lifestyle modification, including dietary interventions, is the only remedy. Therefore, we conducted a study to determine whether supplementation with medium-chain triglycerides (MCTs), containing a mixture of C8 and C10 (60/40), attenuates NAFLD in obese and insulin-resistant mice. To achieve that, we fed C57BL/6 male mice a high-fat diet (HFD) for 12 weeks to induce obesity and hepatic steatosis, after which obese mice were assigned randomly either to remain on the HFD or to transition to an HFD supplemented with MCTs (HFD + MCTs) or a low-fat diet (LFD) for 6 weeks as another dietary intervention model. Another group of mice was kept on an LFD throughout the study and used as a lean control group. Obese mice that transitioned to HFD + MCTs exhibited improvement in glucose and insulin tolerance tests, and the latter improvement was independent of changes in adiposity when compared with HFD-fed mice. Additionally, supplementation with MCTs significantly reduced hepatic steatosis, improved liver enzymes and decreased hepatic expression of inflammation-related genes to levels similar to those observed in obese mice transitioned to an LFD. Importantly, HFD + MCTs markedly lowered hepatic ceramide and diacylglycerol content and prevented protein kinase C-ε translocation to the plasma membrane. Our study demonstrated that supplementation with MCTs formulated mainly from C8 and C10 effectively ameliorated NAFLD in obese mice.
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  • 文章类型: Journal Article
    UNASSIGNED: To extend individuals\' healthy life expectancies, the improvement of subjective health and quality of life (QOL) has been increasingly prioritized, alongside the improvement of their physical functioning. Reports have indicated that intake of medium-chain triglycerides (MCTs) benefits the physical health of older individuals requiring nursing care, and athletes, and healthy individuals. But there are few studies investigating the effects of MCTs on subjective health and QOL. The present study sought to evaluate the combined effects of 12-week MCTs supplements and moderate-intensity walking exercise on the subjective health and QOL of middle-aged and older adults aged 60-74 with low BMIs (< 24 kg/m2) and who had no exercise habits.
    UNASSIGNED: A placebo-controlled, double-blind, parallel-group trial was conducted. Three MCTs supplement groups with different doses and fatty acid compositions were compared with a control group. The study used the SF-36v2 questionnaire to assess subjective health and health-related QOL (HRQOL).
    UNASSIGNED: The result showed significant improvements in the scores on subscales of the physical QOL, such as Physical functioning and General health, and summary scores on the mental QOL, compared to the control.
    UNASSIGNED: It is estimated that the combination of continuous intake of MCTs and walking exercise may affect HRQOL and improve subjective physical and mental health in sedentary, healthy, middle-aged and older adults.
    UNASSIGNED: https://rctportal.niph.go.jp/s/detail/um?trial_id=UMIN000046861, UMIN000046861.
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