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Jujuboside A ameliorates glomerular podocytes lipotoxicity in diabetic mice by YY1-mediated promotion of intracellular cholesterol transport and efflux 红枣苷A通过yy1介导的促进细胞内胆固醇转运和外溢改善糖尿病小鼠肾小球足细胞脂毒性。
IF 4.9 2区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-12-13 DOI: 10.1016/j.jnutbio.2025.110231
Ying Liu , Dandan Pan , Pinyan Zhang , Yuting Shao , Yinhua Kong , Zhenzhou Jiang , Wenjing Zhu , Houwen Wang , Xinghan Liu , Sitong Qian , Tao Wang , Xia Zhu , Tingting Yang , Qian Lu
Glomerular podocytes injury represents a critical pathological hallmark of diabetic kidney disease (DKD), in which lipotoxicity plays a central pathogenic role. Our previous investigations in type 2 diabetes mellitus (T2DM) have demonstrated that Jujuboside A (Ju A), a triterpene saponin isolated from Semen Ziziphi Spinosae (SZS), exerted dual therapeutic effects in T2DM by ameliorating hepatic steatosis and renal dysfunction. However, the role of podocytes lipid metabolism in Ju A-mediated protection against DKD remain undefined prior to the present study. In this work, we reported that Ju A significantly attenuated glomerular podocytes injury and lipotoxicity in DKD, while concurrently improving renal function and preserving glomerular morphology. Mechanistically, Yin Yang 1 (YY1)-mediated alleviation of lipotoxicity contributed to the protective effect of Ju A against glomerular podocytes injury, primarily by promoting intracellular cholesterol transport and efflux. In conclusion, our findings demonstrated that Ju A mitigated lipid overload in glomerular podocytes by modulating cholesterol homeostasis via YY1, which not only intercepted the pathological progression of DKD but also provided a potential therapeutic target (YY1) and candidate agent (Ju A) for DKD intervention.
肾小球足细胞损伤是糖尿病肾病(DKD)的一个重要病理标志,其中脂肪毒性起着核心的致病作用。我们之前对2型糖尿病(T2DM)的研究表明,从紫皮子(SZS)中分离的三萜皂苷枣苷A (Ju A)通过改善肝脂肪变性和肾功能障碍,对T2DM具有双重治疗作用。然而,在本研究之前,足细胞脂质代谢在Ju a介导的抗DKD保护中的作用仍未明确。在这项工作中,我们报道了菊a显著减轻DKD肾小球足细胞损伤和脂肪毒性,同时改善肾功能和保持肾小球形态。在机制上,阴阳1 (YY1)介导的脂肪毒性减轻有助于菊a对肾小球足细胞损伤的保护作用,主要是通过促进细胞内胆固醇的运输和外排。总之,我们的研究结果表明Ju A通过YY1调节胆固醇稳态来减轻肾小球足细胞的脂质过载,这不仅阻断了DKD的病理进展,而且为DKD干预提供了潜在的治疗靶点(YY1)和候选药物(Ju A)。
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引用次数: 0
The effects of different forms of vitamin E on gut microbiota, mechanisms, and implications in disease prevention 不同形式的维生素E对肠道微生物群的影响,机制和疾病预防的意义。
IF 4.9 2区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-12-12 DOI: 10.1016/j.jnutbio.2025.110235
Qing Jiang
The gut microbiota plays an important role in host health and dysbiosis contributes to disease development. Natural forms of vitamin E consist of eight lipophilic antioxidants, i.e., alpha-, beta-. gamma- and delta-tocopherol (αT, βT, γT and δT) and alpha-, beta-. gamma- and delta-tocotrienol (αTE, βTE, γTE and δTE). Vitamin E forms and their metabolites including 13′-carboxychromanols (13′-COOHs) have been shown to possess anti-inflammatory activities. Interestingly, recent human and animal studies reveal that vitamin E forms and δTE-13′-COOH (metabolite of δTE) can modulate gut microbiota. Specifically, supplementation of αT, γT, tocotrienols or δTE-13′-COOH elevated some beneficial bacteria or attenuated disease-associated decrease of probiotics including butyrate producers. This review focuses on the current knowledge of the effects of different forms of vitamin E and δTE-13′-COOH on gut microbiome. Although the mechanisms underlying modulation of gut microbiota remain to be determined, this author proposes that promotion of beneficial gut microbes by vitamin E forms may in part be rooted in their antioxidant and anti-inflammatory activities as well as protection of intestinal barrier integrity, and that the modulatory effects on gut microbes likely contributes to vitamin E-facilitated disease prevention. Finally, this review discusses knowledge gaps and future research efforts needed to uncover how vitamin E forms interact with gut microbiota and utilize such knowledge for improving human health.
肠道菌群在宿主健康中起着重要作用,生态失调有助于疾病的发展。天然形式的维生素E由八种亲脂抗氧化剂组成,即α -, β -。-和-生育酚(αT, βT, γT和δT)和-,-。-和-生育三烯醇(αTE, βTE, γTE和δTE)。维生素E形式及其代谢产物,包括13'-羧基变色醇(13'- cooh)已被证明具有抗炎活性。有趣的是,最近的人类和动物研究表明,维生素E形式和δTE-13'-COOH (δTE的代谢物)可以调节肠道微生物群。具体而言,补充αT、γT、生育三烯醇或δTE-13′-COOH可增加一些有益菌或减轻包括丁酸产生菌在内的益生菌的疾病相关减少。本文综述了不同形式的维生素E和δTE-13′-COOH对肠道微生物组的影响。虽然肠道微生物群调节的机制仍有待确定,但作者提出,维生素E形式对有益肠道微生物的促进可能部分源于其抗氧化和抗炎活性以及对肠道屏障完整性的保护,对肠道微生物的调节作用可能有助于维生素E促进疾病的预防。最后,本综述讨论了知识差距和未来的研究工作,以揭示维生素E形式如何与肠道微生物群相互作用,并利用这些知识来改善人类健康。
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引用次数: 0
Bovine milk fat and cancer risk: A double-edged sword? 牛乳脂肪与癌症风险:双刃剑?
IF 4.9 2区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-12-11 DOI: 10.1016/j.jnutbio.2025.110233
Laura Elaine Strittmatter , Alban Piotrowsky , Luigi Marongiu , Sascha Venturelli , Christian Leischner
Among the many macro- and micronutrients contained in cow's milk, one of the most important is the lipid fraction. While the nutritional and physiological benefits of milk consumption after the first years of life are the subject of some debate, there also appear to be conflicting views on the health aspects of the milk lipids, including their involvement in cancer.
Positive in vitro and/or in vivo data on growth-inhibiting or cytotoxic effects are available for lipid components of milk such as sphingomyelins and their degradation products or various hydroxy fatty acids. Isomers of linoleic acid and branched-chain fatty acids have also been shown to have anticarcinogenic potential in animal models by inducing apoptosis.
On the other hand, there is evidence of an association between increased cancer mortality and the consumption of high-fat milk, which contradicts the tumor-protecting effects observed in vitro and in vivo. Consumption of high-fat dairy products appears to be associated with an increased risk of developing types of cancer compared to low-fat dairy or other topical soy-based alternatives.
There are ambiguous results for an anticarcinogenic effect of various lipid constituents of cow's milk as well as for an association between general milk fat consumption and the occurrence especially of breast, colorectal, and prostate tumors.
Whether the effects observed in epidemiological studies can be attributed to milk lipids or whether the promising preclinical data on their anti-cancer efficacy can be transferred to humans remains unclear at present, therefore this review summarizes the latest findings.
牛奶中含有许多宏量和微量营养素,其中最重要的是脂质部分。虽然一岁以后喝牛奶的营养和生理益处是一些争论的主题,但关于牛奶脂质的健康方面,包括它们与癌症的关系,似乎也存在相互矛盾的观点。牛奶中的脂质成分,如鞘磷脂及其降解产物或各种羟基脂肪酸,具有抑制生长或细胞毒性作用的体外和/或体内阳性数据。在动物模型中,亚油酸和支链脂肪酸的异构体也显示出通过诱导细胞凋亡而具有抗癌潜力。另一方面,有证据表明癌症死亡率增加与食用高脂牛奶之间存在关联,这与体外和体内观察到的肿瘤保护作用相矛盾。与低脂乳制品或其他以大豆为基础的替代品相比,食用高脂乳制品似乎与患各种癌症的风险增加有关。关于牛奶中各种脂质成分的抗癌作用,以及一般牛奶脂肪摄入量与特别是乳房、结肠直肠和前列腺肿瘤的发生之间的关系,目前的结果并不明确。目前尚不清楚流行病学研究中观察到的效果是否归因于牛奶脂质,或者其抗癌功效的临床前数据是否可以转移到人类身上,因此本文综述了最新发现。
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引用次数: 0
The role of folic acid and vitamin B12 in gestational diabetes mellitus and offspring development: A narrative review 叶酸和维生素B12在妊娠期糖尿病及其后代发育中的作用:综述。
IF 4.9 2区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-12-11 DOI: 10.1016/j.jnutbio.2025.110232
Jiayue Su , Chenran Cai , Ying Zhang , Donglan Wang , Sijia Yan , Xueqiong Yao
Gestational diabetes mellitus (GDM) is a prevalent complication, affecting approximately 14% of pregnancies worldwide, and is associated with an elevated risk of both maternal and infant complications. It also exerts long-term adverse effects on offspring health, including metabolic, cardiovascular, and neurodevelopmental disorders, thereby compromising maternal and infant well-being. During pregnancy, an imbalance between folic acid and vitamin B12 has been linked to an increased risk of GDM and unfavorable metabolic outcomes in offspring, underscoring the potential clinical value of maintaining their balance and implementing early interventions. This review summarizes the role of folic acid and vitamin B12 in gestational diabetes and offspring development, aiming to bridge the gap between mechanistic insights and clinical evidence. It highlights the potential for reverse causality in linking vitamin B12-folic acid imbalance to GDM risk and underscores the need to integrate novel metabolic and epigenetic concepts into future intervention trials.
妊娠期糖尿病(GDM)是一种普遍的并发症,影响全世界约14%的妊娠,并与母婴并发症的风险升高有关。它还对后代健康产生长期不利影响,包括代谢、心血管和神经发育障碍,从而损害孕产妇和婴儿的健康。在怀孕期间,叶酸和维生素B12之间的不平衡与GDM的风险增加和后代的不利代谢结果有关,强调了维持它们之间的平衡和实施早期干预的潜在临床价值。本文综述了叶酸和维生素B12在妊娠期糖尿病及其后代发育中的作用,旨在弥合机制认识与临床证据之间的差距。它强调了将维生素b12 -叶酸失衡与GDM风险联系起来的反向因果关系的潜力,并强调了将新的代谢和表观遗传学概念整合到未来干预试验中的必要性。
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引用次数: 0
Food-derived chlorogenic acid prevents aortic aneurysm and dissection by nutritional restore branched-chain amino acid dyshomeostasis 食源性绿原酸通过营养恢复支链氨基酸失衡预防主动脉瘤和夹层。
IF 4.9 2区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-12-06 DOI: 10.1016/j.jnutbio.2025.110211
Zhen-xiao Ma , Ze-qun Yin , Zi-an Feng , Xiang-peng Xie , Ao Li , Shi-hao Fu , Qi Yue , Sheng Wang , Li-kun Ma , Ya-jun Duan , Dan-qing He , Jun-fang Wu , Shuang Zhang , Zhi-wei Zhao
Aortic aneurysm and dissection (AAD) is a life-threatening cardiovascular disorder with no currently available targeted therapies, underscoring the critical need for effective preventive strategies. Through integrative analysis of the UK Biobank and FooDB databases, we identified chlorogenic acid (CGA)––a natural polyphenol abundant in coffee and tea––as a potential protective compound against AAD. Using two mouse models of AAD: β-aminopropionitrile (BAPN) plus angiotensin II (Ang II) in 4-week-old wild-type mice and erythropoietin (EPO)-induced AAD in 8-week-old wild-type mice, we demonstrated that CGA administration significantly reduced AAD incidence, mortality, and aortic wall damage. Mechanistically, we discovered that the large neutral amino acid transporter 3 (LAT3) plays a pivotal role in AAD pathogenesis by mediating excessive branched-chain amino acids (BCAAs) uptake into vascular smooth muscle cells (SMCs). Dysregulated BCAAs metabolism led to intracellular BCAAs accumulation and hyperactivation of the mTOR signaling pathway, driving SMCs reprogramming and promoting AAD development. Crucially, CGA directly targeted and inhibited LAT3, thereby normalizing BCAA metabolism and suppressing mTOR activity, which mitigated AAD progression. Our findings not only reveal the therapeutic potential of CGA in AAD prevention but also identify the LAT3/BCAA/mTOR axis as a novel mechanistic target for AAD intervention.
主动脉瘤和夹层(AAD)是一种危及生命的心血管疾病,目前尚无靶向治疗方法,因此迫切需要有效的预防策略。通过对英国生物银行和食品数据库的综合分析,我们发现绿原酸(CGA)是一种富含咖啡和茶的天然多酚,是一种潜在的抗AAD的保护化合物。通过4周龄野生型小鼠AAD-β-氨基丙腈(BAPN) +血管紧张素II (Ang II)和8周龄野生型小鼠促红细胞生成素(EPO)诱导的AAD两种小鼠模型,我们证明CGA给药可显著降低AAD的发病率、死亡率和主动脉壁损伤。在机制上,我们发现大中性氨基酸转运蛋白3 (LAT3)通过介导血管平滑肌细胞(SMCs)对过量支链氨基酸(BCAAs)的摄取,在AAD的发病机制中起关键作用。BCAAs代谢失调导致细胞内BCAAs积累和mTOR信号通路的过度激活,驱动SMCs重编程,促进AAD的发展。关键是,CGA直接靶向并抑制LAT3,从而使BCAA代谢正常化,抑制mTOR活性,从而减缓AAD的进展。我们的研究结果不仅揭示了CGA在AAD预防中的治疗潜力,而且还确定了LAT3/BCAA/mTOR轴作为AAD干预的新机制靶点。
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引用次数: 0
Promoter demethylation and protein O-GlcNAcylation-mediated enhancement of fatty acid synthase contributes to hepatic steatosis and inflammation in MASLD 启动子去甲基化和蛋白o - glcn酰化介导的脂肪酸合成酶增强有助于MASLD的肝脂肪变性和炎症。
IF 4.9 2区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-12-06 DOI: 10.1016/j.jnutbio.2025.110227
Zou-Han Lin , Pin-I Chou , Jia-Wei Chang , Zong-Chen Lin , Yuan-Ting Sun , Ming-Hui Chang , Shih-En Huang , Yu-Min Yeh , Chien-Chin Chen , I-Chen Peng
Dysregulated lipid metabolism in hepatocytes heightens the risk of metabolic dysfunction-associated steatotic liver disease (MASLD). Fatty acid synthase (FAS), one of the key enzymes regulating lipid production in the liver, is upregulated in MASLD patients, making it a prime target for treatment. However, the regulatory mechanisms governing FAS expression and its post-translational modification in MASLD, as well as their potential contribution to hepatic inflammation, remain incompletely understood. In this study, we find that ten-eleven translocation 2 (TET2), thymine DNA glycosylase (TDG), FAS, and glutamine synthetase (GS) are upregulated in lipid mixture- or high-fat diet-induced hepatic steatosis, both in vitro and in vivo. The lipid mixture increases FAS and GS expression through TDG-mediated promoter demethylation. It also promotes hepatic lipid droplet accumulation and inflammation through TDG, FAS, and GS. Additionally, GS is essential for lipid mixture-induced O-linked N-acetylglucosaminylation (O-GlcNAcylation) of FAS, which enhances its stability in hepatocytes. These findings demonstrate that upregulation of FAS through TDG-mediated promoter demethylation and GS-mediated O-GlcNAcylation accelerates hepatic steatosis and inflammation in MASLD, providing mechanistic insights and highlighting these regulatory pathways as potential targets for therapeutic intervention.
肝细胞脂质代谢失调会增加代谢功能障碍相关脂肪变性肝病(MASLD)的风险。脂肪酸合成酶(FAS)是调节肝脏脂质生成的关键酶之一,在MASLD患者中上调,使其成为治疗的主要靶点。然而,FAS表达的调控机制及其在MASLD中的翻译后修饰,以及它们对肝脏炎症的潜在贡献,仍然不完全清楚。在这项研究中,我们发现在体外和体内,10 - 11易位2 (TET2)、胸腺嘧啶DNA糖基化酶(TDG)、FAS和谷氨酰胺合成酶(GS)在脂质混合物或高脂肪饮食诱导的肝脂肪变性中上调。脂质混合物通过tdg介导的启动子去甲基化增加FAS和GS的表达。它还通过TDG、FAS和GS促进肝脂滴积聚和炎症。此外,GS对于脂质混合物诱导的FAS的O-linked n -乙酰氨基葡萄糖酰化(o - glcnac酰化)至关重要,这增强了其在肝细胞中的稳定性。这些发现表明,通过tdg介导的启动子去甲基化和gs介导的o - glcn酰化,FAS的上调加速了MASLD的肝脂肪变性和炎症,提供了机制上的认识,并突出了这些调节途径作为治疗干预的潜在靶点。
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引用次数: 0
Ferroptosis inhibition by spermidine via the NCOA4/Ferritin axis and polyamine–microbiota dysbiosis in ulcerative colitis 亚精胺通过NCOA4/铁蛋白轴抑制溃疡性结肠炎中的铁下沉和多胺微生物群失调。
IF 4.9 2区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-12-04 DOI: 10.1016/j.jnutbio.2025.110222
Mengjie Zhang , Ziyue Dou , Langlang Yang , Hongqian Wang , Beibei Tian , Shaocheng Hong , Qi Yang , Jian Lu , Xi Chen
Spermidine (SPD), a microbiota‑derived polyamine, exerts potent anti‑inflammatory effects in colitis. This study investigated how SPD mitigates dextran sulfate sodium (DSS)–induced ferroptosis and explored the association between gut microbiota composition and polyamine metabolites in patients with ulcerative colitis (UC). DSS‑induced UC models were established in mice and HT‑29 cells, followed by SPD treatment. RNA sequencing was used to profile transcriptomic changes in HT‑29 cells, and the effects of SPD on NCOA4 and Ferritin were evaluated both in vivo and in vitro. NCOA4 silencing was performed to clarify its role in SPD‑mediated protection against ferroptosis. Fecal polyamines and gut microbiota profiles from UC patients and healthy controls were analyzed using UHPLC‑MS/MS and 16S rRNA sequencing. SPD significantly alleviated DSS‑induced colitis. Gene set enrichment analysis (GSEA) of differentially expressed genes in HT‑29 cells highlighted iron‑metabolism pathways as prominently affected. SPD mitigated DSS‑induced ferroptosis in vitro and in vivo, likely by limiting NCOA4‑dependent ferritin turnover and maintaining iron balance. In UC patients, disturbances in fecal polyamine levels corresponded closely with shifts in gut microbial composition, with 27 genera showing significant correlations with polyamine metabolites. Together, these findings position SPD as a modulator of ferroptosis via the NCOA4–ferritin axis and point to a potential therapeutic avenue. In UC, disrupted polyamine metabolites are closely linked to microbial alterations, implicating microbe–polyamine interactions in disease pathogenesis.
亚精胺(SPD)是一种微生物衍生的多胺,在结肠炎中具有有效的抗炎作用。本研究探讨SPD如何减轻葡聚糖硫酸钠(DSS)诱导的铁下垂,并探讨溃疡性结肠炎(UC)患者肠道微生物群组成与多胺代谢物之间的关系。在小鼠和HT - 29细胞中建立DSS诱导的UC模型,然后进行SPD处理。利用RNA测序分析HT - 29细胞的转录组学变化,并在体内和体外评估SPD对NCOA4和铁蛋白的影响。研究人员对NCOA4进行了沉默,以阐明其在SPD介导的铁凋亡保护中的作用。使用UHPLC - MS/MS和16S rRNA测序分析UC患者和健康对照的粪便多胺和肠道微生物群谱。SPD可显著缓解DSS诱导的结肠炎。HT - 29细胞中差异表达基因的基因集富集分析(GSEA)显示铁代谢途径受到显著影响。SPD在体外和体内减轻了DSS诱导的铁凋亡,可能是通过限制NCOA4依赖性铁蛋白的周转和维持铁平衡。在UC患者中,粪便多胺水平的紊乱与肠道微生物组成的变化密切相关,27个属与多胺代谢物有显著相关性。总之,这些发现将SPD定位为通过ncoa4 -铁蛋白轴的铁下垂调节剂,并指出了潜在的治疗途径。在UC中,被破坏的多胺代谢物与微生物改变密切相关,暗示微生物-多胺相互作用在疾病发病机制中。
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引用次数: 0
Effect of lactation time and dietary patterns on human milk nucleotides: A longitudinal and cross-sectional study 哺乳时间和饮食模式对人乳核苷酸的影响:一项纵向和横断面研究。
IF 4.9 2区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-12-04 DOI: 10.1016/j.jnutbio.2025.110224
Hai-Tao Yu , Lu-Tong Yang , Miao Yu , Yi-Ru Chen , Song Ni , Mo-Tong Liu , Wen-Hui Xu , Lin Xie
Nucleotides play a crucial role in the growth and development of infants. Studying the dynamics of nucleotides variation in human milk and the influencing factors can provide insights to guide the diets of lactating mothers. The colostrum milk (CM, 0–5 d), transitional milk (TM, 10–15 d), and mature milk (MM1, 40–45 d) were collected as longitudinal study. Additionally, late term mature milk (MM2, 200–240 d; MM3, 300–400 d) were collected as the cross-sectional study. The human milk free nucleotides, including cytidine monophosphate (CMP), uridine monophosphate (UMP), guanosine monophosphate (GMP), and adenosine monophosphate (AMP), were assessed using High Performance Liquid Chromatography (HPLC), and the total potentially available nucleosides (TPAN) were calculated. The food frequency questionnaire (FFQ) was used to investigate the types and quantities of food consumed by lactating mothers. Principal component analysis (PCA) was then employed to identify their dietary patterns. The interaction of dietary patterns and lactation time on the levels of nucleotides was analyzed by factorial analysis. The levels of nucleotides in breast milk varied throughout the period of lactation. GMP and AMP decreased over time, while UMP, CMP, and TPAN decreased in the TM stage and then increased in the MM1 stage. Factorial analysis showed that lactation time affected all human milk nucleotides and an interaction of lactation time and dietary pattern could be observed on GMP and AMP. Further analysis indicated that dietary patterns influenced nucleotides during the late term mature milk stages (MM2 and MM3), while nucleotides in CM were not influenced by diet. Mothers who consumed the Beans-Nuts dietary pattern exhibited the highest nucleotides in their mature milk, followed by those who consumed the Potato-Vegetable dietary pattern. The levels of nucleotides in human milk are influenced by both the stage of lactation and maternal dietary patterns.
背景:核苷酸在婴儿的生长发育中起着至关重要的作用。研究母乳中核苷酸变化的动态及其影响因素可以为指导哺乳期母亲的饮食提供指导。方法:收集初乳(CM, 0 ~ 5d)、过渡乳(TM, 10 ~ 15d)和成熟乳(MM1, 40 ~ 45d)进行纵向研究。此外,收集晚期成熟乳(MM2, 200-240d; MM3, 300-400d)作为横断面研究。采用高效液相色谱法(HPLC)测定人乳游离核苷酸,包括单磷酸胞苷(CMP)、单磷酸尿苷(UMP)、单磷酸鸟苷(GMP)和单磷酸腺苷(AMP),并计算总潜在有效核苷(TPAN)。采用食物频率调查问卷(FFQ)对哺乳期母亲所食用的食物种类和数量进行调查。然后采用主成分分析(PCA)确定其饮食模式。通过因子分析分析饮食模式和哺乳时间对核苷酸水平的相互作用。结果:母乳中核苷酸的水平在整个哺乳期变化。随着时间的推移,GMP和AMP降低,而UMP、CMP和TPAN在TM期降低,然后在MM1期升高。析因分析显示,哺乳时间影响所有乳汁核苷酸,并且在GMP和AMP上观察到哺乳时间和饲粮模式的相互作用。进一步分析表明,饲粮模式影响晚期成熟乳期(MM2和MM3)的核苷酸,而CM中的核苷酸不受饲粮的影响。食用豆类-坚果饮食模式的母亲在成熟乳中显示出最高的核苷酸,其次是食用土豆-蔬菜饮食模式的母亲。结论:母乳中核苷酸水平受哺乳期和母体饮食模式的影响。试验注册:本研究已在中国临床试验注册中心注册(ChiCTR1800015387)。
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引用次数: 0
Metabolomics identifies riboflavin as a therapeutic agent for acute pancreatitis 代谢组学鉴定核黄素作为急性胰腺炎的治疗剂。
IF 4.9 2区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-12-04 DOI: 10.1016/j.jnutbio.2025.110225
Yuxin Shi , Jie Peng
Acute pancreatitis (AP) is a self-limiting inflammatory disorder, but severe cases can lead to persistent organ failure with high mortality. Metabolic dysregulation and inflammatory activation play critical roles in AP pathogenesis, highlighting the metabolic-inflammation crosstalk as a potential therapeutic target. Although riboflavin, an essential water-soluble vitamin, has been implicated in modulating disease processes, its role in AP remains unclear. In this study, untargeted metabolomics identified significant riboflavin downregulation in an AP mouse model. Subsequent in vivo experiments demonstrated that riboflavin intervention (25, 50, and 100 mg/kg) ameliorated pancreatic injury and systemic inflammation, with 50 mg/kg exhibiting optimal efficacy. Targeted metabolomics revealed elevated acetate levels following riboflavin supplementation. At the same time, transcriptomic and molecular biology assays showed riboflavin-mediated downregulation of HDAC3, a key acetate downstream target, and suppression of NF-κB pathway activation. In vitro, riboflavin and acetate mitigated pancreatic acinar cell damage, including apoptosis and necrosis, and inhibited NF-κB signaling. Rescue experiments using the HDAC3 inhibitor RGFP966 further provided pharmacological evidence for a mechanistic link between the acetate-HDAC3 axis and riboflavin’s protective effects. Collectively, these findings reveal that riboflavin alleviates AP, and its effect is associated with the modulation of the acetate-HDAC3 axis, offering a novel therapeutic strategy for this condition.
急性胰腺炎(AP)是一种自限性炎症性疾病,但严重的病例可导致持续的器官衰竭,死亡率高。代谢失调和炎症激活在AP发病机制中起关键作用,强调代谢-炎症串扰是潜在的治疗靶点。尽管核黄素(一种必需的水溶性维生素)与调节疾病过程有关,但其在AP中的作用仍不清楚。在这项研究中,非靶向代谢组学在AP小鼠模型中发现了显著的核黄素下调。随后的体内实验表明,核黄素干预(25、50和100 mg/kg)可改善胰腺损伤和全身性炎症,其中50 mg/kg的效果最佳。靶向代谢组学显示,补充核黄素后,乙酸水平升高。同时,转录组学和分子生物学分析显示,核黄素介导的HDAC3(醋酸盐下游关键靶点)下调,并抑制NF-κB通路的激活。核黄素和醋酸酯可减轻胰腺腺泡细胞凋亡、坏死等损伤,抑制NF-κB信号传导。利用HDAC3抑制剂RGFP966进行的救援实验进一步为醋酸酯-HDAC3轴与核黄素的保护作用之间的机制联系提供了药理学证据。总的来说,这些发现表明核黄素缓解AP,其作用与醋酸酯- hdac3轴的调节有关,为这种疾病提供了一种新的治疗策略。
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引用次数: 0
Pre-but not post-natal nutritional restriction promotes mammary development 产前而非产后营养限制促进乳房发育。
IF 4.9 2区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-12-04 DOI: 10.1016/j.jnutbio.2025.110226
Xusheng Dong, Qiuling Hou, Yingyu Mu, Xueyan Lin, Zhiyong Hu, Yun Wang, Yizhao Shen, Zhonghua Wang
The mammary gland undergoes continuous growth, differentiation, and cyclical remodeling throughout the whole life, with morphogenesis from the embryonic stage to adulthood being crucial and highly sensitive to nutritional supply. While moderate nutritional restriction in early life and subsequent restore can promote the tissues development such as muscle, its effects on the mammary remain largely unexplored and appear to depend critically on the development stage. Thus, the effects of moderated nutritional restriction in early life including embryonic (ER), suckling (SR), or pubertal (PR) periods on mammary development and subsequent lactation performance in mice were investigated in the present study. In this study, we imposed nutritional restriction on mice during either a single period or two periods. Mammary gland and serum samples were collected at maturity (56 d) and on lactation day 15 for hormonal, histological, and transcriptomic analyses. Our results demonstrate that ER enhances mammary development and adult lactation capacity by boosting proliferative activity and increasing the mammary stem cell content. In contrast, postnatal nutritional restrictions (SR and PR) disrupt normal gland morphogenesis by attenuating hormonal signaling responses and reducing stromal tissue remodeling. Notably, the adverse effects of SR on mammary morphology are reversible upon nutritional repletion, with no subsequent impact on milk production, whereas PR leads to a significant impairment in adult lactation. These findings reveal distinct regulatory mechanisms of nutritional intervention at various development stages and provide a foundational basis for optimizing lactational outcomes through targeted nutritional strategies.
乳腺在一生中经历着持续的生长、分化和周期性的重塑,其中从胚胎期到成年期的形态发生至关重要,对营养供应高度敏感。虽然生命早期适度的营养限制和随后的恢复可以促进肌肉等组织的发育,但其对乳房的影响在很大程度上仍未被探索,似乎主要取决于发育阶段。因此,本研究探讨了生命早期包括胚胎期(ER)、哺乳期(SR)或发育期(PR)的适度营养限制对小鼠乳腺发育和随后的泌乳性能的影响。在这项研究中,我们在一段时间或两段时间内对小鼠进行营养限制。在成熟(56天)和哺乳第15天采集乳腺和血清样本,进行激素、组织学和转录组学分析。我们的研究结果表明,内质网通过促进增殖活性和增加乳腺干细胞含量来促进乳腺发育和成人泌乳能力。相反,产后营养限制(SR和PR)通过减弱激素信号反应和减少基质组织重塑来破坏正常的腺体形态发生。值得注意的是,SR对乳腺形态的不良影响在营养补充后是可逆的,不会对产奶量产生后续影响,而PR会对成人泌乳产生重大损害。这些发现揭示了不同发育阶段营养干预的不同调控机制,并为通过有针对性的营养策略优化哺乳结果提供了基础依据。
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Journal of Nutritional Biochemistry
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