搜索到5860篇“ HOMEOSTASIS“的相关文章
表观代谢调控——中医药调控人体稳态研究的新方向
2024年
代谢稳态是机体重要的平衡体系,包括物质合成平衡、能量代谢平衡。表观代谢物为一种脱离经典功能的代谢物,由经典代谢物在酶错误或化学损伤情况下,发生简单的、可逆转的结构修饰而生成,这种修饰反应参与多种疾病过程之中。因而,经典代谢物与表观代谢物之间的修饰/脱修饰反应可以看作是机体一种新的代谢稳态。调控表观代谢稳态可能是中医药治疗机制中的重要环节,而发展中医药表观代谢调控理论的困难主要在于方法学。表观代谢调控在现代医学研究中仍是一个新课题,缺乏完善的研究体系,虽然有些质谱数据库涵盖了表观代谢产物,但这些信息多是基于结构预测,缺乏实验证实,目前也没有可获得的标准品进行结构确证。同时,表观代谢产物往往浓度极低,如何提高检测方法的灵敏度也亟待解决。因此,构建系统的中医药表观代谢调控研究策略应该包括以下方面:(1)完善表观代谢产物质谱数据库,以便能够在非靶向代谢组学方法中找到中医药调控的表观代谢标记物。(2)为了提高检测灵敏度,可以通过合成和结构修饰的方法得到目标表观代谢产物,构建靶向代谢组学方法,或者基于非靶向代谢物鉴定结果,建立拟靶向分析方法。(3)通过结合转录组学、蛋白组学或生物信息学手段,分析中医药表观代谢调控的分子网络,定位关键调节酶,进而确定其作用靶点。
刘新光谢洋谢洋
关键词:中医整体观脂质代谢程序性死亡血管扩张
The role of snapin in regulation of brain homeostasis
2024年
Brain homeostasis refe rs to the normal working state of the brain in a certain period,which is impo rtant for overall health and normal life activities.Currently,there is a lack of effective treatment methods for the adverse consequences caused by brain homeostasis imbalance.Snapin is a protein that assists in the formation of neuronal synapses and plays a crucial role in the normal growth and development of synapses.Recently,many researchers have reported the association between snapin and neurologic and psychiatric disorders,demonstrating that snapin can improve brain homeostasis.Clinical manifestations of brain disease often involve imbalances in brain homeostasis and may lead to neurological and behavioral sequelae.This article aims to explo re the role of snapin in restoring brain homeostasis after injury or diseases,highlighting its significance in maintaining brain homeostasis and treating brain diseases.Additionally,it comprehensively discusses the implications of snapin in other extracerebral diseases such as diabetes and viral infections,with the objective of determining the clinical potential of snapin in maintaining brain homeostasis.
Jiawen LiXinqi HuangYumei AnXueshi ChenYiyang ChenMingyuan XuHaiyan ShanMingyang Zhang
关键词:DIABETES
Latest assessment methods for mitochondrial homeostasis in cognitive diseases被引量:2
2024年
Mitochondria play an essential role in neural function,such as supporting normal energy metabolism,regulating reactive oxygen species,buffering physiological calcium loads,and maintaining the balance of morphology,subcellular distribution,and overall health through mitochondrial dynamics.Given the recent technological advances in the assessment of mitochondrial structure and functions,mitochondrial dysfunction has been regarded as the early and key pathophysiological mechanism of cognitive disorders such as Alzheimer’s disease,Parkinson’s disease,Huntington’s disease,mild cognitive impairment,and postoperative cognitive dysfunction.This review will focus on the recent advances in mitochondrial medicine and research methodology in the field of cognitive sciences,from the perspectives of energy metabolism,oxidative stress,calcium homeostasis,and mitochondrial dynamics(including fission-fusion,transport,and mitophagy).
Wei YouYue LiKaixi LiuXinning MiYitong LiXiangyang GuoZhengqian Li
关键词:MITOPHAGY
Norepinephrine-Astrocyte Signaling Regulates Cortical State Homeostasis
2024年
Cortical states such as high and low arousal during wakefulness or rapid eye movement(REM)and non-REM(NREM)phases of sleep are fundamental biological processes that are highly conserved across species.An intricate balance or homeostasis of cortical states during wakefulness or sleep is necessary for an organism's survival and well-being.
Yulan LiLixuan LiYibei WangXinyi LiZhong Chen
关键词:HOMEOSTASISNREMSTASIS
铜蓝蛋白在脂质代谢稳态调控中作用的研究进展
2024年
血浆铜蓝蛋白(ceruloplasmin,Cp)是肝脏分泌的重要蛋白质,在人体的铜离子分布和运输中扮演关键角色,并在维持铜离子稳态方面起重要作用。此外,Cp还是一种亚铁氧化酶,参与人体内铁离子的代谢。研究表明,Cp与糖尿病和心血管疾病等代谢相关疾病有密切关系。近来研究发现,Cp也参与脂质代谢的调控过程。脂质代谢平衡涉及体内脂质合成、脂肪水解、脂肪酸氧化、脂质运输和吸收等过程。脂质代谢紊乱会导致人体代谢紊乱和心血管并发症的发生。Cp通过多种方式调控脂质代谢。一方面,它通过亚铁氧化酶活性参与调节氧化应激,即在铁代谢和氧化还原反应中发挥作用。另一方面,它通过铜及含铜的代谢酶参与胆固醇、脂蛋白和脂肪酸等物质代谢过程的调控。因此,Cp通过影响铜或铁依赖性酶和相关通路在铜和铁的稳态中发挥作用进而调控脂质代谢。尽管已经发现Cp与脂质代谢密切关联的现象,但仍需要进一步研究Cp进行脂质代谢调控的确切机制。该综述总结了Cp在脂质代谢中的作用及其研究进展,以期为脂质代谢紊乱相关疾病的研究和治疗提供新的思路。
江全鑫陈素贞刘军力
关键词:铜蓝蛋白脂质代谢代谢性疾病
Apoer2/Lrp8:the undercover cop of synaptic homeostasis
2024年
Apolipoprotein E receptor 2(ApoER2)is a receptor for the protein ApoE,the most common genetic risk factor for late-onset Alzheimer's disease(AD).It is also a key modulator of syna ptic homeostasis,in part through its effect on the expression of neuronal genes including those implicated in AD and other neuropsychiatric disorders.In this perspective,we highlight several genes affected by ApoER2 and its alternatively spliced forms and how aberrant expression can be rescued by the reintroduction of the ApoER2 intracellular domain in the mouse hippocampus.
Gordon C.WerthmannJoachim Herz
关键词:HOMEOSTASISAPOEALZHEIMER
Diverse functions of sox9 in liver development and homeostasis and hepatobiliary diseases
2024年
The liver is the central organ for digestion and detoxification and has unique metabolic and regenerative capacities.The hepatobiliary system originates from the foregut endoderm,in which cells undergo multiple events of cell proliferation,migration,and differentiation to form the liver parenchyma and ductal system under the hierarchical regulation of transcription factors.Studies on liver development and diseases have revealed that SRY-related high-mobility group box 9(SOx9)plays an important role in liver embryogenesis and the progression of hepatobiliary diseases.sox9 is not only a master regulator of cell fate determination and tissue morphogenesis,but also regulates various biological features of cancer,including cancer stemness,invasion,and drug resistance,making Sox9 a potential biomarker for tumor prognosis and progression.This review systematically summarizes the latest findings of sox9 in hepatobiliary development,homeostasis,and disease.We also highlight the value of sox9 as a novel biomarker and potential target for the clinical treatment of major liverdiseases.
Taiyu ShangTianyi JiangXiaowen CuiYufei PanXiaofan FengLiwei DongHongyang Wang
关键词:CANCERHOMEOSTASISSOX9
Suppression of ITPKB degradation by Trim25 confers TMZ resistance in glioblastoma through ROS homeostasis
2024年
Temozolomide(TMZ)represents a standard-of-care chemotherapeutic agent in glioblastoma(GBM).However,the development of drug resistance constitutes a significant hurdle in the treatment of malignant glioma.Although specific innovative approaches,such as immunotherapy,have shown favorable clinical outcomes,the inherent invasiveness of most gliomas continues to make them challenging to treat.Consequently,there is an urgent need to identify effective therapeutic targets for gliomas to overcome chemoresistance and facilitate drug development.This investigation used mass spectrometry to examine the proteomic profiles of six pairs of GBM patients who underwent standard-of-care treatment and surgery for both primary and recurrent tumors.A total of 648 proteins exhibiting significant differential expression were identified.Gene Set Enrichment Analysis(GSEA)unveiled notable alterations in pathways related to METABOLISM_OF_LIPIDS and BIOLOGICAL_OXIDATIONS between the primary and recurrent groups.Validation through glioma tissue arrays and the Xiangya cohort confirmed substantial upregulation of inositol 1,4,5-triphosphate(IP3)kinase B(ITPKB)in the recurrence group,correlating with poor survival in glioma patients.In TMZ-resistant cells,the depletion of ITPKB led to an increase in reactive oxygen species(ROS)related to NADPH oxidase(NOX)activity and restored cell sensitivity to TMz.Mechanistically,the decreased phosphorylation of the E3 ligase Trim25 at the S100 position in recurrent GBM samples accounted for the weakened ITPKB ubiquitination.This,in turn,elevated ITPKB stability and impaired ROS production.Furthermore,ITPKB depletion or the ITPKB inhibitor GNF362 effectively overcome TMZ chemoresistance in a glioma xenograft mouse model.These findings reveal a novel mechanism underlying TMZ resistance and propose ITPKB as a promising therapeutic target forTMZ-resistant GBM.
Yuanliang YanShangjun ZhouXi ChenQiaoli YiSongshan FengZijin ZhaoYuanhong LiuQiuju LiangZhijie XuZhi LiLunquan Sun
关键词:TMZHOMEOSTASISIMPAIRED
DGK5-mediated phosphatidic acid homeostasis interplays with reactive oxygen species in plant immune signaling
2024年
Plants have evolved a complex innate immune system that deploys two interconnected receptor layers to detect the invasion of various pathogens.Cell surface-resident pattern recognition receptors(PRRs)perceive pathogen-or microbeassociated molecular patterns(PAMPs/MAMPs),initiating a basal defense response called pattern-triggered immunity(PTI)(Zhou and Zhang,2020).
Dian WangMinhang YuanYamei ZhuangXiu-Fang XinGuang Qi
关键词:PATTERNHOMEOSTASISIMMUNITY
DEAD-box helicase 17(DDX17)protects cardiac function by promoting mitochondrial homeostasis in heart failure
2024年
DEAD-box helicase 17(DDX17)is a typical member of the DEAD-box family with transcriptional cofactor activity.Although DDX17 is abundantly expressed in the myocardium,its role in heart is not fully understood.We generated cardiomyocyte-specific Ddx17-knockout mice(Ddx17-cKO),cardiomyocyte-specific Ddx17 transgenic mice(Ddx17-Tg),and various models of cardiomyocyte injury and heart failure(HF).DDX17 is downregulated in the myocardium of mouse models of heart failure and cardiomyocyte injury.Cardiomyocyte-specific knockout of Ddx17 promotes autophagic flux blockage and cardiomyocyte apoptosis,leading to progressive cardiac dysfunction,maladaptive remodeling and progression to heart failure.Restoration of DDX17 expression in cardiomyocytes protects cardiac function under pathological conditions.Further studies showed that DDX17 can bind to the transcriptional repressor B-cell lymphoma 6(BCL6)and inhibit the expression of dynamin-related protein 1(DRP1).When DDX17 expression is reduced,transcriptional repression of BCL6 is attenuated,leading to increased DRP1 expression and mitochondrial fission,which in turn leads to impaired mitochondrial homeostasis and heart failure.We also investigated the correlation of DDX17 expression with cardiac function and DRP1 expression in myocardial biopsy samples from patients with heart failure.These findings suggest that DDX17 protects cardiac function by promoting mitochondrial homeostasis through the BCL6-DRP1 pathway in heart failure.
Mingjing YanJunpeng GaoMing LanQue WangYuan CaoYuxuan ZhengYao YangWenlin LiXiaoxue YuXiuqing HuangLin DouBing LiuJunmeng LiuHongqiang ChengKunfu OuyangKun XuShenghui SunJin LiuWeiqing TangXiyue ZhangYong ManLiang SunJianping CaiQing HeFuchou TangJian LiTao Shen
关键词:HOMEOSTASIS

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