相关实验视频
Updated: Jul 27, 2025

08:18
Preparation of Naringenin Solution for In Vivo Application
Published on: August 10, 2021
3.4K
纳林林通常通过hormesis作用.
Edward J Calabrese1, Peter Pressman2, A Wallace Hayes3
1Department of Environmental Health Sciences, Morrill I, N344, University of Massachusetts, Amherst, MA 01003, USA.
The Science of the total environment
|June 9, 2023
概括
纳林因和纳林根因通过hormesis表现出保护作用,这是对压力的有益生物反应. 这些化合物激活Nrf2,增强细胞对毒素的抵抗力,并有助于各种疾病模型.
科学领域:
- 生物医学科学 生物医学科学
- 毒理学 毒理学 毒理学
- 细胞生物学 细胞生物学
背景情况:
- 霍尔梅西斯描述了低剂量的药物对高剂量有毒的有益作用.
- 纳林因及其代谢物纳林根因是具有潜在治疗功能的黄类化合物.
- 对于生物医学应用来说,了解它们的体温能力至关重要.
研究的目的:
- 进行第一个纳林根和纳林根因的 hormetic剂量反应的综合性评估.
- 在各种实验生物医学模型中评估它们的保护作用.
- 阐明潜在的分子机制,特别是Nrf2的作用.
主要方法:
- 对现有实验数据进行系统审查和综合评估.
- 在各种细胞类型和疾病模型中分析了涉及纳林根和纳林根的研究.
- 研究分子通路,包括激活核因子红色素2相关因子 (Nrf2).
主要成果:
- 纳林和纳灵宁通过激素机制持续诱导保护作用,表现出双相剂量反应关系.
- 最大的保护效果比对照组大30-60%.
- 在神经退行性疾病模型中观察到的好处,干细胞,心脏细胞以及对环境毒素 (UV,,) 的保护.
结论:
- 纳林因和纳林根因显示出显著的hormetic潜力,提供细胞保护和适应性反应.
- Nrf2的激活是调解这些抑制作用的关键机制,调节细胞对氧化剂的抵抗力.
- 这些发现凸显了纳林金和纳林金在生物医学研究中的治疗和毒理学意义.
相关概念视频
Transducer Mechanism: Nuclear Receptors
1.4K
Nuclear receptors, or NRs, are unique transcription factors that regulate gene transcription and affect the cellular pathways involved in reproduction, development, or metabolism. Their ability to be stimulated by small lipophilic ligands and control vital cellular processes makes them ideal drug targets. Nearly 10-15% of currently prescribed drugs target these receptors.
About 48 different soluble family members of nuclear receptors are identified that can be divided into two main classes:
About 48 different soluble family members of nuclear receptors are identified that can be divided into two main classes:
1.4K
NF-κB-dependent Signaling Pathway
7.5K
The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The...
NF-κB-dependent Signaling Mechanism
The...
7.5K
Phase I Reactions: Reductive Reactions
234
Phase I biotransformation reductive reactions are chemical processes that modify drugs by introducing or revealing polar functional groups via reduction. Enzymes called reductases catalyze these reactions, playing a pivotal role in drug metabolism by transforming lipophilic drugs into more polar, water-soluble metabolites for easy excretion. An essential type of reductive reaction is the carbonyl group reduction, where aldehydes and ketones are reduced to alcohols. An example is the...
234
Regulation of the Unfolded Protein Response
2.5K
Inositol-requiring kinase one or IRE1 is the most conserved eukaryotic unfolded protein response (UPR) receptor. It is a type I transmembrane protein kinase receptor with a distinctive site-specific RNase activity. As the binding mechanics of the misfolded proteins with the N-terminal domain of IRE-1 are unclear, three binding models — direct, indirect, and allosteric -- are proposed for receptor activation. Nevertheless, it is known that once a misfolded protein associates with IRE1, it...
2.5K
Role of Reduced Coenzymes NADH and FADH₂
11.9K
The energy released from the breakdown of the chemical bonds within nutrients can be stored either through the reduction of electron carriers or in the bonds of adenosine triphosphate (ATP). In living systems, a small class of compounds functions as mobile electron carriers, molecules that bind to and shuttle high-energy electrons between compounds in pathways. The principal electron carriers that will be considered originate from the B vitamin group and are derivatives of nucleotides; they are...
11.9K
Phase II Reactions: Miscellaneous Conjugation Reactions
87
Phase II biotransformations are detoxification mechanisms that conjugate xenobiotics with endogenous substances, neutralizing their toxicity.
A key example involves the conjugation of cyanide ions, which impair cellular respiration and alter hemoglobin into non-oxygen-carrying cyanmethemoglobin. To neutralize this threat, a sulfur atom from thiosulphate is transferred to the cyanide ion, catalyzed by the enzyme rhodanese, resulting in an inactive compound called thiocyanate. The production of...
A key example involves the conjugation of cyanide ions, which impair cellular respiration and alter hemoglobin into non-oxygen-carrying cyanmethemoglobin. To neutralize this threat, a sulfur atom from thiosulphate is transferred to the cyanide ion, catalyzed by the enzyme rhodanese, resulting in an inactive compound called thiocyanate. The production of...
87

