卡路里限制部分减轻了由病毒模仿性多I:C诱导的疾病行为
Simone N De Luca1, Leah Kivivali2, Ken Chong2
1School of Psychology & Public Health, La Trobe University, Melbourne, VIC, Australia; Centre for Respiratory Science & Health, School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia.
Behavioural brain research
|October 14, 2023
概括
卡路里限制 (CR) 部分降低了由病毒免疫挑战引起的发烧和疾病行为. 这一发现表明CR.
科学领域:
- 免疫学 免疫学 免疫学
- 神经科学是一个神经科学.
- 老年学是指老年学的学科.
背景情况:
- 已知卡路里限制 (CR) 可以延长寿命并减轻脂多糖 (LPS) 诱导的疾病行为.
- CR调节了促炎和抗炎的特征.
- 对CR对病毒模仿诱导反应的影响仍未得到充分研究.
研究的目的:
- 为了研究CR对发烧和病态行为所产生的CR的影响,由病毒模仿物聚氨酸:聚乙酸 (聚I:C) 诱导.
- 为了确定CR是否减弱了对多I:C的神经炎症反应.
主要方法:
- 在28天内,小鼠接受了50%的CR.
- 使用聚I:C (5000μg/kg) 诱导病毒免疫挑战.
- 测量了核心体温 (Tb),运动运动活动和微质密度.
主要成果:
- 部分减弱CR聚I:C引起的发烧和生病行为.
- 对照小鼠显示2.02°C Tb增加,而CR小鼠显示0.94°C Tb增加.
- 脑下垂体中CR降低了微质密度,表明中度的神经炎症衰减.
结论:
- 卡路里限制部分减轻了对病毒免疫挑战的发烧和疾病反应.
- CR的抗炎作用可能是其对病毒模拟剂的保护作用的基础.
- 需要进一步的研究来阐明所涉及的精确机制.
更多相关视频
05:28A Chronic Immobilization Stress Protocol for Inducing Depression-Like Behavior in Mice
Published on: May 15, 2019
22.3K
09:09Generating a Reproducible Model of Mid-Gestational Maternal Immune Activation using PolyI:C to Study Susceptibility and Resilience in Offspring
Published on: August 17, 2022
1.7K
相关概念视频
Cardiomyopathy IV: Restrictive Cardiomyopathy
Restrictive cardiomyopathy (RCM) is a rare heart muscle disease characterized by impaired ventricular filling due to stiffened ventricular walls, leading to significant diastolic dysfunction.EtiologyRestrictive cardiomyopathy can arise from both inherited and acquired diseases, many of which are systemic. It is categorized into four main types: infiltrative, storage, non-infiltrative, and endomyocardial diseases.Infiltrative diseases, such as amyloidosis, lead to RCM by depositing amyloid...
Subviral Agents
Subviral agents are infectious entities that resemble viruses but lack one or more viral components, such as a capsid or essential replication machinery. These agents include viroids, prions, and satellites, each possessing distinct structural and functional characteristics that influence their mode of infection and replication.Viroids are the simplest subviral agents, consisting of circular, single-stranded RNA molecules without a protein coat. They exclusively infect plants, relying entirely...
Inhibitors Of Virion Release
Viral replication and dissemination rely on efficient mechanisms for host cell entry, genome replication, assembly, and release. Influenza viruses, such as types A and B, are negative-sense single-stranded RNA viruses with a segmented genome, that depend on two critical surface glycoproteins to carry out these processes: hemagglutinin (HA) and neuraminidase (NA). HA initiates infection by binding to sialic acid residues on the surface of host epithelial cells, facilitating receptor-mediated...
