相关实验视频
Updated: Jul 15, 2026

09:55
Monitoring Acupuncture Effects on Human Brain by fMRI
Published on: April 8, 2010
15.3K
预防性针在关节置换术后老年患者认知功能上的影响:一项随机对照试验
Qiguo Tu1, Rong Zhou1, Guiping Lv2
1Department of Anesthesiology, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China.
Frontiers in medicine
|April 4, 2025
概括
针改善了关节置换患者的认知功能,并减少了术后认知功能障碍. 这种干预可以调节miR-124和miR-146a,抑制神经炎症并保护认知能力.
科学领域:
- 老年医学 老年医学
- 神经外科 神经外科
- 综合医学是一个整体的医学.
背景情况:
- 手术后认知功能障碍 (POCD) 是大骨科手术后老年患者经常出现的并发症.
- 在POCD背后的精确机制仍然不完全理解.
研究的目的:
- 评估预防性针在关节置换手术后减轻认知功能障碍的疗效.
- 调查针可能产生神经保护作用的潜在机制.
主要方法:
- 一项随机对照试验涉及54名接受关节置换的参与者,分别被分配到针或假针组.
- 用蒙特利尔认知评估 (MoCA) 和迷你心理状态检查 (MMSE) 评分来评估认知功能.
- 测量了微RNA (miR) -124,miR-146a和炎症性细胞因子 (TNF-α,IL-6,IL-1β) 的周围血液水平.
主要成果:
- 与假药组相比,针组的MMSE和MoCA得分显著更高,POCD发病率更低.
- 针治疗导致miR-124和miR-146a水平增加,TNF-α,IL-6和IL-1β水平降低.
- 相关性分析显示,升高的miR-124和miR-146a水平与降低的炎症性细胞因子度之间存在关联.
结论:
- 预防性针在接受关节置换的老年患者中对术后认知功能产生保护作用.
- 针可以通过调节miR-124和miR-146a来抑制神经炎症来降低POCD的发生率.
相关概念视频
Drug Dosing: Geriatric Patients
Elderly individuals encompass a diverse population with varying degrees of age-related physiological changes. Defining the elderly presents challenges, as the geriatric population is often arbitrarily categorized as individuals older than 65. However, many individuals in this group lead active and healthy lives, with an increasing number surpassing 85 years and falling into the older elderly category. Physiological changes associated with aging impact performance capacity and homeostatic...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption
As individuals age, their body's physiology evolves, affecting drug pharmacokinetics. The most apparent changes occur in the gastrointestinal tract, where an increase in gastric pH, a delay in gastric emptying, and a reduction in gastrointestinal motility are observed. Remarkably, these changes do not substantially modify the absorption of orally administered drugs, particularly those absorbed via passive diffusion.Transdermal drug delivery emerges as a highly viable method for older adults due...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution
Drug distribution in the human body is influenced by several factors, including plasma protein concentration, body composition, blood flow, tissue-protein concentration, and tissue fluid pH. Among these, changes in plasma protein concentration and body composition due to aging significantly affect how drugs are distributed within the body. Specifically, aging is associated with a decrease in albumin levels by about 10% and an increase in α1-acid glycoprotein levels. These alterations are not...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism
Geriatric patients show significant variation in how their bodies process medications, which can change how effective and safe treatments are. The liver is the primary organ where drug metabolism occurs, involving two main types of chemical reactions: phase I and II. Phase I metabolism is driven by the cytochrome P450 enzyme system, which includes key types such as CYP3A, CYP2D6, and CYP2C9. Research indicates that while aging doesn't notably alter the levels or activity of these enzymes, it...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion
In geriatric patients, renal physiology undergoes significant changes, including diminished renal blood flow and a lower glomerular filtration rate (GFR), leading to alterations in medication clearance. Drugs such as aminoglycoside antibiotics, lithium, and digoxin, which rely on glomerular filtration for removal from the body, particularly impact pharmacokinetics. These drugs tend to have slower clearance rates in older adults, necessitating careful dosage considerations.Evaluation of renal...
Pharmacodynamics in Geriatric Patients: Effects of Age
Age-related pharmacokinetic changes are extensively documented, but understanding age-related pharmacodynamic alterations is relatively limited. This knowledge gap can be partly attributed to the complexity of developing appropriate measures of drug responses compared to bioanalytical methods for determining drug concentrations.Most information regarding age-related differences in human pharmacodynamics originates from cross-sectional studies. However, these studies assume that observed mean...

