基础科学和病原发生学
1Mohanlal Sukhadia University, Udaipur, Rajasthan, India.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 23, 2025
概括
胺 (Mel) 和D-银糖 (DG) 加快神经元衰老和细胞死亡. 联合暴露会加剧神经毒性,增加老年人神经退行性疾病的风险.
科学领域:
- 神经科学是一个神经科学.
- 毒理学 毒理学 毒理学
- 衰老研究研究 衰老研究
背景情况:
- 饮食中的化合物和生态毒性物质显著影响衰老过程.
- 胺 (Mel) 是一种食品改剂,在包括大脑在内的各种器官中表现出毒性.
- 梅尔对老化神经元的神经毒性影响尚未得到充分了解.
研究的目的:
- 研究胺 (Mel) 对老化神经细胞的体外神经毒性影响.
- 在神经元衰老模型中评估胺 (Mel) 和D-银糖 (DG) 的综合神经毒性作用.
主要方法:
- 治疗SH-SY5Y神经细胞时使用了美胺 (Mel),D-银糖 (DG) 或两者.
- 评估了细胞活力 (MTT试验),神经元长度,抗氧化状态 (CAT,SOD),活性氧物种 (ROS),线粒体膜潜力 (MMP) 和酶-3 (Casp3) 活性.
主要成果:
- 联合胺 (Mel) 和D-银糖 (DG) 治疗诱导的细胞死亡明显高于单独治疗.
- 同时暴露导致神经细胞收缩,ROS增加,抗氧化剂水平降低 (SOD,CAT),和升高的caspase-3活性,表明放大神经毒性和亡.
结论:
- 在一个衰老的神经细胞模型中,胺 (Mel) 加剧了神经毒性.
- 在老年人群中,饮食中摄入胺 (Mel) 可能会增加神经退行性疾病的风险,例如阿尔茨海默氏症和帕金森症.
相关概念视频
Infection
11.6K
When a pathogen enters the body and reproduces, it can cause an infection, damage body cells, and cause illness symptoms that eventually lead to disease. Therefore, its prevention requires breaking the chain of infection.
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
11.6K
Urinary Tract Infection II: Pathophysiology
524
The pathophysiology of urinary tract infections (UTIs) encompasses several progressive stages, beginning with bacterial colonization and culminating in potential systemic complications if untreated. UTIs are primarily initiated by bacteria, such as Escherichia coli, which often originate from the gastrointestinal tract and migrate to the urinary system through the periurethral area. This migration can occur via several routes, including improper hygiene practices, sexual activity, or...
524
Cystic Fibrosis: Pathogenesis
676
Cystic fibrosis (CF), an autosomal recessive disorder, significantly affects the function of exocrine glands. This genetically inherited disease is characterized by the production of thick and sticky mucus, which can severely affect various organs and systems in the body.
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation,...
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation,...
676
Pneumonia II: Pathophysiology
2.5K
The pathophysiology of pneumonia involves the following steps:
2.5K
Stages of Infection
64.7K
Stages of infection describe what happens to a susceptible host once a pathogen invades the human body. The stages of infection are incubation, prodromal, illness, stage of decline, and convalescence. The incubation stage is the period from exposure to a pathogen until symptoms start. The infected person is unaware of impending illness as the pathogens grow and multiply within the body. The duration may vary depending on the type of infection. The incubation period of measles averages ten to...
64.7K
Defense Against Bacterial Pathogens
2.6K
The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
2.6K


