在肌痛性脑炎/慢性疲劳综合征中降低血管压力
Helena M Huhmar1, Lauri S Soinne2, Bo Christer Bertilson3
1Bragée ME/CFS Center, Stockholm, Sweden.
概括
患有肌痛性脑筋炎/慢性疲劳综合征 (ME/CFS) 的患者经常表现出低血压素 (VP) 水平,模仿中央糖尿病无味症. 这表明一种潜在的机制有助于ME/CFS症状,比如异常的水平衡.
科学领域:
- 内分泌学 在内分泌学.
- 腎臟病學 (nephrology) 是一種醫學專業.
- 神经学 神经学
背景情况:
- 肌痛性脑筋炎/慢性疲劳综合征 (ME/CFS) 呈现复杂的症状,包括静态不耐受,水平衡异常和低血压.
- 许多ME/CFS患者报告了多尿多症,这表明水平衡调节存在潜在问题.
研究的目的:
- 通过测量血和尿液度 (P-Osm,U-Osm) 和血管压素 (P-VP) 或素水平来研究ME/CFS中的水平衡.
- 确定血管压素功能的减少是否有助于ME/CFS的病理生理学.
主要方法:
- 通过国际共识标准诊断出111名ME/CFS患者的观察性研究.
- 测量包括P-Osm,U-Osm和P-VP在一夜禁食和缺水后.
- 在一小部分患者中评估了可佩丁水平;还进行了脑部MRI和血液化学分析.
主要成果:
- 在57.3%的患者中,P-Osm (>292 mOsm/kg) 升高,在66.1%的患者中,U-Osm低 (<750 mOsm/kg).
- 82.0%的患者没有检测到P-VP (<1.6 pg/mL),只有9.9%的患者的P-VP相对于P-Osm正常.
- 科佩的水平一般低至正常;没有发现显著的下丘脑或低细胞病理.
结论:
- 在ME/CFS中建议慢性降压素 (VP) 调节.
- 这种VP缺陷模仿了中央无味糖尿病,可能是疾病的关键机制.
- 这一发现提供了一个可测量的成分,有助于关键的ME/CFS症状.
相关概念视频
Myasthenia Gravis: Diagnostic Tests
1.8K
Myasthenia gravis is an autoimmune condition affecting neuromuscular transmission, causing generalized weakness in skeletal muscles. Initial diagnoses rely on patients' signs, symptoms, and medical history. The challenge lies in distinguishing myasthenia from other muscular dystrophies. An important diagnostic feature is the significant improvement of symptoms after administering anticholinesterase inhibitors.
The edrophonium test is a diagnostic tool for myasthenia gravis. It involves...
The edrophonium test is a diagnostic tool for myasthenia gravis. It involves...
1.8K
Myasthenia Gravis: Overview and Treatment
2.7K
Myasthenia gravis is a neuromuscular transmission disorder characterized by weakness and increased fatigability of skeletal muscles. It is an autoimmune disease affecting approximately one in 2000 people, where antibodies against the α1 subunit of nicotinic acetylcholine receptors are produced.
These antibodies interfere with the function of the nicotinic receptors in three ways: by binding to the receptor and disrupting acetylcholine binding; by causing cross-linking of receptors which...
These antibodies interfere with the function of the nicotinic receptors in three ways: by binding to the receptor and disrupting acetylcholine binding; by causing cross-linking of receptors which...
2.7K
Muscle Recovery and Fatigue
3.9K
Muscle fatigue refers to the decline in a muscle's ability to maintain the force of contraction after prolonged activity. It primarily stems from changes within muscle fibers. Even before experiencing muscle fatigue, one may feel tired and have the urge to stop the activity. This response, known as central fatigue, occurs due to changes in the central nervous system, namely the brain and spinal cord. While there is no single mechanism that induces fatigue, it may serve as a protective...
3.9K
Chemical Synapses
11.1K
Chemical synapses are specialized sites between two neurons or between a neuron and a non-neuronal cell like a muscle, glandular or sensory cell.
Because chemical synapses depend on the release of neurotransmitter molecules from synaptic vesicles to pass on their signal, there is an approximately one millisecond delay between when the axon potential reaches the presynaptic terminal and when the neurotransmitter leads to opening of postsynaptic ion channels. Additionally, this signaling is...
Because chemical synapses depend on the release of neurotransmitter molecules from synaptic vesicles to pass on their signal, there is an approximately one millisecond delay between when the axon potential reaches the presynaptic terminal and when the neurotransmitter leads to opening of postsynaptic ion channels. Additionally, this signaling is...
11.1K
Chemical Synapses
4.2K
Chemical synapses are specialized sites between two neurons or between a neuron and a non-neuronal cell like a muscle, glandular or sensory cell.
Because chemical synapses depend on the release of neurotransmitter molecules from synaptic vesicles to pass on their signal, there is an approximately one millisecond delay between when the axon potential reaches the presynaptic terminal and when the neurotransmitter leads to opening of postsynaptic ion channels. Additionally, this signaling is...
Because chemical synapses depend on the release of neurotransmitter molecules from synaptic vesicles to pass on their signal, there is an approximately one millisecond delay between when the axon potential reaches the presynaptic terminal and when the neurotransmitter leads to opening of postsynaptic ion channels. Additionally, this signaling is...
4.2K
Myocarditis III: Medical Management
155
Myocarditis: Comprehensive Medical ManagementMyocarditis, the heart muscle inflammation, requires a comprehensive medical management strategy that addresses the underlying cause, provides supportive care, manages symptoms, and reduces cardiac workload.Infections and Autoimmune CausesAdminister appropriate antimicrobial therapy when an infectious agent causes myocarditis. For instance, penicillin treats infections caused by Group A Streptococcus. In cases where autoimmune processes are...
155


