病毒后的嗅觉损失和帕洛斯米亚
Zhen Yu Liu1, Luigi Angelo Vaira2, Paolo Boscolo-Rizzo3
1Department of ENT Surgery, Royal Brisbane and Women's Hospital, Herston, QLD, Australia.
BMJ medicine
|October 16, 2023
概括
SARS-CoV-2 感染经常导致嗅觉功能障碍,包括嗅觉丧失和. 了解机制和探索治疗方法,如嗅觉训练,对于患者的康复至关重要.
科学领域:
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
- 神经科学是一个神经科学.
- 传染性疾病 传染性疾病
背景情况:
- SARS-CoV-2 感染是嗅觉功能障碍的主要原因,影响高达 50% 的个人.
- 这种功能障碍包括嗅觉丧失和帕洛斯米亚,这是令人痛苦的嗅觉扭曲,影响生活质量.
- 虽然早期的嗅觉丧失机制已被理解,但在病毒感染后持续的功能障碍和呼吸障碍需要进一步调查.
研究的目的:
- 在病毒后嗅觉功能障碍中将帕洛斯米亚置于背景中.
- 探索潜在的分子机制,潜在的持续的嗅觉功能障碍和parosmia.
- 审查嗅觉功能障碍的当前和潜在的治疗选择.
主要方法:
- 文献综述和对SARS-CoV-2和嗅觉功能障碍现有研究的综合.
- 分析拟议的分子机制,包括细胞变化和受体表达.
- 评估当前的治疗策略和研究缺口.
主要成果:
- 嗅觉功能障碍,特别是,是SARS-CoV-2感染的重要和令人痛苦的后果.
- 持续的嗅觉功能障碍的潜在机制包括神经元枯竭,炎症和受体表达的改变.
- 有效的治疗选择有限,嗅觉培训和支持性护理至关重要.
结论:
- 需要进一步的研究来阐明持续的嗅觉功能障碍和的确切机制.
- 目前,支持类固醇或补充剂等治疗方法的证据不足,以恢复嗅觉.
- 研究各种干预措施对定量嗅觉功能和帕洛斯米亚的有效性至关重要.
相关概念视频
Olfactory Receptors: Location and Structure
9.3K
The process of olfaction, also known as the sense of smell, is a sophisticated chemical response system. The specialized sensory neurons that facilitate this process, known as olfactory receptor neurons, are situated in an upper segment of the nasal cavity, known as the olfactory epithelium. Olfactory sensory neurons are bipolar, with their dendrites extending from the epithelium's apex into the mucus that lines the nasal cavity. Airborne molecules, when inhaled, traverse the olfactory...
9.3K
Olfaction
44.4K
The sense of smell is achieved through the activities of the olfactory system. It starts when an airborne odorant enters the nasal cavity and reaches olfactory epithelium (OE). The OE is protected by a thin layer of mucus, which also serves the purpose of dissolving more complex compounds into simpler chemical odorants. The size of the OE and the density of sensory neurons varies among species; in humans, the OE is only about 9-10 cm2.
The olfactory receptors are embedded in the cilia of the...
The olfactory receptors are embedded in the cilia of the...
44.4K
Physiology of Smell and Olfactory Pathway
8.6K
Humans detect odors with the help of specialized cells located in the upper part of the nasal cavity, called olfactory receptor neurons (ORNs). ORNs possess hair-like structures called cilia, which are receptive to sensations from the inhaled air. When an odorant molecule binds to a specific receptor on the cell of the cilia, it leads to a series of events that ultimately cause the ORN to send electrical signals to the olfactory bulb in the brain through the olfactory nerves.
The olfactory...
The olfactory...
8.6K
Prosopagnosia
188
Prosopagnosia, also known as face blindness, is the inability to recognize faces. In severe cases, individuals with prosopagnosia may not recognize close family members, including parents and spouses, by their faces. For instance, someone with prosopagnosia might walk past their child in a crowd, only realizing their mistake upon noticing their child's distinctive backpack or favorite jacket. Prosopagnosia specifically impairs facial recognition, while the recognition of other objects or...
188
Taste Buds and Receptors
2.1K
Gustation, or the sense of taste, is intrinsically linked to the anatomical structures located on the tongue. This organ's surface, along with the entirety of the oral cavity, is adorned with stratified squamous epithelium. Evident on the tongue are elevated structures known as papillae (singular = papilla), which house the mechanisms for the transduction of gustatory stimuli. Four distinct types of papillae exist, each identified by their unique morphological attributes: the circumvallate,...
2.1K
Pneumonia II: Pathophysiology
298
The pathophysiology of pneumonia involves the following steps:
298


