相关实验视频

Updated: Jul 1, 2026

Production of Genetically Engineered Golden Syrian Hamsters by Pronuclear Injection of the CRISPR/Cas9 Complex

Production of Genetically Engineered Golden Syrian Hamsters by Pronuclear Injection of the CRISPR/Cas9 Complex

Published on: January 9, 2018

在长期COVID的叙利亚仓鼠模型中,SARS-CoV-2变种致病性的比较

Maedeh Naghibosadat¹, Elan Hahn², Siena Molinaro¹

¹Biological Sciences, Sunnybrook Research Institute, Sunnybrook Hospital, Toronto, Canada.

|March 11, 2026

概括

在感染后,SARS-CoV-2变种会导致明显的器官损伤. 该研究揭示了肺部,心脏和脏的变异依赖性纤维化,Alpha和WT菌株在子中显示出更严重的病理.

科学领域:

病毒学病毒学
免疫学免疫学免疫学
病理学病理学病理学

背景情况:

由于COVID-19的流行病导致了广泛的疾病,许多人经历了长期的多器官症状 (COVID-19的后急性后续).
了解这些序列的病理生理学,特别是它在SARS-CoV-2变体之间如何不同,对于开发有效的治疗方法至关重要.

研究的目的:

通过使用仓鼠模型,研究由不同SARS-CoV-2血统引起的依赖变异的急性器官损伤.
建立一个定量框架,用于评估后急性COVID-19的抗纤维干预措施.

主要方法:

叙利亚金色仓鼠感染了野生型 (WT),Alpha (B.1.1.7) 或Beta (B.1.351) SARS-CoV-2 变种.
动物在28天内被监测临床症状和病毒分泌.
肺部,鼻,心脏,脏和脏的组织病理学分析是在感染后的14天和28天进行的.

主要成果:

所有变种都引起了类似的急性疾病,病毒载量在第3天达到峰值,体重在第7天减轻最大.
在所有感染群体中都观察到炎症和纤维化.
野生型和阿尔法变种与Beta变种相比,诱导了更大的肺,心脏和纤维化.
脏生殖中心扩张在感染阿尔法变异的仓鼠中最为突出.

结论:

感染SARS-CoV-2导致子的多器官损伤后急性变体依赖.
WT和Alpha变种导致了最严重的病理,突出了谱系特异性的影响.
哈姆斯特模型有效地捕捉了依赖变异的器官损伤,可以用于评估抗纤维化疗法.

关键词:

19,病理学,SARS的情况有两种变种,有两种变种.在 CoV CoV 中.急性后果,COVID的急性后果哈姆斯特模型,帖子后.

更多相关视频

Live Imaging and Quantification of Viral Infection in K18 hACE2 Transgenic Mice Using Reporter-Expressing Recombinant SARS-CoV-2

Live Imaging and Quantification of Viral Infection in K18 hACE2 Transgenic Mice Using Reporter-Expressing Recombinant SARS-CoV-2

Published on: November 5, 2021

A Mouse Model for the Transition of Streptococcus pneumoniae from Colonizer to Pathogen upon Viral Co-Infection Recapitulates Age-Exacerbated Illness

A Mouse Model for the Transition of Streptococcus pneumoniae from Colonizer to Pathogen upon Viral Co-Infection Recapitulates Age-Exacerbated Illness

Published on: September 28, 2022

相关概念视频

Rabies

Rabies

Rabies is a lethal zoonotic disease caused by a single-stranded, negative-sense RNA virus of the Lyssavirus genus, within the family Rhabdoviridae. Its primary mode of transmission to humans is through bites or saliva-contaminated scratches from infected mammals such as dogs, bats, raccoons, or foxes. Transmission can also occur if infectious saliva contacts abraded skin or intact mucous membranes, including the conjunctiva.Viral Entry and Early ReplicationOnce introduced at the bite or scratch...

Coronavirus

Coronavirus

Coronaviruses, including the severe acute respiratory syndrome coronavirus (SARS-CoV), are enveloped viruses characterized by their single-stranded, positive-sense RNA genome and helical nucleocapsid structure. The hallmark of these viruses is their club-shaped spike (S) glycoproteins that protrude from the viral envelope, facilitating attachment to host cells. Typically, coronaviruses infect the upper respiratory tract, often causing mild or asymptomatic disease. However, certain strains like...