相关实验视频

Updated: May 5, 2026

A Screenable In Vivo Assay for Mitochondrial Modulators Using Transgenic Bioluminescent Caenorhabditis elegans

A Screenable In Vivo Assay for Mitochondrial Modulators Using Transgenic Bioluminescent Caenorhabditis elegans

Published on: October 16, 2015

从选择到抵抗:在药物压力下虫进化中的线粒体发现

João Alexsander Silva Costa¹, Celi da Silva Medeiros¹, Luis Fernando Viana Furtado²

¹Molecular Parasitology Laboratory, Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Pampulha Campus, Belo Horizonte, MG, Brazil.

Veterinary parasitology

|April 23, 2025

概括

在Ancylostoma ceylanicum菌株中的遗传同质性可能会增加对阿尔本达抗性的敏感性. 线粒体DNA分析揭示了耐药菌株的明显变异,突出了种群遗传学在耐药性进化中的作用.

科学领域:

寄生虫学的寄生虫学
人口遗传学人口遗传学
分子生物学分子生物学

背景情况:

线虫中本齐米达耐药性与β-素同型1基因中的特定单核酸多态 (SNP) 有关.
抗阿尔本达的Ancylostoma ceylanicum菌株以前是通过来自野生型实验室菌株的药物诱导选择性压力开发的.

研究的目的:

与其野生型对应物相比,研究抗阿尔本达醇抗性Ancylostoma ceylanicum菌株中的线粒体遗传变异性.
了解寄生性线虫药物耐药性演变的遗传基础.

主要方法:

分析线粒体细胞染色体c氧化酶子单元I (COI) 和NADH脱酶子单元1 (NAD1) 基因的部分序列.
随着时间的推移收集的来自耐药和野生型菌株的151个虫的测序.
用最大概率和贝叶斯推理进行的家族遗传分析.

主要成果:

核酸变异仅在耐药菌株中检测到,COI (0.16%) 和NAD1 (0.25%) 的差异水平较低.
COI基因替代是同义的,而NAD1表现出一种非同义突变.
遗传学分析显示,耐药和野生型实验室样本的聚类很强,与现场衍生的序列不同.

结论:

基因均的线虫种群可能更容易受到选择性压力的影响,这可能有助于药物耐药性的发展.
种群遗传学在抗虫药物耐药性的演变中起着至关重要的作用.
保持遗传多样性对于缓解寄生性线虫中药物耐药性的发展很重要.

关键词:

西米达的耐药性比较强.遗传的变异性遗传的变异性虫是一种虫.尼马类的药物耐药性.人类遗传学分析选择性的压力选择性压力.

更多相关视频

Comparative Analysis of Experimental Methods to Quantify Animal Activity in Caenorhabditis elegans Models of Mitochondrial Disease

Comparative Analysis of Experimental Methods to Quantify Animal Activity in Caenorhabditis elegans Models of Mitochondrial Disease

Published on: April 4, 2021

Imaging and Quantifying Mitochondrial Morphology in C. elegans During Aging

Imaging and Quantifying Mitochondrial Morphology in C. elegans During Aging

Published on: January 17, 2025

相关概念视频

Diversity of Protists I

Diversity of Protists I

Excavata is a diverse group of protists that includes both chemoorganotrophic and phototrophic species, with some thriving in anaerobic environments. Among the key groups within Excavata are diplomonads and parabasalids, which are flagellated protists that lack mitochondria and chloroplasts. These microorganisms typically inhabit anoxic environments, such as the intestines of animals, where they exist either symbiotically or as parasites, relying on fermentation for energy production. Some...

Evolution of New Traits in Microbes

Evolution of New Traits in Microbes

Microorganisms evolve rapidly due to their large population sizes and short generation times, often exhibiting measurable changes within days under laboratory conditions. Natural selection acts on standing genetic variation, enabling the retention and amplification of beneficial traits that confer fitness advantages in changing environments.Adaptive Pigment Regulation in RhodobacterIn Rhodobacter, a genus of purple non-sulfur bacteria, light-harvesting pigments such as bacteriochlorophyll and...

Anthelminthic Agents

Anthelminthic Agents

Anthelmintic drugs differ significantly from antiparasitic therapies targeting protozoa, primarily due to differences in parasite biology. Whereas most protozoal treatments act on proliferating cells, anthelmintics are typically directed against mature, nonproliferative helminths. The therapeutic approach considers the helminth's reliance on neuromuscular coordination, glucose metabolism, and microtubular integrity for survival, reproduction, and localization within the host. Most anthelmintics...