相关实验视频
Updated: Jun 29, 2026

09:53
In vivo Imaging of Transgenic Leishmania Parasites in a Live Host
Published on: July 27, 2010
16.0K
皮肤雷什曼病治疗反应相关的组织学发现:临床病理相关性研究
Hasna Riyal1, Nilakshi Samaranayake1, Priyani Amarathunga2
1Department of Parasitology, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka.
International journal of dermatology
|September 19, 2023
概括
组织病理学,而不是临床症状,预测延迟皮肤莱什曼病治疗反应. 严重的寄生虫负载和阿坎索斯表明愈合速度较慢,指导针对Leishmania donovani感染的患者管理.
科学领域:
- 皮肤病学 皮肤病学
- 传染性疾病 传染性疾病
- 寄生虫学的寄生虫学
背景情况:
- 斯里兰卡的皮肤莱什曼病 (CL) 治疗反应是可变的.
- 对于CL治疗成功或失败的预测因素尚不清楚.
- 莱什曼尼亚多诺瓦尼是一种CL的致病原体.
研究的目的:
- 确定局部性CL中治疗反应的临床和组织病理预测因素.
- 了解在CL患者中可变治疗结果的决定因素.
主要方法:
- 评估了103个从寄生虫学确认的CL患者的穿孔活检中取出的组织切片.
- 每周监测患者,直到病变愈合,随访6个月和1年.
- 分析了人口统计学,临床和组织病理学特征与治疗反应.
主要成果:
- 治愈所需的平均剂量为12.2个内溶性固糖酸盐 (IL-SSG) 剂量.
- 28.1%的患者是延迟反应者;没有人在1年内复发.
- 严重的寄生虫负载和白病显著预测了延迟的治疗反应 (P < 0.001).
- 较高的寄生虫负载与皮肤炎症,巨细胞透和表皮缩相关.
- 形成良好的颗粒瘤与寄生虫负载有相反的关系.
结论:
- 与临床特征相比,组织病理学发现是延迟CL治疗反应的优越预后标志物.
- 基于活检的组织病理学可以在初始诊断时帮助针对性地治疗CL的患者.
相关概念视频
Leishmaniasis
Leishmaniasis is a protozoal disease caused by species of the genus Leishmania and transmitted through the bite of infected female sandflies. The parasite exists in two principal morphological forms during its life cycle. A sandfly acquires intracellular amastigotes from an infected reservoir host, such as a dog. Within the sandfly, these forms differentiate into motile, flagellated promastigotes. During a subsequent blood meal, promastigotes are injected into the human host, where they...
Antiprotozoal Agents
Leishmaniasis is a widespread parasitic disease caused by several Leishmania species. It affects millions of people each year and remains a major public health problem in endemic regions. First-line treatment relies on pentavalent antimonials, including meglumine antimoniate and sodium stibogluconate. Even so, how these drugs work has not been fully clear, especially their interaction with parasite-specific biochemical pathways. One key target is trypanothione reductase (TR), an enzyme that...

