在巴西东北部,对曼森杆菌病的演变进行了为期三年的前性研究
Lancet (London, England)
|July 13, 1985
概括
脊髓炎 (Schistosoma mansoni) 感染在流行地区导致肝脏和脏显著扩大. 严重的感染增加了脊髓巨变的风险,突显了化疗在降低发病率方面的重要性.
科学领域:
- 热带医学 热带医学
- 传染性疾病 传染性疾病
- 寄生虫学的寄生虫学
背景情况:
- 曼索尼杆菌病是巴西东北部的特有病.
- 肝壮病和壮病是致病率的关键指标.
- 之前的研究表明,在特有地区的流行率很高.
研究的目的:
- 为了评估与Schistosoma mansoni感染相关的发病率.
- 为了评估随着时间的推移而发生的肝扩大和扩大变化.
- 为了确定感染强度对发病率的影响.
主要方法:
- 1974年进行的横截面研究,1977年重复进行.
- 一组210个人进行了重复检查.
- 评估肝壮病和壮病的流行率和回归.
主要成果:
- 与非特有地区相比,在特有地区的肝病巨变 (>80%) 和病巨变 (>15%) 的高患病率.
- 在3年内观察到肝大病 (13%) 和大病 (56%) 的自发回归.
- 严重的感染 (≥500个蛋/g便) 显著增加了脊髓巨变的风险和持续性.
结论:
- 对肝脏和脏的感染,schistosoma mansoni感染的强度至关重要.
- 降低感染强度的化疗计划对于缓解分裂性发病率至关重要.
- 了解自然回归模式可以为治疗策略提供信息.
相关概念视频
Malaria
Malaria pathogenesis in humans reflects a delicate interplay between parasite biology and host response. Clinical illness reflects a host’s immune response to the parasite’s asexual replication cycle, which is often asymptomatic in individuals with partial immunity. From the parasite's perspective, transmission between mosquito and human with minimal host pathology is evolutionarily advantageous. Among the six Plasmodium species infecting humans, P. falciparum and P. vivax dominate in global...
American Trypanosomiasis
Chagas disease, or American trypanosomiasis, is a vector-borne parasitic infection caused by Trypanosoma cruzi, a flagellated protozoan (kinetoplastid) of the family Trypanosomatidae. The disease is endemic in Latin America, although cases are increasingly reported worldwide due to human migration. Transmission most commonly occurs when feces of infected triatomine bugs contaminate bite wounds or mucosal surfaces; additional routes include congenital, transfusional, transplant-related, and oral...
Amebiasis
Entamoeba histolytica, a protozoan parasite, is responsible for intestinal and extraintestinal amebiasis. Though a significant proportion of infections remain asymptomatic, approximately 50 million individuals annually are estimated to present with clinical disease, resulting in up to 100,000 deaths globally. The disease burden is disproportionately high in regions with lower socioeconomic status, such as parts of India, Africa, Mexico, and Latin America.Etiology and TransmissionThe infective...


