The aim of this study was to verify whether the amount of blood and number of triotomines used could improve the artificial xenodiagnosis performed in 200 chronic phase infected individuals. Ten or 40ml of peripheral blood was collected in heparinized (20.4 IU) vacuum tubes, and fed to 60 and 360 triatomines, respectively. Dipetalogaster maximus (1st instar, about 15 days after eclosion), as well as 3rd instar Triatoma infestans and Triatoma vitticeps and the 4th instar of Rhodnius neglectus were used. The faecal examinations were performed 30 and 60 days after xenodiagnosis procedure. The positivity with 10ml of blood was 19% and with 40ml, 44%, from which it was concluded that a correlation existed between the amount of blood and the number of triatomines used (p < 0.01). The positivity of the xenodiagnosis ranged from 9.7 to 100%, higher in young and adults up to 34 years old, but independent in relation to the sex of the chronic chagasic individuals studied.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1590/s0037-86822002000100006 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Presentation and surgical management approaches of giant presacral and sacral schwannomas: a case report and systematic review and meta-analysis.
Eur Spine J
January 2025
Department of Neurosurgery, Faculty of Medicine, Mansoura University, Mansoura, Egypt.
Background: Giant sacral and presacral schwannomas are very rare conditions and their prevalence is estimated to account for only 0.3 to 3.3% of overall schwannomas.
View Article and Find Full Text PDFPrepartum supplementation of Ascophyllum nodosum meal or ethylenediamine dihydroiodide: Effects on colostrum yield and growth and health of dairy calves.
J Dairy Sci
January 2025
Department of Agriculture, Nutrition, and Food Systems, University of New Hampshire, Durham, NH 03824. Electronic address:
We aimed to evaluate the effects of prepartum supplementation of different I sources (Ascophyllum nodosum [ASCO] meal and ethylenediamine dihydroiodide [EDDI]) on colostrum yield of cows, and blood concentrations of glucose, BHB, and thyroid hormones and growth of dairy calves. Forty multiparous Holstein cows were blocked by lactation number and expected calving date and assigned to 1 of 4 treatments 28 d before parturition: (1) EDDI supplemented (11 mg/d) to a basal diet to meet the NRC (2001) I concentration of 0.5 mg of I/kg of DMI (control = CON [0 g/d of ASCO meal]; actual I concentration = 0.
View Article and Find Full Text PDFEffects of acute PM purification on cognitive function and underlying mechanisms: Evidence from integrating alternative splicing into multi-omics.
J Hazard Mater
January 2025
Vanke School of Public Health, Tsinghua University, Beijing 100084, China; Institute for Healthy China, Tsinghua University, Beijing 100084, China. Electronic address:
The relationship between fine particulate matter (PM) and cognition has been extensively investigated. However, the causal impact of acute PM purification on cognition improvement and the underlying biological mechanisms remain relatively opaque. Our double-blinded randomized controlled trial assessed the impact of acute PM purification on executive function, underpinned by multi-omics approaches including alternative splicing (AS) analysis.
View Article and Find Full Text PDFSyncopal reactions in blood donors: Pathophysiology, clinical course, and features.
Asian J Transfus Sci
September 2022
Department of Physiology, Mahatma Gandhi Medical College, Sri Balaji Vidyapeeth (Deemed to be University), Puducherry, India.
Vasovagal syncope (VVS) in donors is a transient loss of consciousness due to short-term global cerebral hypoperfusion, which has a rapid onset and has complete spontaneous recovery. VVS may be triggered by pain, fear, anxiety, or emotional upset and loss of blood perse. It is an exaggeration of an adaptive response meant to assist in reducing the amount of bleeding/loss of blood.
View Article and Find Full Text PDFSerological comparison of weak D versus weakly reacting D by four different methods.
Asian J Transfus Sci
September 2022
Department of Transfusion Medicine, Institute of Medical Sciences and SUM Hospital, Bhubaneswar, Odisha, India.
Introduction: Weak D red cells were defined as having a reduced amount of D antigen (formerly called "Du") that required an indirect antiglobulin test (IAT) for detection. Weakly reacting D is those which give <2+ reactions on routine methods. The present study is sharing our experience on weak D and weakly positive anti-D in various methods.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!