Journal
JOURNAL OF NEGATIVE RESULTS IN BIOMEDICINE
Volume 14, Issue -, Pages -Publisher
BIOMED CENTRAL LTD
DOI: 10.1186/s12952-014-0020-6
Keywords
Dengue; Vascular leakage; Fc gamma RI; ELISA
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Funding
- Ministry of Education Long Term Research Grant Scheme (LRGS) for Infectious Disease, Ministry of Higher Education, Malaysia [600-RMI/LRGS 5/3 (3/2011)]
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Background: Dengue is a major public health problem in many tropical and sub-tropical countries. Vascular leakage and shock are identified as the major causes of deaths in patients with severe dengue. Studies have suggested the potential role of Fc gamma receptors I (Fc gamma RI) in the pathogenesis of dengue. We hypothesized that the circulating level of Fc. receptor I could potentially be used as an indicator in assisting early diagnosis of severe dengue. Results: A selected cohort of 66 dengue patients including 42 dengue with signs of vascular leakage, and 24 dengue without signs of vascular leakage were identified and were afterwards referred to as 'cases' and 'controls' respectively. Thirty seven normal healthy controls were also recruited in this study. The circulating level of Fc gamma RI was quantified from the serum using enzyme-link immunosorbent assay (ELISA). The levels of Fc gamma RI in both groups of patients with and without vascular leakage were found to be significantly higher than the normal healthy controls (P < 0.001). However, there was no significant difference found between patients with vascular leakage and those without vascular leakage (p = 0.777). Conclusion: We suggest that Fc gamma RI is not associated with the vascular leakage in dengue. However, further studies are necessary to delineate the role of Fc gamma RI in antibody-dependent enhancement (ADE) mechanism.
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