American Journal of Infectious Diseases and Microbiology
ISSN (Print): 2328-4056 ISSN (Online): 2328-4064 Website: Editor-in-chief: Maysaa El Sayed Zaki
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American Journal of Infectious Diseases and Microbiology. 2017, 5(2), 74-79
DOI: 10.12691/ajidm-5-2-1
Open AccessArticle

Thrombocytopenia in Patients with Dengue Virus Infection and Correlation between Circulating Soluble MICB Protein Level and Platelet Counts

Le Van Tuan1, , Phan Thi Tuyet Nga1, Trinh Thi Hong Hanh1, Nguyen Thi Thu Tram1 and Pham Tho Duoc1

1Department of Virology, Tay Nguyen Institute of Hygiene and Epidemiology, Buon Ma Thuot city, DakLak, Vietnam

Pub. Date: April 10, 2017

Cite this paper:
Le Van Tuan, Phan Thi Tuyet Nga, Trinh Thi Hong Hanh, Nguyen Thi Thu Tram and Pham Tho Duoc. Thrombocytopenia in Patients with Dengue Virus Infection and Correlation between Circulating Soluble MICB Protein Level and Platelet Counts. American Journal of Infectious Diseases and Microbiology. 2017; 5(2):74-79. doi: 10.12691/ajidm-5-2-1


Background: Soluble MHC class I polypeptide-related sequence B (sMICB) has been associated with the development of severity of dengue fever. However, serum sMICB level and relationship with platelets in patients with dengue virus (DENV) infection remain unclear. The aims of this study are to identify soluble MICB serum level and the correlation with platelets counts in patients with dengue virus infection. Methods: A total of 88 patients were confirmed with an acute phase of DENV infection (1–7 days after the onset of illness) based on the result a positive reverse transcriptase-polymerase chain reaction (RT-PCR), or anti-dengue IgM antibodies were used. Serum soluble MICB level was measured by MICB ELISA. Results: Serum soluble MICB (sMICB) levels in dengue virus infected patients were observed a median of 146.3 pg/ml. Serum sMICB was significantly higher in dengue patients with warning signs and severe compared to patients without warning signs. However, no significant difference of sMICB between age groups of dengue patients; and between primary and secondary infection were observed (P > 0.05). The significantly negative correlation between serum sMICB levels and platelet counts was found (Spearman’s rho = -0.34, P = 0.001). Conclusion: Serum sMICB levels might be considered as a potential prognostic biomarker for dengue patients.

dengue fever dengue virus infection soluble MHC class I polypeptide-related sequence B

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