國家衛生研究院 NHRI:Item 3990099045/6298

NHRI > National Institute of Infectious Diseases and Vaccinology > Leung-Kei Siu > Periodical Articles > Item 3990099045/6298

Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/6298

Title:	Increasing opsonizing and killing effect of serum from patients with recurrent K1 Klebsiella pneumoniae liver abscess
Authors:	Yeh, FC;Yeh, KM;Siu, LK;Fung, CP;Yang, YS;Lin, JC;Chang, FY
Contributors:	Division of Infectious Diseases
Abstract:	Background: Klebsiella pneumoniae liver abscess (KLA) is an emerging infectious disease caused by the virulent K pneumoniae strains of capsular serotype K1 and commonly associated with diabetes mellitus. Recurrent KLA is rarely reported and the mechanism of recurrence is uncertain. In this study we evaluated both phagocytosis by neutrophils and serum killing ability of serum from recurrent K1 KLA patients compared to normal healthy subjects (NHS). Methods: This prospective study included six cases of recurrent K1 KLA consisting of three male and three female patients with a mean age of 67.2 years (range, 56-88 years). The different serotypes of K pneumoniae were reacted with serum from patients with recurrent KLA and NHS. Subsequent phagocytosis by neutrophils was determined using flow cytometry and serum killing assays were performed. Results: The most common underlying disease in patients with recurrent KLA was diabetes mellitus, occurring in about 83.3% (5/6) of patients. The antibiogram of the strains associated with recurrent KLA remained uniquely resistant to ampicillin. The average percentage derived from the serum killing assays showed serotype K1 and K2 resistance to serum from NHS (1281% and 621%, respectively); however, serum susceptibly was observed in the serum of patients with recurrent K1 KLA (0.3% and 1.1%, respectively). A significant increase in neutrophil phagocytosis of serotype K1 was observed following opsonisation with serum from patients with recurrent KLA compared with serum from NHS (p?=?0.008). No significant difference in the phagocytic rate of non-K1/K2 or K2 serotypes was observed between NHS and patients with recurrent KLA (p?=?0.76 and p?=?0.132, respectively). Conclusion: These preliminary results showed possible immunologic protection in patients with recurrent KLA due to increasing opsonization and serum killing.
Date:	2012-04
Relation:	Journal of Microbiology, Immunology and Infection. 2012 Apr;45(2):141-146.
Link to:	http://dx.doi.org/10.1016/j.jmii.2011.12.006
JIF/Ranking 2023:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1684-1182&DestApp=IC2JCR
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000304215000010
Cited Times(Scopus):	http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84862779104
Appears in Collections:	[Leung-Kei Siu] Periodical Articles

Files in This Item:

File	Description	Size	Format
SCP84858409970.pdf		300Kb	Adobe PDF	299	View/Open

Loading...