Publications by authors named "Ali Rıza Atasoy"

Objective: Hepatitis C virus (HCV) infection is a major public health problem and affects large populations all over the world. Serum anti-HCV level is a valuable marker to determine HCV infection. Anti-HCV testing has been recommended for high-risk population.

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Background: The prognostic value of blood culture testing in the diagnosis of bacteremia is limited by contamination.

Objectives: In this multicenter study, the aim was to evaluate the contamination rates of blood cultures as well as the parameters that affect the culture results.

Materials And Methods: Sample collection practices and culture data obtained from 16 university/research hospitals were retrospectively evaluated.

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Background: The Pseudomonas aeruginosa porin OprD is a substrate-specific porin that facilitates the diffusion of basic amino acids, small peptides, and carbapenems into the cell. OprD-mediated resistance occurs as a result of decreased transcriptional expression of oprD and/or loss of function mutations that disrupt protein activity.

Objectives: In this study, we examined the level of oprD expression in P.

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Objectives: To evaluate the in vitro activity of doripenem in Acinetobacter baumannii (A. baumannii) clinical isolates that possess different OXA-type carbapenemases, and to evaluate the roles of these enzymes in the development of carbapenem resistance.

Methods: This retrospective study was conducted with 25 A.

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Enzymatic modification of aminoglycosides by nucleotidyltransferases, acetyltransferases and/or phosphotransferases accounts for the majority of aminoglycoside-resistant Acinetobacter isolates. In this study, we investigated the relationship between aminoglycoside resistance and the presence of aminoglycoside-modifying enzymes in Acinetobacter baumannii clinical isolate groups with different resistance profiles. Thirty-two clinical A.

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Bacteremia and sepsis are common causes of morbidity and mortality worldwide, with incorrect or delayed diagnoses being associated with increased mortality. New tests or markers that allow a more rapid and less costly detection of bacteremia and sepsis have been investigated. The aim of this study was to clarify the cutoff value of the neutrophillymphocyte ratio (NLR) according to procalcitonin (PCT) level in the decision-making processes for bacteremia and sepsis.

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Acinetobacter baumannii is the most important agent of nosocomial infections within the Acinetobacter genus. This gram-negative coccobacillus is intrinsically resistant to many antibiotics used in antimicrobial therapy, and capable of developing resistance including carbapenems. The objective of this study was to develop a multiplex real time polymerase chain reaction (qPCR) kit for OXA subgroups in A.

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