Eray Özgün, Gülben Sayılan Özgün, Ufuk Usta, Sevgi Eskiocak, Selma Süer Gökmen
Purpose: To investigate the effects of melatonin on serum paraoxonase and lactonase activities in
isoproterenol-induced myocardial infarction.
Materials and Methods: Rats were divided into four groups as control, melatonin, ISO and
ISO+melatonin....
Journal of Turkish Clinical Biochemistry
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2018-04-01
Tevfik Noyan, Murat Cihan, Esra Yiğit, Fatih Ahmet Uzdu
Objective: The aim of this study was to retrospectively evaluate the performance of 2 glucometer devices using the accuracy criteria specified in ISO 15197:2015.
Methods: Glucose results obtained from Accu-Chek Inform II and Sejoy BG-707 glucometers,...
Journal of Turkish Clinical Biochemistry
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2026-08-25
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DOI: 10.65717/jtcb.2026.26027
Hale Aral, Pınar Tonbaklar, Alper Tunga Özdemir, Güvenç Güvenen
There is no a standart pr ocedure to assess instrument quality on technical and analytical performance of glucometers yet. We made up our protocole considering NCCLS EP9-A2 (National Commitee for Clinical Laboratory Standarts EP9-A2) and ISO 15197 (International Organization for Standardization...
Journal of Turkish Clinical Biochemistry
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2004-12-01
Leyla Demir, Saliha Aksun
Aim: The uncertainty of measurement is an important indicator for both the expediency of a method and the reliability of analytical results obtained in a laboratory. Accreditation processes such as ISO 15189 also expect laboratories to have a defined method for measurement...
Journal of Turkish Clinical Biochemistry
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2023-08-01
Giray Bozkaya
The ratio of errors belonging to preanalytical phase, which is a part of total testing process is extremely
high. The errors should be reduced by including the preanalytical phase in quality assurance as much
as possible. ISO 15189 recommend external quality assurance for preanalytical phase....
Journal of Turkish Clinical Biochemistry
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2017-12-01
Mine Büşra Bozkürk, Funda Güçel, Atakan Öztürk, Arzu Kösem
Aim: The measurement uncertainty (MU) of high-sensitivity troponin T (hs-TnT) and myoglobin assays was calculated in accordance with ISO/TS 20914:2019. The calculated MU values were subsequently compared with the relevant analytical performance specifications (APS).
...
Journal of Turkish Clinical Biochemistry
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2025-12-01
Murat Akşit, Mustafa Terzioğlu, Merve Zeytinli Akşit, Tuba Kansu Altan, Banu İşbilen Başok, Ayfer Çolak
Aim: Quality improvement studies in clinical laboratories play a vital role in achieving accurate and reliable patient results. Measurement uncertainty is important for the quality and reliability of test results. Since laboratory results inherently involve uncertainty, ISO...
Journal of Turkish Clinical Biochemistry
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2023-12-01
Serap Çuhadar, Tuna Semerci, Mehmet Köseoğlu, Filiz Akyıldız Akçay, Tuğba Kantaroğlu Aydın, Ayşenur Atay, Serdar Bayata
Objective: The oxidative stress and renal vasoconstriction are considered to have an effect on the pathophysiology of contrast induced nephropathy. In this study, we aimed to evaluate the effects of contrast agents on serum creatinine, total antioxidant capacity and estimated...
Journal of Turkish Clinical Biochemistry
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2013-08-01
Cemal Kazezoğlu, Ufuk Usta, Selma Süer Gökmen
Objective: Sialic acid, known as a risk factor for coronary heart disease is also elevated in serum
after myocardial infarction. Because acute myocardial infarction generally develops on the basis of
atherosclerotic heart disease, the effect of experimental myocardial...
Journal of Turkish Clinical Biochemistry
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2009-04-01