Gülsüm Feyza Altaş, Sezer Uysal
Objective: The use of glycemic markers in the follow-up of Diabetes Mellitus is important to prevent the
development of complications. Glycated hemoglobin (HbA1c) is more stable and exhibits glucose status
of 8-12 weeks, while fasting plasma glucose (APG) reflects the...
Journal of Turkish Clinical Biochemistry
•
2017-08-01
Yasemin Üstündağ, Kağan Huysal, Gülsevil Tarakçı
Objective: Measurement of HbA1c is widely used in patients with diabetes mellitus as a monitor of retrospective glycemic control. Currently, more than 30 different methods are commercially available to measure HbA1c and these methods vary in the fraction of Hb measured and the...
Journal of Turkish Clinical Biochemistry
•
2011-04-01
Belkız Öngen İpek, Mustafa Erinç Sitar
Objective: For this current study, our aims were to investigate the relationships between HbA1c with
neutrophil lymphocyte ratio (NLR) and platelet lymphocyte ratio (PLR) which are accepted as new
markers of systemic inflammation and the relationships between HbA1c with CRP...
Journal of Turkish Clinical Biochemistry
•
2018-08-01
Giray Bozkaya, Murat Örmen
Purpose: Hemoglobin A1c (HbA1c), also known as glycated hemoglobin, indicates the blood glucose
control over the last 8-12 weeks. HbA1c level is a useful marker for the monitoring of the diabetic
patient and shows the necessity of any adjustment to the treatment has to be...
Journal of Turkish Clinical Biochemistry
•
2018-08-01
Işıl ÇAKIR
Aim: The frequency and severity of urinary tract infections (UTI) in diabetic patients are increasing.
HbA1c retrospectively gives important information about glycemic control. In this study it was aimed to
examine the relationships between presence of microscobic...
Journal of Turkish Clinical Biochemistry
•
2020-08-01
Berrak Güven, Ferhan Adıbelli, Taner Bayraktaroğlu, Birsen Sahip Yesiralioglu
Aim: We aimed to demonstrate the interference in Hemoglobin A1c (HbA1c) testing in a patient diagnosed with Evans syndrome, a rare condition characterized by autoimmune hemolytic anemia.
Case: A patient who presented to our laboratory for biochemical...
Journal of Turkish Clinical Biochemistry
•
2025-08-01
•
DOI: 10.56615/tkbd.2025.09
Fatih Yay, Fatma Uçar, Ali Yalçındağ, Lütfüye Tuba Hancı, Esra Çetin, İsmail Temel
Background: It has been established that hemoglobinopathies and chemically modified derivatives of
hemoglobin, interfered with some HbA1c assay methods either positively or negatively. In this study we
present a case with a low HbA1c value as measured by ion-exchange HPLC...
Journal of Turkish Clinical Biochemistry
•
2017-12-01
Derya Koçer, Selma Buldu, Mehmet Zahid Çıracı, Çiğdem Karakükcü
Objective: In addition to important roles of vitamin D on regulation of bone and mineral metabolism,
recent studies have shown that Vitamin D is necessary for many biological actions. The aim of this study
was to determine whether Vit D levels have any effects on lipid...
Journal of Turkish Clinical Biochemistry
•
2016-08-01
Özlem Uğurlu Demirezen, Nuriye Uzuncan, Sibel Bilgili, Murat Akşit, Alperen Halil İhtiyar, Özge Esenlik, Giray Bozkaya
Objective: Method comparison experiments are based on comparison of samples results analyzed by
the new test method and previously accepted method. In this study is aimed to compare reversedphase
cation exchange chromatography with boronate affinity chromatography method...
Journal of Turkish Clinical Biochemistry
•
2016-08-01
Nazan Tunçbilek, Asuman Orçun, Nuray Kolcu, Mehmet Sargın, İnci Küçükercan, Gülcan Baloğlu
Objective: A natural anticoagulant Protein C and its cofactor free Protein S, play an important role in the development of thrombosis in diabetics. In this study, we compared Protein C and Protein S concentrations in type 2 diabetic patients and healthy controls and observed...
Journal of Turkish Clinical Biochemistry
•
2005-04-01
Kadriye Akpınar, Esin Avcı, Süleyman Demir
Aim: We aimed to evaluate HbA1c with HbA0, HbF, HbA1 subfractions and to discuss the clinical
usefulness of HbA1c by considering the total hemoglobin (THb) levels of the patients.
Materials and Methods: This retrospektif study included 338 individuals...
Journal of Turkish Clinical Biochemistry
•
2020-12-01
Sezer Uysal
Improving glycemic control reduces the development of microvascular and macrovascular
complications of diabetes mellitus. HbA1c measured by various methods is used to monitor glycemic
status. In 1990s, various national standardization programs were implemented to reduce variability in
HbA1c...
Journal of Turkish Clinical Biochemistry
•
2011-12-01
Tevfik Noyan, Abdullah Üner, Murat Cihan
HbA1c measurement was performed by the high-performance liquid chromatography (HPLC) method,
and the result was measured as 3.5% (14.75 mmol/mol). Since the HbA1c result was inconsistent with
the other clinical values of the patient, the same sample was run in the variant mode of the...
Journal of Turkish Clinical Biochemistry
•
2022-12-01
•
DOI: 10.56615/tkbd.2022.15
Inanc Karakoyun, Fatma Demet Arslan
Aim: Pancreatic cancer (PC) is a disease with complex and poorly understood etiology. One of the
common risk factors of PC is diabetes mellitus (DM). Increased carbohydrate antigen (CA) 19-9 levels
can be used as a biomarker in diagnosis of PC. However, CA 19-9 levels have...
Journal of Turkish Clinical Biochemistry
•
2020-12-01
Barış Sağlam, Sezer Uysal, Banu Önvural
Diabetes Mellitus (DM) is a very common chronical disease of our country. In diagnosis of DM and
monitoring of glycemic values, besides glucose,HbA1c is also being used. However HbA1c cannot reflect
glycemic levels for short term and also, conditions like anemia, hemoglobinopathies and chronic...
Journal of Turkish Clinical Biochemistry
•
2014-08-01
Tevfik Noyan, Abdullah Üner, Sevim Eşmedere Eren, Murat Cihan
Aim: In this study, it was aimed to evaluate the preanalytical process performance in our laboratory with
the six-sigma methodology and to investigate the effect of the training given to the hospital staff on the
sigma values.
Materials and Methods:...
Journal of Turkish Clinical Biochemistry
•
2022-04-01
•
DOI: 10.56615/tkbd.2022.08
Ceyda Kabaroğlu, Ece Onur, Betül Ersoy, Bayram Özhan, Soner Erdin, Ahmet Var, Oya Bayındır
Objective: In this study, we aimed to evaulate serum C-reactive protein (CRP), interleukin 6 (IL-6),
and neopterin levels with lipoprotein phospholipase A2(Lp-PLA2) activity in obese adolescents with or
without insulin resistance, and to demonstrate their relationships with...
Journal of Turkish Clinical Biochemistry
•
2011-12-01
Gülfer Öztürk, Zeynep Giniş, Hülya Akdeniz, Tuncay Delibaşı, Namık Delibaş
Objective: Cysta tin C has been proposed for the estimation of glomerular filtration rate (GFR). This
study was designed to evaluate cystatin C levels in Type 2 Diabetes Mellitus (DM) as an early marker
of diabetic nephropathy.
Materials and Methods:...
Journal of Turkish Clinical Biochemistry
•
2011-12-01
Hülya Yalçin, Burak Toprak, Ayfer Çolak, Aybike Hastürk Günaslan
Objective: The discovery of vitamin D receptors and vitamin D activating enzymes in several cells other
than those involved in bone and mineral metabolism brought the non-classical effects of vitamin D into
focus. It was reported that diabetic patients have significantly...
Journal of Turkish Clinical Biochemistry
•
2017-08-01
Çiğdem Karakükcü, Meral Mert, Ahmet Karaman
Objective: There is an increase in platelet activation in diabetics and patients with diabetic
complications. Labile hemoglobin A1c (LHbA1c), an early glycation product, can turn into other
glucose metabolites which can be responsible for many kinds of pathologies observed...
Journal of Turkish Clinical Biochemistry
•
2011-12-01