Alev Kural, Çağlar Helvacıoğlu, Ekin Murat, Tekin Neijmann Şebnem
Background: Beta-human chorionic gonadotropin (beta-hCG) is secreted in small amounts by all cells
and since the hormone is largely excreted by the kidneys, its levels can be elevated in non-pregnantdialysis
patients.
Case presentation: A 27-year-old...
Journal of Turkish Clinical Biochemistry
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2015-12-01
Filiz Alkan Baylan, Abdullah Tok, Gürkan Çıkım, Metin Kılınç
Aim: During pregnancy, metabolic and oxidative changes are seen, including various trace elements
and oxidative stress. The main purpose of this study was to evaluate zinc, copper concentrations and
oxidative status compared to trimesters in normal pregnancy.
...
Journal of Turkish Clinical Biochemistry
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2021-04-01
Nesibe Polat, Gürkan Yazıcı, Gülçin Eskandari, Burak Çimen, Handan Çamdeviren, Uğur Atik
Objective: The purpose of this study was to determine the correlation of between second-trimester maternal serum alphafetoprotein, human chorionic gonadotropin b, unconjugated estriol levels and pregnancy complications.
Material and Methods: The data...
Journal of Turkish Clinical Biochemistry
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2004-08-01
Nesibe Polat, Gürkan Yazıcı, Yalçın Polat, Ali Ünlü
Objective: In this study we aimed to calculate the median levels of free β-hCG and PAPP-A levels of pregnant women in our area and to search the relationship between the pregnancy complications and these medians.
Material and Methods: The serum free...
Journal of Turkish Clinical Biochemistry
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2005-12-01
Gökhan Utku, Sembol Türkmen Yıldırmak, Müberra Vardar, Ekrem Özakın, Yüksel Gülen Özbanazı, Veli Mihmanlı, Hatice Birgül Ayabakan, Hülya Çerçi
Objective: Pre-eclampsia is a pregnancy specific form of hypertension and a multisystem disorder of maternal and placental origin. Pregnancy associated plasma protein-A (PAPP-A) is a insulin like growth factor binding protein 4- degrading metalloproteinase. The aim of this...
Journal of Turkish Clinical Biochemistry
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2013-08-01
Zeynep Öztürk, Serap Çuhadar
Rodenticides are the most commonly used toxic agents for suicide attempts. A 24-year-old multiparous
and 11 weeks pregnant woman attempted suicide by taking brodifacoum. She had no signs of
hemorrhage. Laboratory test results included hyponatremia, hypocalcemia, slightly lower blood urea...
Journal of Turkish Clinical Biochemistry
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2015-08-01
Özge Fenercioğlu, Merve Şimşek, Pınar Baraz, Furkan Berk Bilgiç, Enes Bera Şahin, Ilgın Sıvacı, Aslınur Çakır, Mustafa Şen, Ayşe Demirhan, Yahya Yel, Sude Ilgaz Üstündağ, Müjgan Ercan Karadağ, Tülay Köken, Özlem Kayacık Günday, Zehra Bincan
Aim: Diagnosis and treatment of thyroid disorders are essential for a healthy pregnancy. Physiologic changes that occur during pregnancy affect the functioning of the thyroid gland and thyroid function tests. The aim of this study was to determine the reference ranges of...
Journal of Turkish Clinical Biochemistry
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2025-08-01
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DOI: 10.56615/tkbd.2025.07
Kadir Kaba, Fadime Pınar Ateş, Süleyman Berk Akbaş, Ali Muhtar Tiftik
Aim: Immature granulocytes, an indicator of increased myeloid cell production, are associated with infection or systemic inflammation. Data on the use of immature granulocyte levels as a biochemical marker in infection and inflammatory conditions have been reported. In our...
Journal of Turkish Clinical Biochemistry
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2024-08-01
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DOI: 10.56615/tkbd.2024.06
Elif İşbilen, Yeşim Ünlüçerçi, Figen Gürdöl, Hülya Yılmaz, Turgay İsbir, Yavuz Ceylan, Recep Has
Hyperhomocysteinemia and increased ACE activity due to the deletion polymorphism of the ACE gene are two common features in a wide variety of pathological conditions that exhibit endothelial disturbances. In this study, we examined both the I/D genotype distribution and the activity of ACE in...
Journal of Turkish Clinical Biochemistry
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2003-04-01
Hatice Bozkurt Yavuz, Hüseyin Yaman, Süleyman Caner Karahan, Merve Katkat, Yüksel Aliyazıcıoğlu, Asım Örem
Background: First trimester prenatal screening gives the risk rates associated with aneuploidies.
Measurement uncertainty is defined as a magnitude showing distribution of the measured values. The
aim of this study is to investigate the effects of measurement uncertainty on...
Journal of Turkish Clinical Biochemistry
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2021-08-01
Büşra Akşit Koldaş, Tevfik Noyan
Aim: The aim of this study was (1) to compare the serum insulin, ghrelin, obestatin and, copeptin levels
between pregnant and non-pregnant women and (2) investigate the changes in these parameters in
pregnant women that measured at before and second hour after 75 gram (g)...
Journal of Turkish Clinical Biochemistry
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2021-04-01
Şahika Özen Eren, Bünyamin Kaptanoğlu, Hülya Aybek, Mahmut Şenyurt, Mert Özen
Objective: In this study, we aimed to investigate the importance of serum pregnancy associated plasma protein A (PAPP-A) levels as an early marker before an acute myocardial infarction due to a high risk atherosclerotic plaque rupture and the relationship between PAPP-A and...
Journal of Turkish Clinical Biochemistry
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2013-08-01
Oya Sayın, Sezer Uysal, Banu Önvural, Rengin Börekci
Objective: Preeclampsia is characterized with edema, proteinuria and hypertension and develops after the 20th week of pregnancy and seen only in pregnancy. In preeclampsia vasospastic ischemia and hypertension can lead to brain, liver and renal infarction. One of the renal...
Journal of Turkish Clinical Biochemistry
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2012-08-01
Sema Uslu, Emine Sütken, Zilif Güçlüer, Ömer Çolak, Özkan Alataş
The purpose of this study was to measure serum adenosine deaminase (ADA) and ceruloplasmin (CP) activities in the second trimester pregnants who had high age and down syndrome (DS) risk as compared with non-pregnants. This preliminary study was made with 280 pregnants who gave blood samples for...
Journal of Turkish Clinical Biochemistry
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2004-12-01
Yasemin Üstündağ, Kağan Huysal, Ünal Kurdoğlu, Gülcan Satır, Mehmet Aral Atalay
Objective: The purpose of this study is to determine the median values of the double test screening parameters in Bursa region and to reevaluate the test results positive risky pregnancies according to previous computer programme.
Materials and Methods:...
Journal of Turkish Clinical Biochemistry
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2010-12-01
Leyla Demir, Serap Çuhadar, Tuğba Öncel, Saliha Aksun, Figen Narin
Objective: First trimester screening tests are widely used for the diagnosis of chomosomal anomalies.
In our study, we investigated the effect of maternal smoking on first trimester screening tests in
pregnant women who applied to our laboratory.
Material and...
Journal of Turkish Clinical Biochemistry
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2021-12-01
Özlem Öztürk, Emre Karaşahin, İbrahim Alanbay, Muhittin Serdar, Mustafa Öztürk, Mutlu Ercan, Taner Özgürtaş, Kemal Erbil
Objective: Combine test (between the 11 th and 14th weeks of gestation) and triple test (between the 16
th and 18th weeks of gestation) are being used for trisomy 21 and trisomy 18 screening. We have
investigated the precision of fetal nuchal translucency (NT), free β HCG...
Journal of Turkish Clinical Biochemistry
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2010-08-01
Özlem Gülbahar, Ayşe Banu Çaycı, İrem Budakoğlu, Uğur Erçin, Neslihan Bukan, Hatice Paşaoğlu, Tuncay Nas
Objective: Gestational diabetes mellitus is one of the most frequent complications in pregnancy which may create a health risk for the mother and the child. Different criteria may be used in the diagnosis of gestational diabetes mellitus. In the present study we aimed to test...
Journal of Turkish Clinical Biochemistry
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2010-08-01
Adnan Yılmaz
Objective: The purpose of our study was to determine the median values of the triple test screening
parameters in pregnancy in our region.
Material and Methods: In this study we evaluated the serum alpha feto protein (AFP), unconjugated
estriol (uE3)...
Journal of Turkish Clinical Biochemistry
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2009-08-01
Figen Narin, Selda Yavaşcan, Nazmi Narin, Hülya Akgün, Ali Baykan, Kazım Üzüm, Recep Saraymen
Objective: The aim of this study was to evaluate the effects of nicotine on myocardium of newborn rats whose mothers received nicotine during gestation and lactation, by using biochemical and pathological parameters and to evaluate the role of antioxidant enzymes, free oxygen...
Journal of Turkish Clinical Biochemistry
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2006-08-01
Nahide Ekici Günay
Aim: To determine the current median values for hormone parameters used in first trimester screening
test for Kayseri province and to compare the median values with those in the software used for
reporting of screening test and those detected for other regions found with...
Journal of Turkish Clinical Biochemistry
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2019-08-01
Volkan Savaş, Tülay Köken
Objective: The unnecessary test requesting has significant effect in the laboratory workload. The
unnecessary demand and the additional cost of performed tests were discussed through the anemia
approach algorithm.
Materials and Methods: We...
Journal of Turkish Clinical Biochemistry
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2019-04-01
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
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DOI: 10.56615/tkbd.2023.12
İlyas Duran
Objective: The purpose of this study is to determine the median values of the triple test screening
parameters in pregnancy in Bingöl region, and to compare the median values determined for the
currently used programs and some other provinces.
Material and...
Journal of Turkish Clinical Biochemistry
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2017-08-01