Publications by authors named "Ayfer Colak"

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Evaluation of reference intervals for immunoglobulins in children using indirect methods.
Tuba Kansu Altan, İnanç Karakoyun, Ayfer Çolak, Deniz Ilhan Topcu

Am J Clin Pathol· December 2025

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Evaluation of Serum Neudesin Levels in Patients With Adrenal Incidentaloma.
Faruk Recep Özalp, Ayfer Çolak, Anıl Baysoy, Selin Onur, Veli İyilikçi

Cureus· June 2025

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Measuring the performance of an artificial intelligence-based robot that classifies blood tubes and performs quality control in terms of preanalytical errors: A preliminary study.
Ali Rıza Şişman, Banu İşbilen Başok, İnanç Karakoyun, Ayfer Çolak, Uğur Bilge

Am J Clin Pathol· June 2024

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Prevalence of endocrine disorders in 304 premenopausal women referred with oligomenorrhoea.
Hamiyet Yilmaz, Mustafa Demirpence, Umit Belet, Ibrahim Ozkiliç, Ayfer Colak

Endokrynol Pol· March 2024

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Stability of potassium, calcium and phosphorus electrolytes in three different tubes in patients with essential thrombocytosis.
Murat Aksit, Merve Zeytinli Aksit, Ayfer Colak, Banu Isbilen Basok, Cengiz Ceylan

Scand J Clin Lab Invest· December 2023

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Evaluation of the ischemia modified albumin levels in familial Mediterranean fever patients.
Yusuf Atabay, Zeynep Altın, Ayfer Çolak, Harun Akar

Ir J Med Sci· June 2023

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Can Serum 25-Hydroxy Vitamin D Levels Predict the Severity of Multisystem Inflammatory Syndrome in Children and COVID-19?
Yıldız Ekemen Keleş, Dilek Yılmaz, Selin Taşar, Gülnihan Üstündağ, Aslıhan Şahin

J Clin Res Pediatr Endocrinol· May 2023

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Serum neudesin levels in patients with polycystic ovary syndrome.
Hamiyet Yilmaz Yasar, Mustafa Demirpence, Ayfer Colak, Merve Zeytinli, Erdem Yasar

Ginekol Pol· March 2023

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Ischemia modified albumin levels in intrauterine growth restriction: levels are increased in fetal cord blood but not in maternal blood.
Ceren Gölbaşı, Hakan Gölbaşı, Ceysu Kocahakimoğlu Gültekin, Varol Gülseren, Merve Zeytinli Akşit

Ginekol Pol· January 2023

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Evaluation of D-dimer levels measured by different analytical methods in COVID-19 patients.
Fatma Demet Arslan, Banu Işbilen Başok, Mustafa Terzioğlu, Tuba Kansu Altan, Yeşer Karaca

Blood Coagul Fibrinolysis· June 2022

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Serum zinc levels in pediatric patients with COVID-19.
Yıldız Ekemen Keleş, Dilek Yılmaz Çiftdoğan, Ayfer Çolak, Ahu Kara Aksay, Gülnihan Üstündag

Eur J Pediatr· April 2022

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Usefulness of laboratory parameters and chest CT in the early diagnosis of COVID-19.
Ayfer Colak, Dilek Oncel, Zeynep Altın, Melda Turken, Fatma Demet Arslan

Rev Inst Med Trop Sao Paulo· April 2022

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Biological variation data for kidney function related parameter: serum beta trace protein, creatinine and cystatin C from 22 apparently healthy Turkish subjects.
Anil Baysoy, Inanc Karakoyun, Fatma Demet Arslan, Banu Isbilen Basok, Ayfer Colak

Clin Chem Lab Med· March 2022

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The relationship between serum pregnancy-associated plasma protein-A level in patients with aortic valve stenosis: a case-control study.
E Merve Girgin, Ayfer Colak, Ersin Cagri Simsek, Burak Toprak, Hülya Yalcin

Acta Cardiol· August 2021

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Association of Leptin Levels and Disease Activity in Patients with Early Rheumatoid Arthritis.
Ali Taylan, Baris Akinci, Burak Toprak, Merih Birlik, Fatma Demet Arslan, Ayfer Colak

Arch Med Res· July 2021

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Endothelial dysfunction in patients with myocardial ischemia or infarction and nonobstructive coronary arteries.
Ersin Cagri Simsek, Cenk Sari, Murat Kucukokur, Cenk Ekmekci, Ayfer Colak

J Clin Ultrasound· May 2021

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Can Ischemia Modified Albumin (IMA) Levels Be a Predictor of Acute Pancreatitis?
Hakan Yarkıcı, Gözde Derviş Hakim, Elif Merve Arı, Harun Akar, Ayfer Çolak

Turk J Gastroenterol· March 2021

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Diagnostic utility of C-reactive protein to albumin ratio as an early warning sign in hospitalized severe COVID-19 patients.
Inanc Karakoyun, Ayfer Colak, Melda Turken, Zeynep Altin, Fatma Demet Arslan

Int Immunopharmacol· February 2021

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The relationship of ischemia-modified albumin levels to disease activity scores and HLA-B27 in patients with ankylosing spondylitis.
Filiz Meryem Sertpoyraz, Ayfer Colak, Aylin Dikici, Nihan Erdinc Gunduz, Merve Zeytinli Aksit

North Clin Istanb· November 2020

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No association of serum PSA with vitamin D or total oxidant-antioxidant capacity in healthy men.
Burak Toprak, Ayfer Colak, Hulya Yalcin, Mustafa Yildirim

Aging Male· September 2019

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Serum irisin and apelin levels and markers of atherosclerosis in patients with subclinical hypothyroidism.
Hamiyet Yilmaz Yasar, Mustafa Demirpence, Ayfer Colak, Leman Yurdakul, Merve Zeytinli

Arch Endocrinol Metab· February 2019

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Apelin: A potential novel serum biomarker for early detection of diabetic nephropathy in patients with type 2 diabetes.
Mustafa Demirpence, Hamiyet Yilmaz, Ayfer Colak, Baris Onder Pamuk, Inanc Karakoyun

North Clin Istanb· August 2018

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Anemia considerations when assessing natriuretic peptide levels in ED patients.
Inanc Karakoyun, Ayfer Colak, Fatma Demet Arslan, Aybike Gunaslan Hasturk, Can Duman

Am J Emerg Med· November 2017

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Procalcitonin and CRP as Biomarkers in Discrimination of Community-acquired Pneumonia and Exacerbation of COPD.
Ayfer Çolak, Celalettin Yılmaz, Burak Toprak, Serir Aktoğu

J Med Biochem· April 2017

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The Effectiveness of Temperature Versus Aprotinin in Maintaining the Preanalytical Stability of Adrenocorticotrophin.
Hakan Turkon, Burak Toprak, Hulya Yalcin, Ayfer Colak, Nurinnisa Ozturk

Lab Med· November 2016

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