Yalçın Çelik

Learn More
The Ovsynch protocol was designed to synchronize ovulation, thereby allowing timed artificial insemination (TAI) of all cows without detection of estrus. However, the effectiveness of Ovsynch in different breeds of dairy cows has not been previously compared. The aim of this study was to compare the response to Ovsynch in cycling lactating Holstein-Friesian(More)
There is substantial evidence that the detection of T cells specific for the proteins ESAT-6 and CFP-10 using the ex vivo enzyme-linked immunospot technique is a marked improvement on the existing tuberculin skin test (TST). This new technique, which detects gamma-interferon-producing T cells, is now available as the commercial assay, T-Spot.TB. We compared(More)
Making a differential diagnosis between malignant and non-malignant ascites is an important clinical issue, but cytological examination has a relatively low diagnostic sensitivity. This study aimed to find a discriminative model that distinguished between malignancy-related and non-malignant ascites. The study included 107 patients: 50 with non-malignant(More)
Correlations between tumour markers in ascitic fluid and serum were investigated to determine whether ascitic fluid analysis had any diagnostic advantage over serum in 91 adults with ascites (55 malign; 36 benign). Serum and ascitic fluid were analysed for carcinoembryonic antigen (CEA), cancer antigen (CA) 125, CA19.9, CA72.4, CA15.3, alpha-fetoprotein(More)
Although necrotizing enterocolitis (NEC) is a frequently encountered entity in premature infants in the neonatal intensive care unit, intussusception is extremely rare. Abdominal distension, bilious/non-bilious gastric residuals and bloody stool are the common clinical findings of both entities. Here we present three cases of intussusception misdiagnosed as(More)
We investigated the role of leptin and asymmetric dimethylarginine (ADMA) in uncomplicated hypertension. We also investigated their relationship with insulin resistance and serum levels of several metabolic parameters, including homocysteine, lipoprotein(a) and malondialdehyde (MDA). A total of 34 untreated newly-diagnosed hypertensive patients (seven men(More)
OBJECTIVE This study aimed to determine the effect of pluripotent astrocytic stem cells (PASCs) and fibroblast growth factor-2 (FGF-2) on cognitive function in neonatal rats with hypoxic-ischemic brain injury (HIBI). METHODS The study was performed on 7-d-old rats that were randomly divided into four groups. All rats, except those in the sham group, were(More)
BACKGROUND Therapeutic hypothermia (TH) has become standard care in newborns with moderate to severe hypoxic ischemic encephalopathy (HIE), and the 2 most commonly used methods are selective head cooling (SHC) and whole body cooling (WBC). This study aimed to determine if the effects of the 2 methods on some neural and inflammatory biomarkers differ. (More)
BACKGROUND The aim of this study was to evaluate the effectiveness of tracheally delivered mesenchymal stem cells (MSC) on lung pathology in a hyperoxia-induced lung injury (HILI) model in neonatal rats. METHODS For the HILI model, rat pups were exposed to 85-95% oxygen during the first 10 days of life. Rats were divided into six groups: room-air normoxia(More)
BACKGROUND The aim of this study was to determine mortality risk by calculating Score for Neonatal Acute Physiology and Perinatal Extension II (SNAP-PE-II) and Clinical Risk Index for Babies (CRIB) score, and evaluate prediction of the effects of antenatal corticosteroid and surfactant treatment on mortality. METHODS This multicenter study was conducted(More)