Effect of Self-photoperiod on Live Weight, Carcass and Growth Traits in Quails (Coturnix Coturnix Japonica)

Coban, Omer,Lacin, Ekrem,Sabuncuoglu, Nilufer,Ozudogru, Zekeriya Asian Australasian Association of Animal Productio 2009 Animal Bioscience Vol.22 No.3

The weekly liveweight gain, growing and stress parameters of quails bred using two different types of lighting for 6 weeks following hatching were examined in this study. The first type of lighting was 23 L:1 D, continuous lighting (CL), widely used in the commercial system and the second was a self-photoperiod (SP) system consisting of a continuously lit chamber and a dark chamber the quails could move to as they wished. On the first 15 days, no difference was found in liveweight gain between the two breeding systems. On the $6^{th}$ week when the trial was completed, the liveweight of the male quails upon which CL lighting was used was 159.03 g while the weight of males in the SP group was 174.43 g; these values in female quails of the CL group were 179.15 g and in the SP group were 200.68 g. The CL group had lower testis volume (TVOM, $cm^{3}$) and testis weight (TW, g) than the SP group, however there was no difference between the groups in testis weight/body weight rate (BWTW %). In female quails, the ovary weight (OW, g) and the ovary weight/body weight rate (BWOW, %) values were higher in the SP group. The CL light regime was concluded to cause stress in male quails (CL, Heterophil/Lymphocyte ratio (H/L): 0.27; SP, H/L: 0.17). In conclusion; the SP system allowing the quails to regulate their light periods increased liveweight gain and enabled sexual maturity to be gained at an earlier period than in quail on the CL system and improved their welfare.

Association of Adipokines, Insulin Resistance, Hypertension and Dyslipidemia in Patients with Psoriasis Vulgaris

( Melis Coban ),( Levent Tasli ),( Sebahat Turgut ),( Seyma Ozkan ),( Melek Tunc Ata1 ),( Fulya Akın ) 대한피부과학회 2016 Annals of Dermatology Vol.28 No.1

Background: Systemic inflammation in psoriasis causes insulin resistance and cardiovascular diseases. Adipokines are adipose-tissue-derived factors that are involved in metabolic processes. It is thought that these adipokines are associated with the development of psoriasis. Objective: The purpose of this study was to determine the changes in adipokine levels, insulin resistance, hypertension, and dyslipidemia over a 12-week period. Methods: The study comprised 35 psoriasis patients and 50 controls. Blood samples were obtained twice from the patients, one sample at the start and one at the end of a 12-week follow-up period. The following parameters were assessed in both groups: serum fasting glucose, fasting insulin, homeostasis model assessment-estimated insulin resistance (HOMA-IR) index, serum lipids, adiponectin, leptin, resistin, chemerin, omentin, vaspin, visfatin, retinol-binding protein 4, and high-sensitivity C-reactive protein (hs-CRP) levels; blood pressure; body mass index; and the psoriasis area severity index (PASI) scores. Results: The patients showed an improvement in the PASI score and a significant decrease in serum hs-CRP, omentin, and chemerin values. Moreover, at the start of the follow-up, the psoriasis patients had significantly lower levels of adiponectin and visfatin and significantly higher levels of vaspin and resistin than those of the control group. Visfatin levels correlated negatively with low-density lipoprotein (LDL) and cholesterol, while vaspin and omentin levels correlated positively with diastolic blood pressure. Decreased adiponectin levels correlated negatively with diastolic blood pressure and LDL. Conclusion: Plasma levels of adipokines might be useful for evaluating the disease activity of psoriasis and its comorbidities.

Can continuous positive airway pressure improve lower urinary tract symptoms and erectile dysfunction in male patients with severe obstructive sleep apnea syndrome?

Soner Coban,Aygul Gunes,Abdullah Gul,Ali Riza Turkoglu,Muhammet Guzelsoy,Murat Ozturk,Osman Akyuz,Ozgur Ekici 대한비뇨의학회 2020 Investigative and Clinical Urology Vol.61 No.6

Purpose: We aimed to investigate the effect of continuous positive airway pressure (CPAP) administered for the treatment of obstructive upper airway on lower urinary tract symptoms and erectile dysfunction in male patients. Materials and Methods: A total of 626 male with suspected obstructive sleep apnea syndrome (OSAS) were evaluated prospectively. Nocturnal polysomnography tests were administered to the male. After application of the exclusion criteria, 54 patients with severe OSAS (Apnea-Hypopnea Index ≥30) were included in the study. International Prostate Symptom Score (IPSS), International Index of Erectile Function (IIEF-15), and nocturia were assessed in all patients before and after CPAP therapy, and prostate volume, total prostate-specific antigen (tPSA), and uroflowmetric measurements were assessed in patients aged >40 years. Results: The mean age of the 54 patients was 47.06±11.15 years. Post-treatment IIEF scores were better than pre-treatment scores (24.27±7.58 vs. 22.68±8.65, p=0.014). IPSS values, nocturia, and uroflowmetric outcomes significantly improved after CPAP therapy (p<0.05). On the other hand, mean values of body mass index, tPSA, prostate volume, and postvoid residual urine volume did not differ significantly after treatment. Conclusions: CPAP therapy improves lower urinary tract symptoms, nocturia, and erectile dysfunction in male with severe OSAS.

Effects of Egg Storage Material and Storage Period on Hatchability in Japanese Quail

Lacin, E.,Coban, O.,Sabuncuoglu, N. Asian Australasian Association of Animal Productio 2008 Animal Bioscience Vol.21 No.8

The present study aimed to determine the effects of different storage materials and storage period on some hatchability traits of Japanese quail (Coturnix coturnix japonica) eggs. A total of 32 male and 102 female quail (twelve weeks of ages) were housed in multiple-bird cages. Eggs laid were divided into three groups with respect to the period of storage (I = 1st, 2nd and 3rd days, II = 6th, 7th and 8th days, III = 12th, 13th and 14th days) prior to incubation. A total of 816 eggs was stored in 3 different storage environments during each storage period (B = no use of any storage material, P = use of perlite, H = use of hay) and kept in environmental conditions, where the temperature was $21^{\circ}C$ and relative humidity was 75%, prior to incubation. Statistical analyses were performed after the exclusion of values pertaining to non-fertile eggs (190 eggs) from the data set. The fertility rate of the eggs in the experiment was 76.7%. In the present study, the influence of storage material and different storage periods on egg weight loss were found to be statistically significant (p<0.01). Upon the comparison of hatchability of fertile eggs values, the influence of storage material was determined to be significant (p<0.05), and the influence of storage period was demonstrated to be significant (p<0.01). The storage materials used were determined not to have any influence on early and late embryonic death rates. Perlite was concluded to be safe for use in the storage of hatching eggs. The extension of the storage period (more than 8 days) resulted in decreased hatchability values of fertile eggs in each group.

The prognostic value of tumor budding in gastric adenocarcinomas: A cross-sectional study

Baydas Tuba,Coban Ganime,Besiroglu Mehmet,Simsek Melih,Shbair Abdallah TM,Topcu Atakan,Yasin Ayse Irem,Seker Mesut,Turk Haci Mehmet 소화기인터벤션의학회 2023 International journal of gastrointestinal interven Vol.12 No.2

Background: Tumor budding is a negative prognostic factor for many solid malignancies. We investigated the relationship between patients’ clinico-pathological characteristics and tumor budding, as well as the effect of budding level on prognosis. Methods: In this retrospective, cross-sectional, and descriptive study at a tertiary university hospital, 104 patients with gastric adenocarcinoma were divided into two groups according to whether they had a high (≥ 10 buds) or low (< 10 buds) level of budding. The patients were retrospectively evaluated.Results: Sixty-two patients had a low level of budding and 42 had a high level of budding. The mean time from the first diagnosis to the last follow-up was significantly longer (P < 0.05) in the low-budding group (27 months) than in the high-budding group (17 months). As the T stage, N stage, grade, and size of the tumor increased, the proportion of patients with high budding was found to be significantly higher (P < 0.05). High tumor budding, an age of 60 or over at diagnosis, a low body mass index, high N stage, presence of lymphovascular invasion, and recurrence were associ-ated with overall survival.Conclusion: Our study supports that budding is a negative prognostic factor in gastric cancer.

Acute Toxicity in Nasopharyngeal Carcinoma Patients Treated with IMRT/VMAT

Ozdemir, Sevim,Akin, Mustafa,Coban, Yasin,Yildirim, Cumhur,Uzel, Omer Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.5

Purpose: To evaluate acute toxicity in nasopharyngeal cancer (NPC) patients treated with intensity modulated radiotherapy (IMRT)/volumetric modulated arc therapy (VMAT) with or without cisplatin-based chemotherapy. Materials and Methods: A total of 45 newly diagnosed, histologically proven non-metastatic NPC patients treated with IMRT between May 2010 and December 2012, were evaluated retrospectively, 37 planned with Eclipse and 8 with Prowess Panther treatment planning system. The doses to the planning target volumes of primary tumor and involved lymph nodes, high risk region, and uninvolved regional nodal areas were 70 Gy, 60 Gy, and 54 Gy respectively and delivered simultaneously over 33 fractions to 39 patients. Another 6 patients irradiated with sequential boost technique. Some 84.4% of patients received chemotherapy. Acute toxicities were graded according to the Radiation Therapy Oncology Group scoring criteria and Common Terminology Criteria for Adverse Events (CTCAE) for chemotherapy side effects. Results: Median age was 43 years (14-79) and all patients were WHO type II. Grade 1 mucositis and dysphagia were observed in 17 (37.8%), and 10 (22.2%) patients, respectively. The incidence of acute grade 2 mucositis and dysphagia was 55.6% and 68.9%, respectively. The most common chemoradiotherapy related acute toxicities were nausea, leucopenia and thrombocytopenia. Grade 3 toxicity was detected in 13 (28.8%) cases. No grade 4 toxicity was occurred. Mean weight loss was 9%. None of the patients required the insertion of percutaneous endoscopic gastrostomy for nutritional support. Radiation therapy was completed without interruption in all patients. Conclusions: IMRT is a safe and effective treatment modality, and well tolerated by patients in the treatment of nasopharyngeal carcinoma. No unexpected side effects were observed.

Antioxidant Properties of Flavone-6(4')-Carboxaldehyde Oxime Ether Derivatives

Gulgun, Ayhan-Kilcigil,Coban, Tulay,Tuncbilek, Meral,Benay, Can-Eke,Oya, Bozda-Dundar,Ertan, Rahmiye,Iscan, Mumtaz The Pharmaceutical Society of Korea 2004 Archives of Pharmacal Research Vol.27 No.6

The in vitro antioxidant properties of some flavone-6(4)-carboxaldehyde oxime ether deriva-tives (Ia-f, lIa-f) were determined by their effects on the rat liver microsomal NADPH-dependent lipid peroxidation (LP) levels by measuring the formation of 2-thiobarbituric acid reactive substances. The free radical scavenging properties of the compounds were also examined in vitro by determining their capacity to scavenge superoxide anions and interact with the stable free radical 2, 2-diphenyl-1-picrylhydrazyl (DPPH). The most active compounds, lib (Flavone-4'-carboxaldehyde-O-ethyl oxime) and Id (Flavone-6-carboxaldehyde-O-[2-(1-pyrolidino) ethyl] oxime), caused 98 and 79% inhibition of superoxide anion production and DPPH stable free radical at $10^{-3}{\;}M$, respectively.

Can BAP1 expression loss in mesothelial cells be an indicator of malignancy?

Hanife Gulnihal Ozdemir,Sermin Coban Kokten,Nagehan Ozdemir Barisik 대한병리학회 2020 Journal of Pathology and Translational Medicine Vol.54 No.6

Background: Malignant mesothelioma is a highly aggressive tumor that can be confused with a benign mesothelial lesion, especially cytomorphologic lesions. BRCA1-associated protein 1 (BAP1) acts as a tumor suppressor. In this study, we aim to investigate the value of BAP1 staining of malignant mesothelioma cases with expression loss and diagnosis in cell block and biopsy tissue. Methods: Between January 2009 and March 2017, 64 mesotheliomas, 117 reactive mesothelial hyperplasias, and 20 fibrinous pleuritis/pericarditis were diagnosed with morphologic and immunohistochemical findings in our pathology clinic and were included in the study. Formalin-fixed, paraffin-embedded tissues were immunohistochemically examined for BAP1. Inflammatory and stromal cells were used as positive internal controls. BAP1 was assessed for nuclear staining in mesothelial cells. Results: Examinations of the relationship between patient diagnosis and BAP1 biopsy status showed that the BAP1 loss rate (76.6%) was significantly higher in malignant mesothelioma cases than in other benign diseases (0%) (p < .001). Sensitivity and specificity were 76.56% and 100%, respectively, for biopsy tissue from malignant mesothelioma. Sensitivity and specificity were both 100% for BAP1 test on cell block tissue. Furthermore, the consistency between BAP1 cell block and biopsy results was excellent (ĸ = 0.90) and the correlation was significant (p < .001). Conclusions: This study shows that BAP1 expression loss in both cytology and biopsy tissue in biopsy-confirmed malignant mesothelioma cases is an essential parameter for malignant mesothelioma diagnosis.

Can Narrow Band Chirp Stimulus Shake the Throne of 500 Hz Tone Burst Stimulus for Cervical Vestibular Myogenic Potentials?

Ocal F Ceyda Akin,Karacayli Ceren,Coban Volkan Kenan,Satar Bulent 대한청각학회 2021 Journal of Audiology & Otology Vol.25 No.2

Background and Objectives: The aim of the study was to compare effects of tone-burst (TB) and narrow-band (NB) Claus Elberling (CE)-chirp stimuli on amplitude, latency and interaural asymmetry ratio (IAR) of cervical vestibular evoked myogenic potentials (cVEMP) in healthy individuals.Subjects and Methods: The study included 50 healthy volunteers. cVEMP procedure was carried out using 500 Hz TB and NB-CE-chirp stimulus (360-720 Hz, up-chirp) in random order. cVEMP were recorded at 100 dB nHL. For each ear and each stimulus, P1 latency, N1 latency and P1N1 amplitude were measured. IAR was also calculated.Results: Mean age was 26.66±9.48 years. cVEMP’s in response to both TB and NB CE-chirp stimuli were obtained in all subjects. No statistically significant difference in P1 latency, N1 latency, and P1N1 amplitude was found between the right and left ears for both TB and NB CE-chirp stimuli (<i>p</i>>0.05). In both sides, P1 and N1 latencies were significantly shorter in NB CE-chirp stimulation compared to TB stimulation (<i>p</i>=0.000). In both sides, no statistically significant difference was found in P1N1 amplitude between two types of stimuli (<i>p</i>>0.05).Conclusions: The chirp stimulus produces robust but earlier cVEMP than TB does. This largest series study on NB chirp cVEMP shows that NB chirp is a good and new reliable alternative.

Thermo mechanical analysis of a ceramic coated piston used in a diesel engine

Ekrem Buyukkaya,Muhammet Cerit,Mehmet Coban 국제구조공학회 2016 Steel and Composite Structures, An International J Vol.21 No.2

The aim of this paper is to determine temperature and stress distributions in a ceramic based on Partially Stabilized Zirconia coated steel piston crown by using plasma spraying for improving performance of a marine diesel engine. Effects of coating constituent and thickness on temperature and stress distributions were investigated including comparisons with results from an uncoated piston by means of finite element method namely ANSYS. Temperature developed at the coated surface is significantly higher than that of the uncoated piston. The maximum stress components occur between bond coat and adjacent ceramic layer. Provided that coating thickness is constant as 0.5 mm, when numbers of layers increase, magnitude of the normal stress decrease about 34.1% on the base metal surface according to uncoated piston, but the base metal surface temperature of the steel piston increase about 13.1%.