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Öğe Arm circumference: Its importance for dialysis patients in the obesity era(2013) Akpolat T.; Kaya C.; Utaş C.; Arinsoy T.; Taşkapan H.; Erdem E.; Yilmaz M.E.; Ataman R.; Bozfakioglu S.; Özener C.; Karayaylali I.; Kazancioglu R.; Çamsari T.; Yavuz M.; Ersoy F.; Duman S.; Ateş K.Purpose: The purposes of this study were to investigate the association between arm circumference and body mass index (BMI) and to discuss problems, mainly arm circumference and cuff size mismatch, that could affect the reliability of home blood pressure monitoring (HBPM) among peritoneal dialysis (PD) and hemodialysis (HD) patients. Methods: 525 PD and 502 HD patients from 16 centers were included in the study. A two-part questionnaire was used to gather information from the participants. Arm circumferences were categorized into four groups according to the British Hypertension Society cuff size recommendations. Results: Mean BMI and arm circumference of all participants were 25.0 kg/m2 and 27.6 cm, respectively. There was a significant correlation between BMI and arm circumference. The mean BMI and arm circumference values were higher in PD patients than in HD patients. Requirement of a large-sized adult cuff was more common among PD patients compared to HD patients (14 % vs 8 %, p = 0.002). Conclusions: Since HBPM is a useful tool for clinicians to improve BP control, nephrologists should be aware of the problems related to HBPM in dialysis patients and take an active role to increase the reliability of HBPM. © 2012 Springer Science+Business Media, B.V.Öğe Assessing genetic diversity of some potato (Solanum tuberosum L.) genotypes grown in turkey using the AFLP marker technique(2010) Akkale C.; Yildirim Z.; Yildirim M.B.; Kaya C.; Öztürk G.; Tanyolaç B.In the present study, the level of polymorphism and the genetic relationships among 26 potato genotypes were studied by means of molecular markers using the amplified fragment length polymorphism (AFLP) technique. DNA was extracted from fresh leaves of the seedlings. Selective amplification products revealed a total of 191 polymorphic bands ranging from 8 to 45 for each combination. Scoring results were used to generate a tree in JMP software. The 26 samples formed six clades with varying number of members between one and eleven. Genetic distances among genotypes were calculated according to Jaccard's formula, in Phylip 3.0 software. According to the results of genetic distance, dendrogram showed that genotypes 6/7-4 and 6/7-2 were the closest genotypes with a genetic distance of 0.13. On the other hand, genotypes Posof-10 and Marabel were the most distinct from each other with a genetic distance value of 0.55. The AFLP marker results showed a great consistency along with their pedigrees indicating the AFLP technique as a useful tool in the calculation of genetic distance of the potato genotypes.Öğe The hypospadias profile inTurkey: A multicentric study [Türkiye'nin hipospadiyas profili: Çok merkezli Çalisma](2007) Karaman I.M.; Kaya C.; Özkovanci Ü.; Oktar T.; Emir H.; Ulman I.; Germiyanoglu C.; Dalkiliç A.; Taşçi A.I.; Göktas C.Introduction: Patients who underwent hypospadias repair in nine different centers were evaluated retrospectively. Materials and Methods: Between 2001 and 2006, 1483 patients with hypospadias, mean age of 5.8 years, who underwent hypospadias operation in nine different centers of Turkey, were enrolled to this epidemiological study. They were evaluated according to the localization of hypospadiac meatus, associated congenital anomalies, the type of operation technique, chordee status and hospitalization time. Results: It was realized that hypospadias was recognized by parents in 57%, by doctors in physical examination in 18%. 13% was noted during the birth, and 10% was recognized by an unlicensed traditional circumciser. 11% of patients had already been circumcised on admission and chordee was present in 24%. The location of hypospadiac meatus was glandular/ coronal in 38%, distal penile in 50%, proximal penile in 6% and penoscrotal in 6%. There were associated congenital external genital anomalies in 9.7%. While 77% of the patients underwent TIP urethroplasty, MAGPI was performed in 11%, Mathieu was performed in 5% and 105 patients underwent other surgical techniques. Urethral route was used in 1160 (78%) patients, while suprapubic route was used in 251 patients (17%) for urinary diversion. In 72 patients, no diversion was performed. The mean hospitalization time of patients was 3 days (1-20 day). Conclusion: Half of the cases with hypospadias were recognized by parents and 11% were found to have been circumcised before admission. While the incidence of associated congenital external genital organ anomalies was found to be lower than that of the literature, TIP urethroplasty was the most common technique in hypospadias repair. The hospitalization time was found to be higher than expected.Öğe Is there a gender gap in secondary prevention of coronary artery disease in Turkey? [Türkiye’de koroner arter hastalığından ikincil korunmada cinsiyet etkisi var mıdır?](Turkish Society of Cardiology, 2018) Koçyiğit D.; Tokgözoğlu L.; Kayıkçıoğlu M.; Altay S.; Aydoğdu S.; Barçın C.; Bostan C.; Çakmak H.A.; Çatakoğlu A.B.; Emet S.; Ergene O.; Kalkan A.K.; Kaya B.; Kaya C.; Kaymaz C.; Koylan N.; Kültürsay H.; Oğuz A.; Özpelit E.; Ünlü S.Objective: It has been reported that women receive fewer preventive recommendations regarding pharmacological treatment, lifestyle modifications, and cardiac rehabilitation compared with men who have a similar risk profile. This study was an investigation of the impact of gender on cardiovascular risk profile and secondary prevention measures for coronary artery disease (CAD) in the Turkish population. Methods: Statistical analyses were based on the European Action on Secondary and Primary Prevention through Intervention to Reduce Events (EUROASPIRE)-IV cross-sectional survey data obtained from 17 centers in Turkey. Male and female patients, aged 18 to 80 years, who were hospitalized for a first or recurrent coronary event (coronary artery bypass graft, percutaneous coronary intervention, acute myocardial infarction, or acute myocardial ischemia) were eligible. Results: A total of 88 (19.7%) females and 358 males (80.3%) were included. At the time of the index event, the females were significantly older (p=0.003) and had received less formal education (p<0.001). Non-smoking status (p<0.001) and higher levels of depression and anxiety (both p<0.001) were more common in the female patients. At the time of the interview, conducted between 6 and 36 months after the index event, central obesity (p<0.001) and obesity (p=0.004) were significantly more common in females. LDL-C, HDL-C or HbA1c levels did not differ significantly between genders. The fasting blood glucose level was significantly higher (p=0.003) and hypertension was more common in females (p=0.001). There was no significant difference in an increase in physical activity or weight loss after the index event between genders, and there was no significant difference between genders regarding continuity of antiplatelet, statin, beta blocker or ACEi/ARB II receptor blocker usage (p>0.05). Conclusion: Achievement of ideal body weight, fasting blood glucose and blood pressure targets was lower in women despite similar reported medication use. This highlights the importance of the implementation of lifestyle measures and adherence to medications in women. © 2018 Turkish Society of Cardiology.Öğe Pre-treatment with nanofiltration (NF) in seawater desalination-Preliminary integrated membrane tests in Urla, Turkey(Elsevier, 2015) Kaya C.; Sert G.; Kabay N.; Arda M.; Yüksel M.; Egemen T.In this study, the applicability of nanofiltration (NF) was investigated as a pre-treatment stage of reverse osmosis (RO) process for seawater desalination. The desalination performance of such integrated system was checked. Previously, NF (NF90 and NF270) and SWRO (SW30) membranes were used individually in the close-loop operation. Next, the NF permeate was collected using NF membrane by a continuous operation and then this permeate was used as a feed for a closed-loop SWRO system. The performances of single SWRO, NF and NF+RO integrated systems were compared in terms of permeate qualities and quantities. The results showed that permeate recovery of NF270 membrane was higher than that of NF90 membrane. However, the salt rejection of NF90 membrane was better than that of NF270. The single SW30-RO membrane showed an average rejection of 98.2% for salinity, while the permeate recovery value was only 28% at 55bar. Also the average permeate flux of single SW30-RO membrane was 30.1L/hm2. For the integrated system experiments, the highest permeate flux was found with NF90 (30bar)+SW30-RO (40bar) combination. Similar permeate flux values were obtained with single SW30-RO and NF90 (30bar)+SW30-RO (30) bar combination. The lowest permeate flux was found with NF270 (30bar)+SW30-RO (40bar) combination. Salinity was also highly rejected by all integrated system combinations. Permeate recovery values of integrated system combinations showed similar trend with permeate flux. Regarding permeate quality, it was seen that all integrated system combinations were better than single SW30-RO membrane. It was obtained that the permeate quality with NF90+SW30-RO combination was better than that with NF270+SW30-RO combination. © 2015 Elsevier B.V.Öğe Removal of tartaric acid by gel and macroporous ion-exchange resins(Taylor and Francis Inc., 2015) Kaya C.; Şahbaz A.; Arar Ö.; Yüksel Ü.; Yüksel M.Abstract: The objective of this study is to investigate the removal efficiency of tartaric acid from aqueous solution and wine waste by gel and macroporous ion-exchange resins. The resin amount and pH have an important effect on the removal rate. The maximum removal of tartaric acid was achieved at pH ? 4. Tartaric acid adsorption isotherms were analyzed using Langmuir and Freundlich models. The results obtained have shown that Langmuir model fits well for both resins. Sorption kinetics for these resins fit to Ho pseudo-second-order kinetics model. The hybrid precipitation-cation exchange resin system was used for recovery of tartaric acid from liquid wine wastes. The obtained results showed that hybrid system can be used as an alternative method for the recovery of tartaric acid. The 90% of tartaric acid was recovered by hybrid system. © 2014 Balaban Desalination Publications. All rights reserved.
