145 results on '"Gündüz E"'
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2. Investigation of Admitted Cases with Telepsychiatry Service in the COVID-19 Pandemic Process: A Child Psychiatry Clinic Experience
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Yıldırım Budak, Burcu, primary, Usta Gündüz, E. Başak, additional, Gözpınar, Nuran, additional, Çakıroğlu, Süleyman, additional, and Görmez, Vahdet, additional
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- 2023
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3. Protective effects of anise in prevention of cerebral ischemia reperfusion injury in rats.
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Yildizhan, E., Ozesmer, H., Inan, M. M., Tatli, F., Rencber, M., Akbas, A., Kamar, M., Gündüz, E., Baksi, N., Ulger, B. V., Akkuş, M., and Kaydu, A.
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- 2023
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4. Comparison of the effectiveness of cyclosporine and tacrolimus in preventing acute rejection and their effects on kidney functions.
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GÜNDÜZ, E. and KEMALOĞLU, C.
- Abstract
OBJECTIVE: The aim of this study is to compare the effects of cyclosporine (CsA) and tacrolimus (TAC) on preventing acute rejection and analyze the side-effect profiles of both agents, particularly on kidney functions. PATIENTS AND METHODS: In our study, 71 patients who underwent heart transplantation were included. For maintenance immunosuppression, 28 of these patients were treated with mycophenolate mofetil (MMF), steroid, and steroid CsA, and 43 of them were treated with MMF steroid and TAC. Endomyocardial biopsy results of the patients in the first month and the first year were compared. In the follow-ups, creatinine values and other parameters were recorded. RESULTS: Endomyocardial biopsy (EMB) performed at 1 month showed no rejection in 12 patients (42.9%) in the CsA group, grade 1R rejection in 15 patients (53.6%), and grade 2R rejection in one patient (3.6%). In the TAC group, rejection was not detected in 25 patients (58.1%), while grade 1R rejection was diagnosed in 17 patients (39.5%) and grade 2R rejection in 1 patient (2.3%) (p=0.4). In EMBs performed in the first year, 14 patients (51.9%) in the CsA group did not have rejection, 12 patients (44.4%) had grade 1R rejection, and one patient (3.7%) had grade 2R rejection. In the TAC group, grade 0R rejection was diagnosed in 23 patients (60.5%), grade 1R rejection in 15 patients (39.5%), and grade 2R rejection was not detected. Postoperative firstweek creatinine values, which were found to be higher in the CsA group, were significant compared to the TAC group (p=0.028). CONCLUSIONS: TAC and CsA are drugs that help prevent acute rejection after heart transplantation and can be used safely in heart transplant recipients. Neither drug is superior to the other in preventing rejection. TAC may be preferred to CsA as it has fewer negative effects on kidney functions in the early postoperative period. [ABSTRACT FROM AUTHOR]
- Published
- 2023
5. Symbiotic Bacteria Enable Insect to Use a Nutritionally Inadequate Diet
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Gündüz, E. Akman and Douglas, A. E.
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- 2009
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6. Spinal cord stimulation in patients with chronic low back pain without prior surgery - 'virgin back'
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Gündüz, E, Visser-Vandewalle, V, Matis, G, Gündüz, E, Visser-Vandewalle, V, and Matis, G
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- 2022
7. Bir Çocuk Psikiyatri Kliniği Deneyimi: COVID-19 Pandemi Sürecinde Telepsikiyatri Hizmeti ile Başvuran Olguların İncelenmesi.
- Author
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Budak, Burcu Yıldırım, Gündüz, E. Başak Usta, Gözpınar, Nuran, Çakıroğlu, Süleyman, and Görmez, Vahdet
- Abstract
Copyright of Turkish Journal of Child & Adolescent Mental Health / Çocuk ve Gençlik Ruh Sagligi Dergisi is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2023
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8. Acute kidney injury early after left ventricular assist device implantation: incidence, risk factors and clinical consequences.
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GÜNDÜZ, E.
- Abstract
OBJECTIVE: Renal dysfunction or renal failure is a common complication in patients undergoing a left ventricular assist device (LVAD). Measurement of serum creatinine and estimated glomerular filtration rate (eGFR) is the most commonly used inexpensive and easy method for the evaluation of kidney function. In studies, the development of acute kidney injury (AKI) after LVAD has generally been studied at 1, 3 months and 1 year, but there are almost no studies with 1-week data. PATIENTS AND METHODS: We retrospectively analyzed the incidence of AKI, risk factors, length of stay in hospital and intensive care unit (ICU), and postoperative complications of 138 patients who underwent LVAD implantation in our center between 2012 and 2021, according to Kidney Disease Improving Global Outcomes (KDIGO) criteria. We evaluated the preoperative, postoperative 1
st day, 2nd day, 1st week, 1st month, 3rd month and 1st year serum creatinine, eGFR and blood urea nitrogen (BUN) values. RESULTS: The mean age of 138 patients who underwent LVAD implantation and evaluated the development of AKI was 50.4 (±10.86) and 119 (86.2%) were males. The incidence of AKI, the need for renal replacement therapy (RRT) and dialysis after LVAD implant were respectively 25.4%, 25.3% and 12.3%. According to the KDIGO criteria, in the AKI (+) patient group, 21 (15.2%) cases were identified as stage 1, 9 (6.5%) as stage 2 and 5 (3.6%) as stage 3. The incidence of AKI was found to be high in cases with diabetes mellitus (DM), age, preoperative creatinine level ≥1.2, and eGFR ≤60 ml/min/m². There is a statistically significant relationship between having AKI and right ventricular (RV) failure (p=0.0033). Right ventricular failure developed in 10 (28.6%) of 35 patients who developed AKI. CONCLUSIONS: If perioperative AKI is recognized early, the development of advanced stages of AKI and mortality can be reduced with nephroprotective measures. [ABSTRACT FROM AUTHOR]- Published
- 2023
9. Protective effectiveness of anise against testicular ischemia and reperfusion injury: An experimental study in rats.
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Yildizhan, E., Akkus, M., Ulger, B. V., Asır, F., Söker, S., Gündüz, E., Rençber, M., and Barçin, M.
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- 2023
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10. Cognitive Facilitation and Antioxidant Effects of an Essential Oil Mix on Scopolamine-Induced Amnesia in Rats: Molecular Modeling of In Vitro and In Vivo Approaches
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Razvan Stefan Boiangiu, Oana Cioanca, Erdogan Orhan I, Gokcen Eren, Lucian Hritcu, Ertas H, Gündüz E, Ion Brinza, and Monica Hancianu
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Male ,Antioxidant ,medicine.medical_treatment ,Pharmaceutical Science ,Pharmacology ,medicine.disease_cause ,Antioxidants ,Analytical Chemistry ,memory ,chemistry.chemical_compound ,0302 clinical medicine ,Cognition ,Drug Discovery ,oxidative stress ,Donepezil ,Butyrylcholinesterase ,0303 health sciences ,biology ,Brain ,Acetylcholinesterase ,Chemistry (miscellaneous) ,language ,Molecular Medicine ,Aché ,Gas Chromatography-Mass Spectrometry ,Article ,scopolamine ,lcsh:QD241-441 ,03 medical and health sciences ,Inhibitory Concentration 50 ,lcsh:Organic chemistry ,In vivo ,medicine ,Oils, Volatile ,Animals ,Physical and Theoretical Chemistry ,Rats, Wistar ,molecular docking simulation ,030304 developmental biology ,Cholinesterase ,Memory Disorders ,Radial arm maze ,Organic Chemistry ,essential oil mix ,language.human_language ,Rats ,Disease Models, Animal ,chemistry ,Behavior Rating Scale ,biology.protein ,Amnesia ,Cholinesterase Inhibitors ,030217 neurology & neurosurgery ,Oxidative stress ,Limonene - Abstract
The present study investigated the capability of an essential oil mix (MO: 1% and 3%) in ameliorating amnesia and brain oxidative stress in a rat model of scopolamine (Sco) and tried to explore the underlying mechanism. The MO was administered by inhalation to rats once daily for 21 days, while Sco (0.7 mg/kg) treatment was delivered 30 min before behavioral tests. Donepezil (DP: 5 mg/kg) was used as a positive reference drug. The cognitive-enhancing effects of the MO in the Sco rat model were assessed in the Y-maze, radial arm maze (RAM), and novel object recognition (NOR) tests. As identified by gas chromatography&ndash, mass spectrometry (GC&ndash, MS), the chemical composition of the MO is comprised by limonene (91.11%), followed by &gamma, terpinene (2.02%), &beta, myrcene (1.92%), &beta, pinene (1.76%), &alpha, pinene (1.01%), sabinene (0.67%), linalool (0.55%), cymene (0.53%), and valencene (0.43%). Molecular interactions of limonene as the major compound in MO with the active site of butyrylcholinesterase (BChE) was explored via molecular docking experiments, and Van der Waals (vdW) contacts were observed between limonene and the active site residues SER198, HIS438, LEU286, VAL288, and PHE329. The brain oxidative status and acetylcholinesterase (AChE) and BChE inhibitory activities were also determined. MO reversed Sco-induced memory deficits and brain oxidative stress, along with cholinesterase inhibitory effects, which is an important mechanism in the anti-amnesia effect. Our present findings suggest that MO ameliorated memory impairment induced by Sco via restoration of the cholinergic system activity and brain antioxidant status.
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- 2020
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11. Effect of hyperparathyroidism on coagulation: a global assessment by modified rotation thromboelastogram (ROTEM)
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Akay, Olga Meltem (ORCID 0000-0002-6759-1939 & YÖK ID 170966), Yorulmaz, G.; Kalkan, A.T.; Akalın, A.; Alagüney, E.S.; Gündüz, E.; Badak, B.; Buyruk, B.A.; Kebapçı, N.; Efe, B.; Bilgin, M., School of Medicine, Akay, Olga Meltem (ORCID 0000-0002-6759-1939 & YÖK ID 170966), Yorulmaz, G.; Kalkan, A.T.; Akalın, A.; Alagüney, E.S.; Gündüz, E.; Badak, B.; Buyruk, B.A.; Kebapçı, N.; Efe, B.; Bilgin, M., and School of Medicine
- Abstract
Background/aim: hyperparathyroidism is an endocrine disorder characterized by hypercalcemia. Because of calcium’s effects on parathyroid glands, bone, intestines, and kidneys, it has an important place in homeostasis. The results of studies regarding hyperparathyroidism hemostasis are conflicting. Thromboelastography helps to evaluate all steps of hemostatic system. Our aim in this study was to investigate the possible role of hemostatic mechanisms in the development of thrombosis in hyperparathyroid patients with the modified rotation thromboelastogram (ROTEM). Materials and methods: twenty-two patients with primary hyperparathyroidism (PHPT) and 20 healthy controls were involved. This study was conducted in Eskisehir Osmangazi University Faculty of Medicine, Endocrinology and Hematology clinics for 2 years. The complete blood count, fibrinogen, D-dimer levels, prothrombin time, activated prothrombin time, and ROTEM parameters [clot formation time (CFT), clotting time (CT), and maximum clot formation (MCF)] were determined by two activated tests, INTEM and EXTEM analyses. A thromboelastographic evaluation was performed in the preoperative and postoperative (3 months after surgery) periods. Results: in INTEM assay, the CT (p = 0.012) and CFT (p = 0.07) values were increased in preoperative PHPT patients compared with the control group. Although there was a decrease in the postoperative CT and CFT values, no statistical difference was found. Conclusion: the prolongation of the CT and CFT values were consistent with a hypocoagulable state in patients with PHPT. Hyperparathyroidism causes a hypocoagulable state that can be successfully assessed by ROTEM. Hemostatic changes, do not seem to have an effect on increased cardiovascular mortality., NA
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- 2021
12. An unusual clinical manifestation in a factor IX deficient patient: orbital haemorrhage without trauma
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Teke, H. Ü., Akay, O. M., Gündüz, E., Tokmak, S., and Şaylisoy, S.
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- 2013
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13. CURCUMIN AND BAY 117085 ATTENUATES ADAMTS9 GENE EXPRESSION IN HUMAN CHONDROCYTES: H49
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Demircan, K, Hirohata, S, and Gündüz, E
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- 2010
14. AB1178 Is anti nuclear antobody test required correctly in daily practice? a choosing wisely analysis
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Üsküdar Cansu, D., primary, Üsküdar Teke, H., additional, Gündüz, E., additional, and Korkmaz, C., additional
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- 2018
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15. Benign rolandic epilepsy: neuropsychological findings
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Gündüz, E., Demirbilek, V., and Korkmaz, B.
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- 1999
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16. Effects of sleep quality, income level and comorbid conditions on quality of life in a Turkish elderly population: A multicentre study [Türk geriatrik popülasyonda uyku kalitesi, gelir durumu ve komorbiditenin yaşam kalitesine etkisi: çok merkezli çalişma]
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Gündüz E., Eskin F., Gündüz M., Bentli R., Selçuk E.B., Zengin Y., İcer M., Dursun R., Durgun H.M., Güllü M.N., Gürbüz H., Yeşil Y., Güloğlu C., and Hitit University
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Aged ,Comorbidity ,Quality of life ,Sleep - Abstract
Introduction: Our aim is to investigate the effects of sleep quality, income level and comorbid conditions on Quality of Life in a Turkish elderly population. Materials and Method: This multicentric study was performed in seven districts. A total of 1030 patients older than 65 years of age who applied to the internal medicine and geriatrics outpatient clinics of study centres between January and December 2014 were included. All patients underwent the Pittsburgh Sleep Quality Index and Quality of Life Assessment (Short Form 36) tests viaface to face interview method. The demographic properties of patients were also recorded during this interview. Results: The mean Quality of Life subscale scores, except for vitality, were significantly lower (p
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- 2015
17. Searching the frequency of the close kin marriage for the disability and the disabled people in adana's town Havutlu [Adana havutlu beldesinde özürlülük sıklıgı ve özürlülerde akraba evliligi sıklıgının Araştırılması]
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Akbaba M., Kis S.U., Nazlican E., Gündüz E., and Çukurova Üniversitesi
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Disability ,Relative Marriage ,Frequency - Abstract
Aim: The research is performed in Havutlu public health center in Yuregir county of Adana province. The purpose of this research is to determine the density, types and epidemiological properties of defectiveness in Havutlu public health center region. Method: It is a cross-sectional study. 708 people are selected randomly for the research from ETF. The density of defectiveness is detected as %23,3 for this research. The density of defectiveness in our research is detected higher than the most of the studies in the world. The mostly stated defect is visseral anomaly which is %51,6. The relative marriage density is found as %20,6. The results in our research are similar with the other studies. The defectiveness density is found as %44.5 from the childs of relative marriages and found as %17.8 from non-relative marriages. After statistical analysis it is determined that the defectiveness is significantly high in relatives (p
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- 2012
18. Post-Authorization Safety of Lenalidomide + Dexamethasone in Patients With Relapsed/Refractory Multiple Myeloma in Turkey
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Fıratlı Tuğlular, T., primary, Pehlivan, M., additional, Sarı, H. İ, additional, Ayyıldız, M.O., additional, Saydam, G., additional, Sönmez, M., additional, Kalayoğlu Beşışık, S., additional, Özgür, G., additional, Gürkan, E., additional, Kaynar, L., additional, Ali, R., additional, Özet, G., additional, Demirkan, F., additional, Öngören, S., additional, Özdoğu, H., additional, Gündüz, E., additional, Naci Tiftik, E., additional, Salim, O., additional, Turgut, M., additional, Hacıhanefioğlu, A., additional, Barbaros Üre, U, additional, Özdemir, E., additional, Altuntaş, F., additional, Şimşek, D., additional, Ulu, N., additional, and Beksaç, M., additional
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- 2015
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19. 197 LENALIDOMIDE TREATMENT IN 5Q(-) SYNDROME: A SINGLE CENTER EXPERIENCE
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Uskudar, H. Teke, primary, Andiç, N., additional, Gündüz, E., additional, Özpolat, S., additional, Aras, B. Durak, additional, and Akay, O., additional
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- 2015
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20. Investigaton of fecundity and sex ratio in the parasitoid Bracon hebetor say (Hymenoptera: Braconidae) in relation to parasitoid age
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Akman Gündüz E., Gülel A., and Ondokuz Mayıs Üniversitesi
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animal structures ,Fecundity ,Galleria mellonella ,Host ,fungi ,Sex ratio ,Ephestia kuehniella ,Parasitoid - Abstract
The effect of parasitoid age on fecundity and sex ratio in Bracon hebetor Say (Hymenoptera: Braconidae) was examined at 26 ± 2 °C and 60 ± 5% relative humidity. Galleria mellonella (L.) and Ephestia kuehniella (Zell.) were used as host species. It was found that the fecundity of the female parasitoid did not change significantly during the first 5 days of the female's lifespan but afterwards it decreased significantly. Under laboratory conditions, the offspring sex ratio was male biased on both host species. The fecundity of the female parasitoids reared on late stage larvae of G. mellonella was higher than that of those reared on E. kuehniella. © TÜBİTAK.
- Published
- 2005
21. Knochenregeneration durch kieferorthopädische Zahnbewegung – Follow-up-Untersuchung nach 4 Jahren mittels digitaler Volumentomografie
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Gündüz, E., additional, Bantleon, H.-P., additional, Crismani, A., additional, and Eryilmaz, H., additional
- Published
- 2015
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22. Identification, Synthesis, and Behavioral Activity of 5,11-Dimethylpentacosane, A Novel Sex Pheromone Component of the Greater Wax Moth, Galleria Mellonella (L.)
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Svensson, G. P., Gündüz, E. A., Sjöberg, Natalia, Hedenström, Erik, Lassance, J. -M, Wang, H. -L, Löfstedt, C., Anderbrant, O., Svensson, G. P., Gündüz, E. A., Sjöberg, Natalia, Hedenström, Erik, Lassance, J. -M, Wang, H. -L, Löfstedt, C., and Anderbrant, O.
- Abstract
The greater wax moth, Galleria mellonella (L.), is a serious and widespread pest of the honeybee, Apis mellifera L. In contrast to most moths, for which long-range mate finding is mediated by female-produced sex pheromones, G. mellonella males attract conspecific females over long distances by emitting large amounts of a characteristic scent in combination with bursts of ultrasonic calls. The male scent for this species was previously identified as a blend of nonanal and undecanal. When these compounds were bioassayed, characteristic short-range sexual behavior, including wing fanning, was triggered in conspecific females, but the aldehyde blend failed to elicit attraction over longer distances. We identified, via analysis and synthesis, a third male-specific compound, 5,11-dimethylpentacosane. We show that it acts as a behavioral synergist to the aldehydes. In wind tunnel experiments, very few female moths responded to the aldehyde blend or to 5,11-dimethylpentacosane tested separately, but consistently showed orientation and source contact when a combination of all three compounds was applied. The level of attraction to the three-component mixture was still lower than that to male extract, indicating that the composition of compounds in the synthetic blend is suboptimal, or that additional pheromone components of G. mellonella are yet to be identified. The identification of 5,11-dimethylpentacosane is an important step for the development of an efficient long-range attractant that will be integrated with other environmentally safe strategies to reduce damage to beehives caused by wax moths. © 2014 Springer Science+Business Media New York., Language of Original Document: English
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- 2014
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23. Prävention von Zahnverletzungen durch Mundschutze
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Gündüz, E., additional, Freudenthaler, J., additional, Strbac, G., additional, and Bantleon, H.-P., additional
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- 2014
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24. THU0470 The Relationship between Cytosine-Adenine Repeat Polymorphism in the Promoter Region of Adamts 9 (A Distintegrinand Metalloproteinase with Thrombospondin Motif 9) Gene and Clinical and Radiologic Severity of Knee Osteoarthritis
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Gok, K., primary, Cemeroglu, O., additional, Cakirbay, H., additional, Gündüz, E., additional, Acar, M., additional, Cetin, E.N., additional, Gunduz, M., additional, and Demircan, K., additional
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- 2014
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25. Analyse vertikaler Gesichtsveränderungen mithilfe von Panoramaröntgenaufnahmen
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Sancak, Ö., additional, Özdiler, E., additional, Gündüz, E., additional, Köklü, A., additional, and Bantleon, H.-P., additional
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- 2012
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26. F717 PULSED RADIOFREQUENCY TREATMENT TO SPHENOPALATINE GANGLION IN PATIENTS SUFFERING FROM CHRONIC FACE-HEAD PAIN
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Gündüz, E., primary
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- 2011
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27. Symbiotic bacteria enable insect to use a nutritionally inadequate diet
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Akman Gündüz, E, primary and Douglas, A.E, additional
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- 2008
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28. Direct sonication of acetic acid in aqueous solutions
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Fındık, S., primary, Gündüz, G., additional, and Gündüz, E., additional
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- 2006
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29. Die Behandlung einer Kl.-III-Malokklusion als Beispiel für die Camouflage-Therapie. Ein Fallbericht
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Crismani, A. G., primary, Bernhart, Th., additional, Crismani, M. C., additional, and Gündüz, E., additional
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- 2001
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30. MRI Findings in Succinic Semialdehyde Dehydrogenase Deficiency
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Yalçınkaya, C., primary, Gibson, K. M., additional, Gündüz, E., additional, Koçer, N., additional, Fıçıcıoğlu, C., additional, and Küçükercan, I, additional
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- 2000
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31. Knochenregeneration durch kieferorthopädische Zahnbewegung -- Follow-up-Untersuchung nach 4 Jahren mittels digitaler Volumentomografie.
- Author
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Gündüz, E., Bantleon, H.-P., Crismani, A. G., and Eryilmaz, H. K.
- Published
- 2014
- Full Text
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32. An acousto-optic modulator with a liquid crystal
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Karapinar, R., primary and Gündüz, E., additional
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- 1994
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33. Effect of hypoglycemic drugs on aspirin resistance in patients with diabetes mellitus.
- Author
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Ariturk, Z., Islamoglu, Y., Gündüz, E., Yavuz, C., H. Cil, Tekbas, E., Soydinc, S., Kaya, H., and Elbey, M. A.
- Abstract
Background: Aspirin reduces the odds of an arterial thrombotic event in highrisk patients. However, 10%-20% of patients with an arterial thrombotic event who are treated with aspirin have a recurrent arterial thrombotic event during long-term followup. Aspirin resistance has been described in some patient populations such as those with an acute coronary syndrome, ischemic stroke, percutaneous coronary intervention with drug-eluting stent, stent re-stenosis, and diabetes mellitus (DM). The aim of this study was to assess aspirin resistance and to compare it to the use of oral anti-diabetic drugs and insulin in patients with diabetes. Methods and Results: Platelet aggregation was measured after aspirin treatment in 101 diabetic patients undergoing percutaneous coronary intervention. Two patient populations were included in the investigation: use of insulin (group 1) and use of oral anti-diabetic agents (OAD) (group 2) in diabetic patients. Platelet aggregation was determined using a multichannel Multiplate analyzer. Among group 1 patients, 4.7% were aspirin non-responders and among group 2 patients, 8.6% were aspirin non-responders. Statistical differences were not found between the groups (p = 0.359). Conclusions: This study demonstrated that there was no significant difference in aspirin resistance between type 2 diabetes mellitus patients on insulin treatment and type 2 diabetes mellitus patients on OAD treatment. [ABSTRACT FROM AUTHOR]
- Published
- 2012
34. ULTRASOUND INSTABILITIES IN SMECTIC A
- Author
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SCUDIERI, F., primary, FERRARI, A., additional, and GÜNDÜZ, E., additional
- Published
- 1979
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35. Stem Cell Therapy for Congestive Heart Failure
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Gunduz E, Akay OM, Birdane A, and Gulbas Z
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Medicine ,Medicine (General) ,R5-920 - Abstract
IntroductionHeart failure is a major cardiovascular health problem. Coronary artery disease is the leading cause of congestive heart failure (CHF) [1]. Cardiac transplantation remains the most effective long-term treatment option, however is limited primarily by donor availability, rejection and infections. Mechanical circulatory support has its own indications and limitations [2]. Therefore, there is a need to develop more effective therapeutic strategies.Recently, regenerative medicine has received considerable scientific attention in the cardiovascular arena. We report here our experience demonstrating the beneficial effects of cardiac stem cell therapy on left ventricular functions in a patient with Hodgkin’s lymphoma (HL) who developed CHF due to ischemic heart disease during the course of lymphoma treatment. Case reportA 58-year-old male with relapsed HL was referred to our bone marrow transplantation unit in October 2009. He was given 8 courses of combination chemotherapy with doxorubicin, bleomycin, vincristine, and dacarbazine (ABVD) between June 2008 and February 2009 and achieved complete remission. However, his disease relapsed 3 months after completing the last cycle of ABVD and he was decided to be treated with DHAP (cisplatin, cytarabine, dexamethasone) followed autologous stem cell transplantation (SCT). After the completion of first course of DHAP regimen, he developed acute myocardial infarction (AMI) and coronary artery bypass grafting (CABG) was performed. After his cardiac function stabilized, 3 additional courses of DHAP were given and he was referred to our centre for consideration of autologous SCT. Computed tomography scans obtained after chemotherapy confirmed complete remission. Stem cells were collected from peripheral blood after mobilization with 10 µg/kg/day granulocyte colony-stimulating factor (G-CSF) subcutaneously. Collection was started on the fifth day of G-CSF and performed for 3 consecutive days. Flow cytometric analysis of CD 34 was used to identify hematopoietic stem cells. During the last evaluation before stem cell transplantation, conventional echocardiogram (ECHO) revealed left ventricular systolic dysfunction with an ejection fraction of ALEF: 44%, MODEF: 45%, MUGA scan showed a decreased left ventricular ejection fraction (LVEF: 43%) (Figure 1). In view of these findings, the patient was found ineligible for SCT and he was offered to give his peripheral blood stem cells for the treatment of heart failure. After receiving the patient’s signed informed consent form, a total number of 3.49x106/kg CD 34+ cells were infused via antecubital vein. Echocardiographic studies performed 2 months after stem cell therapy revealed a similar ejection fraction rate while a significant improvement in left ventricular ejection fraction (ALEF: 55%, MODEF: 57%) was noticed in ECHO performed 7 months after stem cell therapy (Figure 2).EF values at various time periods are shown on Table 1. Myocardial perfusion scintigraphy was also performed and showed infarction containing viable tissue in inferior wall (Figure 3). Myocardial positron emission tomography revealed that glucose metabolism was conserved in inferior wall.HL was in complete remission in the 2 months follow up after SCT but SCT for HL was not contemplated because renal failure due to chemotherapy developed later. Discussion Here, we reported a patient with HL who was ineligible for SCT because of low LVEF due to AMI. LVEF was low despite CABG. Collected stem cells were used as a stem cell therapy for heart failure since he was ineligible for SCT directed to treat HL. Although intravenous infusion of stem/progenitor cells are not favoured any more and intracoronary infusion or intramyocardial injections are preferred in latest reports [3] our data supports this route can still be effective. The objective of stem cell therapy in CHF due to ischemic heart disease is to repopulate post-infarction scar tissue with contractile cells that can engraft in sufficient numbers to differentiate to the cardiac myocytes and restore functionality in these akinetic areas. Hematopoietic stem cells consist can differentiate to skeletal and myocardial cells when cultured under appropriate conditions [4]. Strauer et al [5] reported that intracoronary bone marrow stem cell therapy improves ventricular performance, quality of life and survival in patients with chronic heart failure. Hamano et al [6] showed in 5 patients that autologous bone marrow cells can be injected safely during a by-pass operation into areas of ischemic myocardium. Brehm et al [7] have treated 23 patients with acute cardiac infarction using autologous mononuclear bone marrow cells. Ozbaran et al [8] transplanted peripheral blood stem cells into areas of injury with open-heart surgery in six patients with ischemic cardiomyopathy. There are also meta-analysis on ongoing clinical trials performed. Abdel-Latif et al [9] described a statistically significant improvement in ejection fraction, reduction in infarct size and left ventricular end-systolic volume in 18 patients treated with either unseparated bone marrow cells, bone marrow mesenchymal and mobilized peripheral blood cells. Martin-Rendon et al focused on 13 randomized studies encompassing 811 participants on bone marrow therapy for post acute infarction. Improvement in LVEF, decrease in left ventricular and systolic and end diastolic volumes and infarct size were observed. The reason for choice of intravenous route was being the standard way of giving hematopoietic stem cells by hematologists. We tried to decide the availibility of this route for indications other than hematological diseases. Although trapping of stem cells in the pulmonary vascular bed is a drawback of intravenous route and the question of whether the patient would have been more benefited by intracoronary or intramyocardial route remains unanswered, we think intravenous route may still have some role according to our own experience from this patient. ConclusionStudies in the era of cardiac stem cell therapy are heterogenous. It is not yet possible to comment on the most appropriate stem cell type and route of administration. When we assess the results from literature and the improvement in our own patient we think stem cell therapy can be an option for bridging to heart transplantation or an adjuvant therapy for CHF.References1.Ohnishi S, Ohgushi H, Kitamura S, Nagaya N. Mesenchymal stem cells for the treatment of heart failure. Int J Hematol 2007; 86: 17-21.2.Bukharovich IF, Kukin M. Optimal medical therapy for heart failure. Prog Cardiovasc Dis 2006; 48: 372-385.3.Tongers J, Losordo DW, Landmesser U. Stem and progenitor cell-based therapy in ischaemic heart disease: promise, uncertainties and challenges. Eur Heart J 2011. Epub ahead of print.4.Krause DS, Theise ND, Collector MI, Henegariu O, Hwang S, Gardner R, Neutzel S, Sharkis SJ. Multi-organ, multi-lineage engraftment by a single bone marrow-derived stem cell. Cell 2001; 105:369-377.5.Strauer BE, Yousef M, Schannwell CM. the acute and long term effects of intracoronary stem cell transplantation in 191 patients with chronic heart failure: the STAR-heart study. Eur J Heart Fail 2010; 12:721-729.6.Hamano K, Nishida M, Mirata K, Mikarno A, Li TS, Harada M, Miura T, Matsuzaki M, Esato K. Local implantation of autologous bone marrow cells for therapeutic angiogenesis in patients with ishemic heart disease: clinical trial and preliminary results Jpn Circ J. 2001; 65:845-847.7.Brehm M, Zeus T, Strauer BE. Stem cells-clinical application and perspectives. Herz 2002; 27:611-620.8.Ozbaran M, Omay SB, Nalbantgil S, Kultursay H, Kumanlioglu K, Nart D, Pektok E. Autologous peripheral stem cell transplantation in patients with congestive heart failure due to ischemic heart disease. Eur J Cardiothorac Surg. 2004; 25:342-350.9.Abdel-Latif A, Bolli R, Tleyjeh IM, Montori VM, Perin EC, Hornung CA, Zuba-Surma EK, Al-Mallah M, Dawn B. Adult bone marrow derived cells for cardiac repair: a systematic review and meta-analysis. Arch Intern Med. 2007; 167:989-997.10.Martin-Rendon E, Brunskill S, Doree C, Hyde C, Watt S, Mathur A, Stanworth S. Stem cell treatment for acute myocardial infarction. Cochrane database Syst Rev 2008; CD006536.
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- 2011
36. Protective effect of wolfberry extract on acetic acid-induced colitis in rats
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Yılmaz Zengin, C Guloglu, U Alabalık, I Kaplan, R Dursun, Mustafa İçer, E Gunduz, Hasan Mansur Durgun, Dicle Üniversitesi, Tıp Fakültesi, Dahili Tıp Bilimleri Bölümü, Acil Tıp Ana Bilim Dalı, İçer, M., Gündüz, E., Zengin, Y., Dursun, R., Durgun, Hasan Mansur, Alabalık, U., Kaplan, I., and Güloğlu, C.
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Wolfberry ,business.industry ,General Medicine ,Berry ,Pharmacology ,medicine.disease ,Acute colitis ,Acetic acid ,chemistry.chemical_compound ,chemistry ,Medicine ,Colitis ,Antioxidant ,business - Abstract
Objective: To investigate the protective effect of wolfberry (WB) against acetic acid-induced colitis in rats. Methods: The rats were divided into four groups with eight rats in each group: the control group, WB group, colitis group and WB + colitis group. Distal colitis was induced in rats by intracolonic instillation of 4% acetic acid. Woliberry + colitis group received 100 mg/kg of WB extract dissolved in saline through the intraperitoneal route for 7 days. Acute colitis was created on the 8th day, and the rats were sacrificed 48 hours later Colonic damage was assessed by macroscopic and histological criteria as well as biochemical markers. Results: Mean total antioxidant capacity (TAC), total oxidant status (TOS), tumour necrosis factor (TNF)-alpha, interleukin (IL)-1 beta and IL-6 levels were significantly higher in the colitis group compared with the control and WB groups (p < 0.05). The WB + colitis group had significantly lower TAC, TOS, TNF-alpha, IL-1 beta and IL-6 levels compared with the colitis group (p < 0.05). The analyses of the histopathological findings indicated that the colitis group had a significantly higher histopathological damage score than the control group (3.12 +/- 0.45, 0 +/- 0.00, respectively; p < 0.05). Histopathological damage score was significantly higher in the WB + colitis group than in the control group and statistically significantly lower than the colitis group (1.62 +/- 0.44, 0 +/- 0.00, respectively; 3.12 +/- 0.45, respectively; p < 0.05 for both comparisons). Conclusion: Wolfberry extract is an agent that is effective for preventing acetic acid-induced colitis in rats.
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- 2021
37. Effect of hyperparathyroidism on coagulation: a global assessment by modified rotation thromboelastogram (ROTEM)
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Aysen Akalin, Ahmet Toygar Kalkan, Elif Sevil Alagüney, Olga Meltem Akay, Muzaffer Bilgin, Bartu Badak, Goknur Yorulmaz, Eren Gündüz, Fatma Belgin Efe, Medine Nur Kebapci, Betul Aydin Buyruk, Akay, Olga Meltem (ORCID 0000-0002-6759-1939 & YÖK ID 170966), Yorulmaz, Göknur, Kalkan, Ahmet Toygar, Akalın, Ayşen, Alagüney, Elif Sevil, Gündüz, Eren, Badak, Bartu, Buyruk, Betül Aydın, Kebapçı, Nur, Efe, Belgin, Bilgin, Muzaffer, School of Medicine, Yorulmaz, G., Kalkan, A.T., Akalın, A., Alagüney, E.S., Gündüz, E., Badak, B., Buyruk, B.A., Kebapçı, N., Efe, B., and Bilgin, M.
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Male ,medicine.medical_specialty ,Hyperparathyroidism ,Coagulation ,Thromboelastogram ,ROTEM ,Rotation ,endocrine system diseases ,Fibrinogen ,Gastroenterology ,Hemostatics ,Internal medicine ,medicine ,Humans ,Blood Coagulation ,Prothrombin time ,medicine.diagnostic_test ,business.industry ,General and internal medicine ,Complete blood count ,General and internal medicinel ,General Medicine ,Middle Aged ,medicine.disease ,Thrombosis ,Thromboelastography ,Thrombelastography ,Hemostasis ,Female ,Blood Coagulation Tests ,business ,Primary hyperparathyroidism ,medicine.drug - Abstract
Background/aim: hyperparathyroidism is an endocrine disorder characterized by hypercalcemia. Because of calcium’s effects on parathyroid glands, bone, intestines, and kidneys, it has an important place in homeostasis. The results of studies regarding hyperparathyroidism hemostasis are conflicting. Thromboelastography helps to evaluate all steps of hemostatic system. Our aim in this study was to investigate the possible role of hemostatic mechanisms in the development of thrombosis in hyperparathyroid patients with the modified rotation thromboelastogram (ROTEM). Materials and methods: twenty-two patients with primary hyperparathyroidism (PHPT) and 20 healthy controls were involved. This study was conducted in Eskisehir Osmangazi University Faculty of Medicine, Endocrinology and Hematology clinics for 2 years. The complete blood count, fibrinogen, D-dimer levels, prothrombin time, activated prothrombin time, and ROTEM parameters [clot formation time (CFT), clotting time (CT), and maximum clot formation (MCF)] were determined by two activated tests, INTEM and EXTEM analyses. A thromboelastographic evaluation was performed in the preoperative and postoperative (3 months after surgery) periods. Results: in INTEM assay, the CT (p = 0.012) and CFT (p = 0.07) values were increased in preoperative PHPT patients compared with the control group. Although there was a decrease in the postoperative CT and CFT values, no statistical difference was found. Conclusion: the prolongation of the CT and CFT values were consistent with a hypocoagulable state in patients with PHPT. Hyperparathyroidism causes a hypocoagulable state that can be successfully assessed by ROTEM. Hemostatic changes, do not seem to have an effect on increased cardiovascular mortality., NA
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- 2021
38. Protective effect of montelukast sodium in acute ethyl alcohol-induced hepatic injury in rats
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G Turkcu, C Guloglu, Mustafa İçer, E Gunduz, H Yuksel, R Dursun, A Ozhasenekler, Yılmaz Zengin, Murat Orak, Dicle Üniversitesi, Tıp Fakültesi, Dahili Tıp Bilimleri Bölümü, Acil Tıp Ana Bilim Dalı, Zengin, Y., İçer, M., Gündüz, E., Dursun, R., Türkçü, G., Yüksel, H., Orak, M., and Güloğlu, C.
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0301 basic medicine ,business.industry ,Hepatotoxicity ,Alcohol ,General Medicine ,Pharmacology ,Montelukast sodium ,03 medical and health sciences ,chemistry.chemical_compound ,Ethyl alcohol ,030104 developmental biology ,chemistry ,Anesthesia ,Montelukast Sodium ,Medicine ,Rat ,business - Abstract
Objective: Ethyl alcohol (EA) is a substance that is used commonly worldwide and known to have toxic effects on the liver The aim of this study was to investigate the effect of montelukast sodium (MK) on acute hepatopathy induced by a single dose of EA in rats. Methods: The study consisted of four groups each containing eight Wistar albino male rats. The groups were classified as follows: the control group received distilled water; the EA group received 6 g/kg EA diluted with distilled water orally by gavage; the MK group received 30 mg/ kg MK orally by gavage; the EA + MK group received, 2 hours after the EA administration, ie 30 mg/kg MK orally by gavage. After 24 hours, all the rats were sacrificed, and their blood and liver tissue samples were taken for biochemical and histopathological examinations. Results: The administration of EA caused a statistically significant increase in aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels compared with the control group (220.50 +/- 66.90 and 92.38 +/- 5.90 versus 84.88 +/- 15.66 and 43.75 +/- 10.22). The administration of EA + MK caused a statistically significant decrease in the AST and ALT levels compared with the EA alone group. Ethyl alcohol administered to the rats caused lesion in the liver including congestions, hydropic degeneration and irregular shaped area caused coagulation necrosis. The histopathological changes seen in the EA group were not detected in the EA + MK group. Conclusion: Consequently, these data suggested that MK had beneficial effects in alleviating EA-induced hepatotoxicity in rats.
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- 2021
39. Preliminary limnological assessment on the shallow lagoon lake Çernek (Samsun, Turkey): Plankton composition and in relation to physical and chemical variables
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Demirkalp, FY, Caglar, SS, Saygi, Y, Gunduz, E, Kaynas, S, Kilinc, S, Demirkalp, F.Y., Hacettepe University, Faculty of Science, Dept. of Biology, 06532, Beytepe-Ankara, Turkey -- Ça?lar, S.S., Hacettepe University, Faculty of Science, Dept. of Biology, 06532, Beytepe-Ankara, Turkey -- Saygi, Y., Hacettepe University, Faculty of Science, Dept. of Biology, 06532, Beytepe-Ankara, Turkey -- Gündüz, E., Hacettepe University, Faculty of Science, Dept. of Biology, 06532, Beytepe-Ankara, Turkey -- Kaynaş, S., Hacettepe University, Faculty of Science, Dept. of Biology, 06532, Beytepe-Ankara, Turkey -- Kilinç, S., Cumhuriyet University, Faculty of Science, Dept. of Biology, Sivas, Turkey, and Hacettepe Univ, Fac Sci, Dept Biol, TR-06532 Beytepe, Turkey -- Cumhuriyet Univ, Fac Sci, Dept Biol, Sivas, Turkey
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Çernek Lake ,Primary production ,Turkey ,Limnology ,Phytoplankton ,Cernek Lake ,Physical and chemical characters ,Zooplankton - Abstract
WOS: 000222548100007, Cernek Lake is one of the most valuable wetlands of Northern Turkey. The lake and the surrounding wetlands are characterized by a high degree of biodiversity with reference to the species and natural habitats, so it has been recognized as a "Ramsar Site". The lake is a typical shallow lagoon lake, which is subjected to human activities such as discharge of sewage. In order to evaluate the biotic community and estimate the pollution level, the physical and chemical variables and plankton dynamics were investigated during the study period. The plankton composition was typical for an eutrophic ecosystem. Cyanophyta and Chlorophyta. mainly were the dominant algal assemblages in terms of abundance. The zooplankton community was dominated by Rotifers (Brachionus and Keratella), whereas small Cladocera (Chydorus sphaericus and Bosmina longirostris) was also important in fall months. Primary production ranged between 569 and 4303 mg C m(-2) day(-1), while chlorophyll a ranged between 4.12 and 541.5 mg m(-3). The chlorophyll a content indicated also that the lake was eutrophic with hypertrophic tendency.
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- 2004
40. The prognostic value of HALP score and sPESI in predicting in-hospital mortality in patients with pulmonary thromboembolism.
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Yaman M, Orak M, Durgun HM, Tekin V, Ülgüt ŞG, Belek S, Günel BT, Üstündağ M, Güloğlu C, and Gündüz E
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- Humans, Female, Male, Middle Aged, Retrospective Studies, Prognosis, Aged, Risk Assessment, Hemoglobins analysis, Hemoglobins metabolism, Serum Albumin analysis, Serum Albumin metabolism, Platelet Count, Pulmonary Embolism mortality, Pulmonary Embolism diagnosis, Pulmonary Embolism blood, Hospital Mortality, Severity of Illness Index
- Abstract
Background: Pulmonary thromboembolism (PTE), often arising from deep vein thrombosis, remains a high-mortality condition despite diagnostic advancements. Prognostic models like Pulmonary Embolism Severity Index (PESI) and sPESI identify low-risk groups effectively. The Hemoglobin, Albumin, Lymphocyte, and Platelet (HALP) score, reflecting nutritional status and systemic inflammation, shows prognostic value in cancers and cardiovascular diseases. This study examines the relationship between in-hospital mortality HALP score and simplified PESI (sPESI) in PTE patients., Methods: This retrospective observational study included patients diagnosed with PTE in the emergency department of a tertiary medical faculty from 2018 to 2023. PTE diagnosis was confirmed via computed tomography pulmonary angiography. Data on transthoracic echocardiography, D-dimer levels, demographics, laboratory results, PESI, sPESI, and HALP scores, and in-hospital mortality were collected., Results: In this study, clinical characteristics of 171 patients with PTE were analysed. The average age was 61.88 ± 19.94 years, and 53.2% were female. Mortality was observed in 19.3% of patients. PESI and sPESI scores were significant predictors of mortality, with area under the curve values of 0.938 and 0.879, respectively. PESI score > 175.50 indicated a significantly higher mortality risk (HR = 18.208; P < .001), while sPESI >2.50 was also a strong predictor (HR = 11.840; P < .001). No significant cut-off value for HALP in predicting mortality was identified., Conclusions: Our study supports the reliability of sPESI and PESI scores in predicting in-hospital mortality in PTE patients. However, the prognostic value of the HALP score requires further investigation. Our findings highlight the need for developing risk stratification models. Key message What is already known on this topic? The PESI and sPESI scores are established prognostic models that effectively identify low-risk groups in patients with PTE. The HALP score, reflecting nutritional status and systemic inflammation, has shown prognostic value in cancer and cardiovascular diseases. What this study adds? This study demonstrates that while PESI and sPESI scores are significant predictors of in-hospital mortality in PTE patients, the HALP score does not have a significant cut-off value for predicting mortality. How this study might affect research, practice, or policy? The findings support the continued use of PESI and sPESI scores for risk stratification in clinical practice, potentially influencing guidelines and policies on managing PTE. Further research into the HALP score's role in other contexts may refine its prognostic utility., (© The Author(s) 2024. Published by Oxford University Press on behalf of Fellowship of Postgraduate Medicine. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
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- 2024
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41. Survival Outcomes of Patients with Primary Plasma Cell Leukemia in the Era of Proteasome Inhibitors and Immunomodulatory Agents: A Real-Life Multicenter Analysis
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Ataş Ü, Salim O, Iltar U, Yücel OK, Küçükdiler Eroğlu AH, Aslan V, Yıldırım M, Dedeoğlu Ö, Seçilmiş S, Ulaş T, Deveci B, Karaman Gulsaran S, Gedük A, Yaman F, Pınar İE, Maral S, Sarıcı A, Çelik S, Oğul H, Gülkan Özkan S, Gemici A, Güneş AK, Tombak A, Yavaşoğlu İ, Karakuş V, Cömert M, Toptaş T, Dal MS, Saba R, Kırkızlar HO, Mehtap Ö, Gündüz E, Özkalemkaş F, Albayrak M, Berber İ, Keklik M, Güler N, Özkan HA, Sevindik ÖG, Bolaman Z, Kurtoğlu E, Aylı M, Fıratlı Tuğlular T, Altuntaş F, and Ündar L
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- Humans, Middle Aged, Male, Female, Aged, Retrospective Studies, Adult, Immunomodulating Agents therapeutic use, Prognosis, Aged, 80 and over, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Treatment Outcome, Proteasome Inhibitors therapeutic use, Leukemia, Plasma Cell drug therapy, Leukemia, Plasma Cell mortality, Leukemia, Plasma Cell diagnosis, Leukemia, Plasma Cell therapy
- Abstract
Objective: In this study, we aimed to obtain real-life data on the use of antimyeloma agents, which significantly increase overall survival (OS) in multiple myeloma (MM) patients, in primary plasma cell leukemia (pPCL) patients with poor prognosis., Materials and Methods: Data from 53 patients who were diagnosed with pPCL between 2011 and 2020 and who used at least one proteasome inhibitor (PI) and/or immunomodulatory (IMID) agent were analyzed retrospectively. Depending on the year of the pPCL diagnosis, 20% leukocytes or ≥2x10
9 /L plasma cells in the peripheral blood was used as a diagnostic criterion., Results: The median age of the patients was 58 years and 23 (43.4%) patients were over 65 years of age. For first-line treatment, PI or IMID alone was used by 31 (58.5%) patients, and PI and IMID were used simultaneously by 15 (28.3%) patients. Additionally, 21 (39.6%) patients received transplantation and 13 (24.5%) patients received maintenance treatment. The median progression-free survival was 4 (range: 1-42) months. When patients whose primary disease was refractory to first-line therapy were excluded, the duration of treatment was 6.5 months. The median OS was 15 months with a median follow-up duration of 15 months. Only 7 (13.2%) of the patients were alive at the last follow-up visit. Those with higher β2-microglobulin levels and International Staging System stage 3 and non-transplant patients receiving first-line treatment had shorter OS (p=0.005, p=0.02, and p=0.008, respectively). The concomitant use of PIs and IMIDs, the addition of chemotherapy to induction therapy, and the response to induction therapy or maintenance therapy did not affect OS., Conclusion: In this study, as in previous similar studies, we could not see an increased survival trend in pPCL, which is observed in MM. New studies are needed for pPCL, which is likely to increase with new diagnostic criteria, based on current agents and information from MM., Competing Interests: Conflict of Interest: No conflict of interest was declared by the authors., (©Copyright 2024 by Turkish Society of Hematology Turkish Journal of Hematology, Published by Galenos Publishing House.)- Published
- 2024
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42. The effects of erector spinae plane block (ESPB) on surgery-related stress response in thoracic surgery.
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Albayrak E, Gündüz E, Titiz T, and Özen Küçükçetin I
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- Humans, Middle Aged, Male, Adult, Female, Aged, Adolescent, Stress, Physiological, Pain, Postoperative prevention & control, Young Adult, Paraspinal Muscles innervation, Tumor Necrosis Factor-alpha blood, Hydrocortisone blood, Interleukin-6 blood, Nerve Block methods, Thoracotomy
- Abstract
Background: Surgical injury induces a stress response to surgery that induces tissue repair with the activation of endocrine, metabolic, and immunological mediators aimed at restoring hemostasis., Objective: In our study to determine the effect of analgesic method on postoperative respiratory function tests, stress hormone and proinflammatory response in patients undergoing elective thoracotomy surgery., Methods: Seventy-two patients aged between 18 and 75 years with scheduled for elective thoracotomy surgery were included in the study. Thirty-six patients who underwent Erector Spinae Plane block were included in the block group, and 36 patients were included in the control group. IL 6, TNF alpha, cortisol, CRP, insulin and blood glucose levels were measured preoperatively, at the 3rd hour after postoperative extubation and at the 24th postoperative hour., Results: We observed that while IL6 and TNF alpha levels decreased in the ESPB group compared to the preoperative period, they increased insignificantly in the control group., Conclusion: ESPB has a positive effect on stress hormones and proinflammatory cytokines, reduces the use of opioids and analgesics in the intraoperative and postoperative period compared to patients without block, and lower VAS scores are obtained in patients with block.
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- 2024
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43. Comparison of ultrafast and fast track extubation after secundum atrial septal defect surgery in pediatric age group.
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Özçobanoğlu S, Gündüz E, and Tekerek NÜ
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- Humans, Female, Male, Child, Retrospective Studies, Child, Preschool, Time Factors, Cardiac Surgical Procedures methods, Adolescent, Treatment Outcome, Cardiopulmonary Bypass, Operative Time, Heart Septal Defects, Atrial surgery, Airway Extubation, Intensive Care Units, Pediatric, Length of Stay statistics & numerical data
- Abstract
Bacground: Patients who underwent ultrafast track on the operating table and fast track extubation in the pediatric intensive care unit for 2 to 6 h after secundum atrial septal defect surgery in the pediatric age group were compared., Methods: Between January 2013 and February 2017, 60 pediatric patients (24 boys, 36 girls; Mean age 7.5 ± 4.6 years) whose secundum atrial defect was closed were retrospectively analyzed. The patients were separated as those who were extubated on the operating table (Group1, n = 28) and those extubated in the pediatric intensive care unit within 2-6 h postoperatively (Group2, n = 32)., Results: No difference was found in demographic data and preoperative catheter information between the groups. Cardiopulmonary bypass time was 20(18-25)/27.5(20-30)minutes (p:0.001), the cross-clamp time was 10(10-15)/15(11-20)minutes(p:0.004), the postoperative drainage amount was 50(25-50)/60(32.5-100)ml(p:0.013), the length of stay in the intensive care unit was 1(1--1)/1(1-2)day(p:0.025), the length of stay after intensive care was 3(2-3)/3(3-4)days(p:0.001) and the total hospital stay was 4(3-4)/5(4-5.5) days ( p < 0.001), which were respectively shorter for the group 1 compared to 2. Postoperative blood product replacement, positive inotrope support, pericardial effusion, mortality, and morbidity were not detected in either groups., Conclusion: In this study, it was observed that the UFT extubation was safe for the patients who were operated for secundum ASD, in the pediatric age group, and had a cross-clamp time not exceeding 15 min. It was found that the amount of drainage, length of stay in the intensive care unit, post-intensive care unit, and the total hospital stay of patients extubated on the operating table were shorter.
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- 2024
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44. Comparison of Six Aptamer-Aptamer Pairs on Rapid Detection of SARS-CoV-2 by Lateral Flow Assay.
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Çam Derin D, Gültekin E, Gündüz E, and Otlu B
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- Humans, Spike Glycoprotein, Coronavirus, Sensitivity and Specificity, SARS-CoV-2, Aptamers, Nucleotide chemistry, Gold chemistry, Metal Nanoparticles chemistry, COVID-19 diagnosis, COVID-19 virology
- Abstract
Background: SARS-CoV-2 is a threat to humanity. Both the spike (S) protein and its receptor binding domain (sRBD) are extensively used for rapid detection. Although real-time reverse transcription polymerase chain reaction (rRT-PCR) is mostly used method for the molecular detection of SARS-CoV-2, rapid assays for antigenic detection are always needed. Lateral flow assays (LFAs) are the most commonly used tests for this purpose, and aptamers having stability and long shelf life are used as capture reagents., Objective: This study aimed to develop the LFAs based on the aptamer pairs for the antigenic detection of SARS-CoV-2 with the naked eye., Method: Gold nanoparticles (AuNPs) were used as labels, and six sandwich models by three different aptamers were prepared using 4 μM and 8 μM probes and two kinds of membranes for developing the LFAs., Results: The 8 μM probe concentration and M2 membrane showed the best recognition of both the synthetic sRBD and SARS-CoV-2 coming from the naso/oropharingeal swabs by designed LFAs as 100% sensitivity and 93.3% specificity compared to the antibody-detecting LFAs., Conclusions: Our developed strip assays based on aptamer pairs recognized the target directly in 5-6 min with the naked eye. It was also concluded that aptamer pairs, membrane types, assay buffers, and probe concentrations have a significant role in the detection of SARS-CoV-2 by LFAs., Highlights: The detection of SARS-CoV-2 in clinical samples was demonstrated with the best aptamer pairs, sensitively and selectively among the designed six aptamer pairs for LFAs. Developed LFAs can be an alternative method to the conventional antibody-based LFAs for SARS-CoV-2 detection., (© The Author(s) 2024. Published by Oxford University Press on behalf of AOAC INTERNATIONAL. All rights reserved. For permissions, please email: journals.permissions@oup.com.)
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- 2024
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45. Noncardiac Surgery in Patients with Left Ventricular Assist Devices: A 11-Year Institutional Experience.
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Gündüz E
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- Humans, Retrospective Studies, Hospitals, Heart Ventricles, Heart Failure surgery, Heart-Assist Devices
- Abstract
Introduction: Limited options in the end-stage treatment of heart failure have led to increased use of left ventricular assist devices. For this reason, the rate of non-cardiac surgeries in patients with left ventricular assist devices is also increasing. Our study aims to analyze surgical rate, anesthesia management, and results by reviewing our 11-year experience with patients who underwent non-cardiac surgery receiving left ventricular assist devices support., Methods: We retrospectively evaluated 57 patients who underwent non-cardiac surgery and 67 non-cardiac surgical procedures among 274 patients who applied between January 2011 and December 2022 and underwent left ventricular assist devices implantation with end-stage heart failure., Results: Fifty (74.6%) patients with left ventricular assist devices admitted to the hospital for non-cardiac surgery were emergency interventions. The most common reasons for admission were general surgery (52.2%), driveline wound revision (22.3%), and neurological surgery (14.9%). This patient group has the highest in-hospital mortality rate (12.8%) and the highest rate of neurological surgery (8.7%). While 70% of the patients who underwent neurosurgery were taken to surgery urgently, the International Normalized Ratio values of these patients were between 3.5 and 4.5 at the time of admission to the emergency department., Conclusion: With a perioperative multidisciplinary approach, higher morbidity and mortality risks can be reduced during emergencies and major surgical procedures.
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- 2024
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46. Cerebrotendinous Xanthomatosis patients with late diagnosed in single orthopedic clinic: two novel variants in the CYP27A1 gene.
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Köroğlu M, Karakaplan M, Gündüz E, Kesriklioğlu B, Ergen E, Aslantürk O, and Özdemir ZM
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- Adult, Child, Female, Humans, Male, Cholestanol therapeutic use, Retrospective Studies, Xanthomatosis genetics, Cholestanetriol 26-Monooxygenase genetics, Xanthomatosis, Cerebrotendinous diagnosis, Xanthomatosis, Cerebrotendinous genetics
- Abstract
Background: Cerebrotendinous Xanthomatosis (CTX) is a rare autosomal recessive lipid storage disorder caused by loss of function variants in the CYP27A1 gene which encodes sterol 27-hydroxylase, on chromosome 2q35. Although the symptoms begin commonly in infancy, CTX diagnosis is often delayed. The aim of this study is to review the orthopedic findings of the disease by providing an overview of the clinical features of the disease. It is to raise awareness of this condition for which early diagnosis and treatment are important., Methods: We retrospectively evaluated the clinical, laboratory, radiological, and genetic findings of eight patients from four families who were admitted to our Orthopedics and Traumatology Department between 2017 and 2022 due to bilateral Achilles tendon xanthomas, were found to have high cholestanol and CYP27A1 gene mutations., Results: The mean age of patients was 37, and five of them were male. The mean age at the onset of symptoms was 9.25 years. The mean age of initial diagnosis was 33.75 years. Between symptom onset and clinical diagnosis, an average delay of 24.5 years was observed. All patients had bilateral Achilles tendon xanthoma. Notably, a novel variant (c.670_671delAA) in CYP27A1 gene was identified in three patients who also presented with peripheral neuropathy and bilateral pes cavus. One patient had osteoporosis and four patients had osteopenia. Five patients had a history of bilateral cataracts. Furthermore, three of the patients had early-onset chronic diarrhea and three of the patients had ataxia. Two of the patients had epilepsy and seven of the patients had behavior-personality disorder. All patients had low intelligence, but none of them had cardiac disease., Conclusion: We present the diagnostic process and clinical features which the largest CTX case series ever reported from single orthopedic clinic. We suggest that patients with normal cholesterol levels presenting with xanthoma being genetically analyzed by testing at their serum cholestanol level, and that all siblings of patients diagnosed with CTX be examined., (© 2024. The Author(s).)
- Published
- 2024
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47. Vital indicators in predicting burn mortality: A comparison of shock indices and burn shock indices.
- Author
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Içer M, Gündüz E, Güloğlu C, Erbatur S, Polat D, Özkan H, Bayrak T, and Göger Ülgüt Ş
- Subjects
- Humans, Male, Female, Adult, Retrospective Studies, Child, Child, Preschool, Middle Aged, Adolescent, Young Adult, Predictive Value of Tests, Infant, Aged, Glasgow Coma Scale, Burns mortality, Shock mortality
- Abstract
Background/aim: In many studies, shock indices have proven to be good tools for predicting mortality. In the present study, burn shock index (BSI), percentage of total body surface area burned (TBSA%) multiplied by shock index; burn modified shock index (BMSI), TBSA% multiplied by modified shock index; burn age shock index (BASI), TBSA% multiplied by age shock index; burn rivers shock index (BrSI), TBSA% multiplied by rivers shock index; burn rivers shock index multiplied by Glasgow Coma Scale score (BrSIG) were examined in burn patients. We defined these burn shock indices for the first time. This study aimed to evaluate the effectiveness of shock indices and burn shock indices in predicting mortality in burn patients., Materials and Methods: This study examines retrospectively of burn patients admitted to the emergency department of Dicle University Hospital between January 2010 and December 2022. The patients' vital signs were obtained at the time of presentation to the emergency department, and shock indices were calculated. The effectiveness of shock indices in predicting mortality was compared., Results: A total of 2445 patients were included in the study. Of the patients, 1793 were pediatric, and 652 were adults. BSI (AUC: 0.872, 95% confidence interval (CI): 0.812-0.931, p < 0.001) had the highest area under the curve (AUC) value in predicting mortality in children. The optimal cut-off value for BSI in children was 21.79 and its was sensitivity 83.05%, specificity 79.64%, positive predictive value (PPV) 12.19%, negative predictive value (NPV) 99.28%. In adults, BASI had the highest value of AUC (AUC: 0.936, 95% CI: 0.887-0.984, p < 0.001). The optimal cut-off value for BASI in adults was 62.5 and its sensitivity was 86.49%, specificity was 91.71%, PPV was 38.55%, and NPV was 99.12%., Conclusion: Shock indices are easy to calculate and effective in predicting mortality in burn patients admitted to the emergency department. Among the shock indices in the study, BSI was the best in predicting mortality in children, and BASI was the best in adults., Competing Interests: Conflict of interest: There is no conflict of interest between the authors., (© TÜBİTAK.)
- Published
- 2023
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48. Preparation of NDI-BODIPY Based Photo Catalyzers for Green LED Irradiated Synthesis of Juglone.
- Author
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Büyükpolat Ü, Öztürk Gündüz E, Eserci Gürbüz H, and Okutan E
- Abstract
Photochemistry related studies have been driven by with the application of new types of photocatalysis. Lately boron-dipyrromethene (BODIPY) as distinguished chromophore with exceptional photophysical and chemical features has emerged as a viable photosensitizer. Within this context, three new NDI-BODIPY triads (8-10) were synthesized/ characterized and used to investigate the efficiencies of singlet oxygen generation and oxidation of 1,5-dihydroxynapthalene to juglone under visible light. Singlet oxygen generation was determined both via indirect method by using 1,3-diphenylisobenzofuran as trap molecule and from the characteristic
1 O2 phosphorescence at 1270 nm. Also, NDI with BODIPY dyes bearing bromine and iodine atoms were shown to be highly active photocatalysts in which the activities are comparable or higher to the readily available commercial systems where 36% (9) and 66% (10) juglone production was achieved under 15 min. This work may emphasize good example of applying NDI-BODIPY based triads as photocatalysts for a series of important organic transformations., (© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)- Published
- 2023
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49. Plasma exchange in acute hemolytic reaction due to ABO-incompatible erythrocyte concentrate transfusions: Single center experience.
- Author
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Andıç N, Teke HÜ, and Gündüz E
- Subjects
- Humans, Aged, Plasma Exchange, Hemoglobinuria, Platelet Transfusion, Blood Group Incompatibility, Erythrocytes, ABO Blood-Group System, Hemolysis, Transfusion Reaction
- Abstract
Objectives: Acute hemolytic transfusion reaction (AHTR) due to ABO-incompatible erythrocyte concentrate (EC) is one of the most catastrophic complications of transfusion. Since the hemolysis is intravascular; hemoglobinemia and hemoglobinuria result in disseminated intravascular coagulation (DIC), acute renal failure, shock, and sometimes death., Background: Treatment of AHTR is mostly supportive measures. Today there are no clear suggestions about plasma exchange (PE) in these patients., Methods/materials: Here we report our experience with six patients diagnosed with AHTR due to ABO-incompatible EC transfusion., Results: We performed PE in 5 of these patients. Although all of our patients were geriatric and most of them had significant comorbidities four out of five patients recovered without an incident., Conclusion: Although PE is considered a last-chance treatment when other measures fail in the literature, our experience above indicates that it must be evaluated in every patient with AHTR early in the course. If the patient has cardiac and renal comorbidities, large volume EC is transfused, DAT is negative, plasma color is red and there is macroscopic hemoglobinuria, we suggest performing PE., (© 2023 British Blood Transfusion Society.)
- Published
- 2023
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50. HLA Alleles, Genotype and Haplotype Analyzes from Central Anatolia Region of Turkey
- Author
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Yantır E, Gündüz E, and Çolak E
- Subjects
- Humans, Haplotypes, Turkey, Alleles, Gene Frequency genetics, Retrospective Studies, Cross-Sectional Studies, Genotype, HLA-DRB1 Chains genetics, DNA, Histocompatibility Antigens Class I genetics, HLA-A Antigens genetics
- Abstract
Background: Although human leukocyte antigen (HLA) data for the Turkish population has been reported, there are no statistics on the HLA-DPB1 locus, which has recently received significant attention, particularly in hematopoietic stem cell transplantation. In addition, there is no study that has reported the 2-6 loci HLA haplotype distribution, 8-digit HLA allele frequency, and genotype frequency in the Turkish population., Aims: To evaluate the low and high resolution (2-4-8 digits) HLA-A, -B, -C, -DRB1, -DQB1, -DPB1 allele data using the data of 6100 healthy individuals from the Central Anatolian region of Turkey., Study Design: Retrospective cross-sectional study., Methods: All tests were performed using molecular HLA techniques: low-resolution DNA-based sequence-specific oligonucleotides, low/high-resolution DNA-based sequence-specific primer, and high-resolution next generation sequencing. A total of 6100 healthy donors with a minimum of 3 loci (HLA-A, -B, -DRB1) were analyzed for their HLA-A, -B, -C, -DRB1, -DQB1, and -DPB1 data. Pypop and HLA-net GENE[RATE] were used to analyze the data., Results: Among the HLA class I alleles, the following were the most frequently observed alleles: for HLA-A, A*02, A*24, A*03 , and A*01 ; for HLA-B, B*35, B*51 , and B*44 ; and for HLA-C, C*07, C*04 , and C*12 . Among the HLA class II alleles, the following alelles were the most frequently observed: for HLA-DRB1, DRB1*11, DRB1*04 , and DRB1*13 ; for HLA-DQB1, DQB1*03, DQB1*05 , and DQB1*06 ; and for HLA- DPB1, DPB1*04, DPB1*02 , and DPB1*03 . The most common alleles among HLA-DPB1 in the 4-digit evaluation were DPB1*04:01, DPB1*02:01, and DPB1*04:02. Among the HLA classes I and II, the following were the most frequently observed 8-digit alleles in HLA-A, -B, -C, -DRB1, -DQB1 and -DPB1 were A*02:01:01:01, B*49:01:01:01, C*04:01:01:06, DRB1*07:01:01:01, DQB1*03:01:01:02 , and DPB1*02:01:02:05 , respectively. The most common 6 loci haplotype was A*02~B*35~C*04~DRB1*11~DQB1*03~DPB1*04 (2.71%)., Conclusion: In this study, low and high resolution HLA-DPB1 allele frequency, 6 locus haplotype frequency and genotype frequency were reported for the first time in Turkish population. These new data can be used to map HLA in our country and may provide ideas for potential future studies.
- Published
- 2023
- Full Text
- View/download PDF
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