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Jafarzade A, Bulut B, Bulut H, Mihmanli V. Can M-30, M-65, and IL-6 serum levels be useful markers in the diagnosis of preeclampsia and gestational diabetes? Eur Rev Med Pharmacol Sci 2023; 27:5795-5802. [PMID: 37401316 DOI: 10.26355/eurrev_202306_32818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
OBJECTIVE We aimed to evaluate the maternal and fetal serum M-30, M-65 and IL-6 levels in preeclampsia and gestational diabetes mellitus (GDM) in both maternal and cord blood. PATIENTS AND METHODS Women with preeclampsia (n=30), GDM (n=30), and uncomplicated pregnancy (n=28) were evaluated in a cross-sectional study. After clamping during delivery, the serum M-30, M-65, and IL-6 levels were measured in both maternal venous blood and cord blood. RESULTS The serum M-30, M-65, and IL-6 levels were significantly higher in preeclampsia and GDM patients' maternal blood and cord blood samples compared to the control group. In the preeclampsia group, M-65 was significantly higher in cord blood compared with the level in maternal serum, but there was no significant difference between the GDM and control groups. The control group's IL-6 level in cord blood was statistically significantly lower than the other groups. Although the M-30 value in both maternal and cord blood was statistically lower in the control group than in the GDM group, there was no significant difference between the two groups when compared to the preeclampsia group. CONCLUSIONS M-30 and M-65 molecules appear to have the potential to serve as biochemical markers in placental diseases, particularly preeclampsia and gestational diabetes. Due to the insufficient sample sizes, more research is needed.
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Affiliation(s)
- A Jafarzade
- Department of Obstetrics and Gynecology, Koru Ankara Hospital, Ankara, Turkey.
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Dayi O, Bulut E, Karadag M, Bulut H. Ocular biometry characteristics and its relationship with age, gender, spherical equivalent in Turkish children. Niger J Clin Pract 2022; 25:569-575. [PMID: 35593597 DOI: 10.4103/njcp.njcp_1277_21] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background Studying ocular biometric parameters in different populations and determining the relationship with personal characteristics can provide valuable information about ocular growth and help provide a better understanding of refractive errors. Aims To describe distributions of ocular biometry and to evaluate its associations with age, gender, spheric equivalent in Turkish children. Patients and Methods In this prospective study 344 children aged 3-14 years were evaluated. Parameters studied included axial length (AL), anterior chamber depth (ACD), and mean corneal radius (CR) measured with optical biometry. Cycloplegic refraction values were obtained using autorefractometer. The change of biometric parameters according to age and gender were evaluated. The relationship between ocular biometry parameters with refraction and age was analyzed by linear regression. Results Mean spherical equivalent (SE), AL, ACD and AL/CR observed to be lowest in the preschooler group (P < 0.001). SE reduced with age, and a weak correlation observed between SE and age (r = -0.333). AL and ACD had moderate and weak positive correlations with age respectively (r = 0.511; r = 0.304). There were negative correlations between SE with AL, ACD and AL/CR (r = -0.826; r = -0.540; r = -0.886). The strongest correlation with SE among these parameters was identified for AL/CR. AL and ACD were higher in boys, while the CR was lower in girls (p < 0.001). Conclusion While AL in children in late schooler group is higher than European countries, it shows similar characteristics in early schooler group. In addition AL is lower in all age groups than Asian population sexcept preschooler group. With age AL increases, SE decreases and AL plays a key role in refractive development.
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Affiliation(s)
- O Dayi
- Department of Ophthalmology, Beylikduzu State Hospital, Istanbul, Turkey
| | - E Bulut
- Department of Opticianry, Vocational School of Health Services, Gelisim University, Istanbul, Turkey
| | - M Karadag
- Department of Biostatistics and Medical information, Hatay Mustafa Kemal University Faculty of Medicine Hatay, Turkey
| | - H Bulut
- Department of Child Development, Vocational School of Health Services, Gelisim University, Istanbul, Turkey
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Bildaci YD, Bulut H, Elcioglu OC, Gursu M, Kazancioglu R. Alteration of inflammation marker levels with alfa keto analogs in diabetic rats. Niger J Clin Pract 2022; 25:1452-1456. [DOI: 10.4103/njcp.njcp_1868_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Taslidere E, Esrefoglu M, Tok OE, Taslidere B, Bulut H. Effects of melatonin on both testicular regeneration and recovery of spermatogenesis in busulfan-treated rats. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e20945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Affiliation(s)
| | | | - OE Tok
- Medipol University, Turkey
| | | | - H Bulut
- Bezmialem Vakif University, Turkey
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Abstract
AIM The aim of this study is to determine the age and most common reasons of the first dental visit among preschool children, taking into account family income and parental education in Turkey. METHODS This cross-sectional study was conducted in a state dental hospital on 519 children aged 0-5 years who had their first dental visit with no previous dental experience. Data on age and reasons for the first dental visit of the children and parent relevant data on family income, educational level, dental visit frequency, and satisfaction about the oral health care information was collected by means of a questionnaire. RESULTS Of the 519 children of the study, 47.4% were males and 52.6% were females. The mean age of first dental visit was 3.62±1.32 and 2.9% of the children had been visited under the age of 1 year. Pain (36.4%) was the main reason for the visit followed mostly by check-up (23.1%), other reasons (21.4%), and decay noted by parents (15.6%). There was no referral from paediatricians. Parental educational level was not found as an impact factor for the reasons and the age of the visit (p=0.394; p=0.245). Children of low-income-family were more likely to have dental visit due to pain (p=0.002). The frequency of parents' dental visits was not a determinant factor for the reason and the age of the child's visit (p>0.05; p>0.05). All the parents were satisfied with the oral health information. CONCLUSION It is necessary to raise awareness about early dental visits and oral health care among parents and paediatricians.
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Affiliation(s)
- G Bulut
- Clinic of Pediatric Dentistry, Izmir Training Dental Hospital, IZMIR, Turkey
| | - H Bulut
- Associate Professor, Department of Orthodontics, Faculty of Dentistry, Ege University, Izmir, Turkey
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Bulut H, Bulut G. A step to infant oral health promotion intervention among parents. Eur J Paediatr Dent 2020; 21:61-65. [PMID: 32183531 DOI: 10.23804/ejpd.2020.21.01.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AIM Providing oral health care to children from infant to toddler age can be achieved by educating and informing parents about their children’s oral health. The aims of this study were to determine the basic knowledge of oral health and to evaluate the efficacy of an infant oral health education programme among parents in Turkey. METHODS Study Design: One hundred and fifty parents of infants between 3 and 12 months of age attending the well-baby clinic, Dr. Behcet Uz Children’s Hospital (Izmir, Turkey), participated in the study. A pre-test questionnaire was administered to each parent to assess their infant oral health knowledge. The educational intervention was in the form of a 30-minute interactive explanation of a PowerPoint presentation. The parents completed a post-test after the education in the same session (a questionnaire was administered). RESULTS The range of correct answers on the pre-test was 7–20 of 26 with a mean of 13.7 (SD=2.76). The range of correct answers on the post-test was 12–26 of 26 with a mean of 21.2 (SD=3.34). The difference of correct responses between before and after education was found to be statistically significant (p<0.01). CONCLUSION Under the conditions of this study, educational presentation improved parents’ knowledge on infant oral health care and provided anticipatory guidance.
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Affiliation(s)
- H Bulut
- Department of Orthodontics, Faculty of Dentistry, Ege University,Bornova, Izmir, Turkey
| | - G Bulut
- Clinic of Pediatric Dentistry, Izmir Training Dental Hospital, Konak, Izmir, Turkey
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Abstract
Objective To evaluate clinical and histological characteristics and determine the incidence of natal/neonatal teeth in a large Turkish population. Subjects and Methods Among 17,829 newborns, who were hospitalized at the Neonatal Clinic of a governmental Children's Hospital between 2005 and 2011, 27 neonates were diagnosed with erupted teeth, which were examined in terms of location, clinical appearance and mobility. Besides histological evaluation, a positive family history was also recorded. The variables were analyzed using Chi-square test. Results Thirty-two natal/neonatal teeth were observed in 27 infants. The incidence of both natal and neonatal teeth was found to be 1:660, while the incidences were separately recorded as 1:1,048 and 1:1,782, respectively. The histological examination revealed a thin hypoplastic enamel layer and a normal dentin layer. There was no difference between the two genders in terms of natal/neonatal tooth type, positive family history and tooth morphology (p > 0.05); or between normal and conical shapes with regard to natal/neonatal tooth type, positive family history and tooth color (p > 0.05). Conclusions This study exhibited a higher incidence in natal teeth than neonatal teeth. Macroscopic features were not found to be positively related to gender and tooth type.
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Affiliation(s)
- G Bulut
- Department of Paediatric Dentistry, Izmir Training Dental Hospital, Konak-Izmir, Turkey
| | - H Bulut
- Department of Orthodontics, Faculty of Dentistry, Ege University, Bornova-Izmir, Turkey
| | - R Ortac
- Department of Pathology, Dr. Behcet Uz Child Disease and Pediatric Surgery Training and Research Hospital, University of Health Sciences, Konak-Izmir, Turkey
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Selek S, Esrefoglu M, Meral I, Bulut H, Caglar HG, Sonuc G, Yildiz C, Teloglu ES, Dogan N, Yuce B, Tiftik E, Bayindir N. Effects of Oenothera biennis L. and Hypericum perforatum L. extracts on some central nervous system myelin proteins, brain histopathology and oxidative stress in mice with experimental autoimmune encephalomyelitis. Biotech Histochem 2019; 94:75-83. [PMID: 30957550 DOI: 10.1080/10520295.2018.1482001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
We investigated the effects of Oenothera biennis L. and Hypericum perforatum L. extracts on brain tissue histopathology, myelin oligodendrocyte glycoprotein (MOG), myelin basic protein (MBP), total antioxidant status (TAS), total oxidant status (TOS) and oxidative stress index (OSI) in mice with experimental autoimmune encephalomyelitis (EAE). Forty-seven C57BL/6J mice were divided into the following groups: multiple sclerosis (MS), control (healthy mice), MS + H. perforatum treated (MS + HP), MS + O. biennis treated (MS + OB). All groups except the control group were immunized by EAE methods. Two weeks after the immunization, the mice in the MS + HP group were fed normal food containing 18 - 21 g/kg H. perforatum extract, the mice in MS + OB group were fed normal food containing 18 - 21 g/kg O. biennis extract, and the mice in control and MS groups were fed normal food for six weeks. Brain tissue samples were collected from all mice for histopathological and biochemical analysis. Clinical signs of the disease were scored using functional systems scores (FSS) daily. The H. perforatum and O. biennis extracts ameliorated the increased brain tissue MOG and MBP values for animals with MS. H. perforatum and O. biennis extract decreased the TOS and OSI values for brain tissue and increased TAS levels in brain tissue of animals with MS. In addition, H. perforatum and O. biennis extracts decreased the clinical signs at the end of the experiment compared to the beginning of extract administration. We found that myelin was lost in MS group vs. control group. H. perforatum and O. biennis extract treatments decreased the amount of myelin loss in the MS + HP and MS + OB groups. We also observed amyloid deposition on vascular walls, in the cytoplasm of the neurons and in the intercellular space in the MS group. O. biennis and H. perforatum treated groups exhibited neither abnormal amyloid deposition nor obvious cell infiltration. The beneficial effects of O. biennis and H. perforatum for attenuating myelin loss and amyloid deposition suggest their therapeutic utility for treatment of MS.
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Affiliation(s)
- S Selek
- a Departments of Medical Biochemistry , Bezmialem Vakif University , Istanbul , Turkey
| | - M Esrefoglu
- b Histology and Embryology , Bezmialem Vakif University , Istanbul , Turkey
| | - I Meral
- c Physiology Faculty of Medicine , Bezmialem Vakif University , Istanbul , Turkey
| | - H Bulut
- a Departments of Medical Biochemistry , Bezmialem Vakif University , Istanbul , Turkey
| | - H G Caglar
- a Departments of Medical Biochemistry , Bezmialem Vakif University , Istanbul , Turkey
| | - G Sonuc
- d School of Medicine , Bezmialem Vakif University , Istanbul , Turkey
| | - C Yildiz
- d School of Medicine , Bezmialem Vakif University , Istanbul , Turkey
| | - E S Teloglu
- d School of Medicine , Bezmialem Vakif University , Istanbul , Turkey
| | - N Dogan
- d School of Medicine , Bezmialem Vakif University , Istanbul , Turkey
| | - B Yuce
- d School of Medicine , Bezmialem Vakif University , Istanbul , Turkey
| | - E Tiftik
- d School of Medicine , Bezmialem Vakif University , Istanbul , Turkey
| | - N Bayindir
- b Histology and Embryology , Bezmialem Vakif University , Istanbul , Turkey
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Meydan S, Esrefoglu M, Selek S, Akbas Tosunoglu E, Ozturk O, Kurbetli N, Bayındır N, Bulut H, Meral I. Protective effects of caffeic acid phenethyl ester and thymoquinone on toluene induced liver toxicity. Biotech Histochem 2019; 94:277-282. [PMID: 30821514 DOI: 10.1080/10520295.2018.1554825] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Toluene is an organic solvent that is toxic to humans. Caffeic acid phenethyl ester (CAPE) and thymoquinone (TQ) exhibit antioxidant and antitoxic effects. We investigated the protective effects of CAPE and TQ on toluene induced hepatotoxicity. Wistar albino rats were divided into seven groups of eight. The animals were injected intraperitoneally (i.p.) with 0.1 ml/10 g/day corn oil (control I), 0.1 ml/10 g/day corn oil + 2 ml/kg/day 10% ethanol (control II), 20 mg/kg/day TQ dissolved in 0.1 ml/10 g corn oil (TQ), 10 µmol/kg/day CAPE dissolved in 10% ethanol (CAPE), 500 mg/kg/day toluene (T), toluene and TQ together (T + TQ), or toluene and CAPE together (T + CAPE). All rats were sacrificed on day 15. Liver samples were obtained for histological analysis. Serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels were measured to evaluate liver function. Liver sections from the control I and TQ groups exhibited normal histology. Sections from the T group exhibited sinusoid dilation, hemorrhage, vacuolization and necrosis. TQ and CAPE protected against toluene induced histopathological changes. AST and ALT levels were increased significantly in T group compared to both control groups. CAPE decreased significantly the toluene induced increase in AST and ALT levels, while TQ did not. CAPE and TQ exhibited some antitoxic and hepato-protective effects on toluene induced liver damage.
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Affiliation(s)
- S Meydan
- a School of Medicine, Department of Anatomy , Bezmialem Vakif University , Istanbul , Turkey
| | - M Esrefoglu
- b School of Medicine, Department of Histology and Embryology , Bezmialem Vakif University , Istanbul , Turkey
| | - S Selek
- c School of Medicine, Department of Biochemistry , Bezmialem Vakif University , Istanbul , Turkey
| | - E Akbas Tosunoglu
- d School of Medicine, Department of Anatomy , Biruni University , Istanbul , Turkey
| | - O Ozturk
- e Faculty of Health Sciences, Department of Midwifery , Biruni University , Istanbul , Turkey
| | - N Kurbetli
- f School of Medicine, Department of Anatomy , Pamukkale University , Istanbul , Turkey
| | - N Bayındır
- b School of Medicine, Department of Histology and Embryology , Bezmialem Vakif University , Istanbul , Turkey
| | - H Bulut
- c School of Medicine, Department of Biochemistry , Bezmialem Vakif University , Istanbul , Turkey
| | - I Meral
- g School of Medicine, Department of Physiology , Bezmialem Vakif University , Istanbul , Turkey
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Bulut H, Merdan H, Swigon D. Asset price dynamics for a two-asset market system. Chaos 2019; 29:023114. [PMID: 30823724 DOI: 10.1063/1.5046925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 01/14/2019] [Indexed: 06/09/2023]
Abstract
We present a mathematical model for a market involving two stocks which are traded within a single homogeneous group of investors who have similar motivations and strategies for trading. It is assumed that the market consists of a fixed amount of cash and stocks (additions in time are not allowed, so the system is closed) and that the trading group is affected by trend and valuation motivations while selling or buying each asset, but follows a strategy in which the buying of an asset depends on the other asset's price while the selling does not. By utilizing these assumptions and basic microeconomics principles, the mathematical model is obtained through a dynamical system approach. We analyze the stability of equilibrium points of the model and determine the conditions on parameters for stability. First, we prove that all equilibria are stable in the absence of a clear emphasis on a trend-based value for each stock. Second, for systems in which the group of traders attaches importance to the valuation of one stock and the trend of the other stock for trading, we establish conditions for stability and show with numerical examples that when instability occurs, it is exhibited by oscillations in the price of both stocks. Moreover, we argue the existence of periodic solutions through a Hopf bifurcation by choosing the momentum coefficient as a bifurcation parameter within this setting. Finally, we give examples and numerical simulations to support and extend the analytical results. One of the key conclusions for economics and finance is the existence of a cyclic behavior in the absence of exogenous factors according to the momentum coefficient. In particular, an equilibrium price that is stable becomes unstable as the trend based trading increases.
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Affiliation(s)
- H Bulut
- Department of Mathematics, TOBB University of Economics and Technology, 06560 Ankara, Turkey
| | - H Merdan
- Department of Mathematics, TOBB University of Economics and Technology, 06560 Ankara, Turkey
| | - D Swigon
- Department of Mathematics, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
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Saygin B, Esrefoglu M, Bayindir N, Tok OE, Selek S, Bulut H, Ozer OF, Ozturk A, Yilmaz O, Meydan S. Protection with thymoquinone against formaldehyde-induced neurotoxicity in the rats. BRATISL MED J 2019; 119:726-730. [PMID: 30686007 DOI: 10.4149/bll_2018_129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
INTRODUCTION This study aimed to investigate the neurotoxic damage of formaldehyde (FA), which is commonly used in medicine and industrial fields, for the hippocampus of rats and the protective role of thymoquinone (TQ) against this neurotoxicity. METHODS There were five groups with eight rats in each. Two control groups were formed, in one of them physiological saline was applied and in the other one corn oil was applied. FA was injected in Group 3. Group 4 was exposed to FA and TQ simultaneously. Group 5 received TQ only. At the end of the experiment animals were sacrificed and brain tissues were removed for biochemical and histopathological investigation. RESULTS catalase (CAT), glutathione peroxidase (GSH-px) and superoxide dismutase (SOD), all known as enzymes with antioxidant activities, were increased in FA and TQ simultaneously administered group. FA caused prominent subarachnoidal hemorrhage and vacuolization. Vacuolization was not observed but occasional subarachnoidal hemorrhage was detected in the FA+TQ group. CONCLUSION Neurotoxic damage in hippocampus induced by FA was reverted by administration of TQ (Tab. 1, Fig. 1, Ref. 26).
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Dundar R, Bulut H, Yükkaldiran A, Güler O, Demirtaş Y, Iynen İ, Bozkuş F, Soy F. Temperature rises in the round window caused by various light sources during insertion of rigid endoscopes: an experimental animal study. Clin Otolaryngol 2016; 41:44-50. [DOI: 10.1111/coa.12468] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/24/2015] [Indexed: 11/29/2022]
Affiliation(s)
- R. Dundar
- Department of Otorhinolaryngology; Harran University; Şanliurfa Turkey
| | - H. Bulut
- Department of Mechanical Engineering; Harran University Engineering Faculty; Şanliurfa Turkey
| | - A. Yükkaldiran
- Department of Otorhinolaryngology; Harran University; Şanliurfa Turkey
| | - O.K. Güler
- Department of Otorhinolaryngology; Harran University; Şanliurfa Turkey
| | - Y. Demirtaş
- Department of Mechanical Engineering; Harran University Engineering Faculty; Şanliurfa Turkey
| | - İ. Iynen
- Department of Otorhinolaryngology; Harran University; Şanliurfa Turkey
| | - F. Bozkuş
- Department of Otorhinolaryngology; Harran University; Şanliurfa Turkey
| | - F.K. Soy
- Department of Otorhinolaryngology; Harran University; Şanliurfa Turkey
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Berkkanoglu M, Coetzee K, Bulut H, Ozgur K. Hysteroscopic Proximal Occlusion of Hydrosalpinges by Essure® in 32 Laparoscopic Contraindicated Patients Before Assisted Reproductive Technology (ART). J Minim Invasive Gynecol 2015; 22:S181-S182. [DOI: 10.1016/j.jmig.2015.08.669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Berkkanoglu M, Coetzee K, Bulut H, Ozgur K. Is a freeze-all cycle justified in poor response? Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ozgur K, Berkkanoglu M, Bulut H, Coetzee K. Better oocyte maturity and blastulation with agonist trigger. Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.1030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Coetzee K, Ozgur K, Berkkanoglu M, Bulut H, Isikli A. Reliable single sperm cryopreservation in Cell Sleepers for azoospermia management. Andrologia 2015; 48:203-10. [PMID: 25988980 DOI: 10.1111/and.12434] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/19/2015] [Indexed: 12/19/2022] Open
Abstract
Conventional sperm freezing methods perform best when freezing sperm samples containing at least hundreds of spermatozoa. In this severe male factor infertility case series, we examined the reproductive outcomes in 12 intracytoplasmic sperm injection cases where spermatozoa used were frozen in Cell Sleepers. Cell Sleepers are novel devices in which individual spermatozoa can be frozen in microdroplets. The case series included five men with obstructive azoospermia, six with nonobstructive azoospermia and one with cryptozoospermia, in whom microscopic sperm retrievals from testicular sperm extraction (TESE), micro-TESE extracts and a centrifugation procedure resulted in less than 50 spermatozoa. A total of 304 microscopically retrieved spermatozoa were frozen in 20 Cell Sleepers using a rapid manual cryopreservation method. A total of 179 mature oocytes were injected with recovered thawed spermatozoa, resulting in a fertilisation rate of 65.9% (118 of 179), with no total fertilisation failures. In 10 cases, an embryo transfer was performed, three on day 3 and seven on day 5, resulting in a per cycle pregnancy rate of 58.3% (seven of 12). Four of the pregnancies have progressed past 20 gestation weeks. The recovery and use of spermatozoa that were frozen in Cell Sleepers was uncomplicated and effective and eliminated the need to perform any microscopic sperm retrieval procedures on the day of oocyte collection. Modification of the routine sperm cryopreservation methodology to include the use of Cell Sleepers increases the range of sperm samples that can be effectively cryopreserved, to include men with severe male factor fertility.
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Affiliation(s)
- K Coetzee
- Vitale, Kadin Hastalıkları ve Doğum Hastanesi, Antalya, Turkey
| | - K Ozgur
- Antalya IVF, Özel Antalya Tüp Bebek Merkezi, Antalya, Turkey
| | - M Berkkanoglu
- Antalya IVF, Özel Antalya Tüp Bebek Merkezi, Antalya, Turkey
| | - H Bulut
- Antalya IVF, Özel Antalya Tüp Bebek Merkezi, Antalya, Turkey
| | - A Isikli
- Antalya IVF, Özel Antalya Tüp Bebek Merkezi, Antalya, Turkey
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Berkkanoglu M, Bulut H, Coetzee K, Kaya G, Ozgur K. Intracytoplasmic sperm injection (ICSI) in male renal transplant recipients. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.1761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ozgur K, Bulut H, Berkkanoglu M, Isikli A, Coetzee K. Identical blastocyst scores yield equivalent pregnancy outcomes in fresh versus frozen cycles. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.1407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Berkkanoglu M, Coetzee K, Bulut H, Kaya G, Ozgur K. Torsion of ovary: its incidence and obstetric outcome following controlled ovarian hyperstimulation for intracytoplasmic sperm injection (ICSI). Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.1768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Bulut H, Pehlivan M, Alper S, Tomatir A, Onay H, Yüksel S, Özkinay F, Pehlivan S. Lack of association between catalase gene polymorphism (T/C exon 9) and susceptibility to vitiligo in a Turkish population. Genet Mol Res 2011; 10:4126-32. [DOI: 10.4238/2011.october.31.12] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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22
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Affiliation(s)
| | | | | | - H. Bulut
- Department of Virology; Faculty of Veterinary Medicine; University of Firat; 23119 Elazig Turkey
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Berkkanoglu M, Bulut H, Coetzee K, Senturk Z, Aksunger O, Ozgur K. Stabilizing temperature inside the tubing set of the OPU needle improves the outcome: a prospective randomized study. Fertil Steril 2008. [DOI: 10.1016/j.fertnstert.2008.07.1534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Affiliation(s)
- I Gulacti
- Department of Virology, Faculty of Veterinary Medicine, Firat University, 23110, Elazig, Turkey
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Ongör H, Cetinkaya B, Karahan M, Bulut H. Evaluation of Immunomagnetic Separation–Polymerase Chain Reaction in Direct Detection ofBrucella abortusandBrucella melitensisfrom Cheese Samples. Foodborne Pathog Dis 2006; 3:245-50. [PMID: 16972772 DOI: 10.1089/fpd.2006.3.245] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The current study was carried out to assess the use of immunomagnetic separation-polymerase chain reaction (IMS-PCR) in direct detection of Brucella abortus and B. melitensis from soft cheese and to examine a relatively small number of field samples for the presence of these species. Two methodologies, one with IMS and the other without IMS, were employed for recovery of the Brucella species from cheese samples. IMS in conjunction with the PCR assay was determined to detect as low as 3x10(2) bacteria/mL, while the limit of detection with the other extraction procedure was 3x10(3) bacteria/mL. In the analysis of 40 cheese samples collected from various markets, only B. abortus was detected by PCR using both DNA extraction procedures in two (5%) samples. No positive results were obtained by culture and B. melitensis was not found in any cheese samples examined. The results suggest that this technique is promising owing to its pace and high sensitivity and should aid in direct detection of Brucella species from complex food samples.
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Affiliation(s)
- H Ongör
- Department of Microbiology, Faculty of Veterinary Medicine, University of Firat, Elazig, Turkey.
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Abstract
PURPOSE Although bowel preparation is traditionally used in elective colorectal surgery, its value is debatable. The aim of this study was to evaluate the influence of mechanical bowel preparation on healing of colonic anastomoses. MATERIAL AND METHODS Twenty-seven rats were divided into three groups, each of nine animals. All rats had left colonic resection and anastomosis. Group 1 and group 2 were the control and sham group, respectively. Group 3 had colonic lavage before resection and anastomosis. On the fourth postoperative day, animals were killed; bursting pressure and tissue hydroxyproline concentrations were measured and compared. RESULTS The median bursting pressure values were 87 (range 4-135) mmHg in group 1, 88 (range 78-136) mmHg in group 2 and 76.0 (range 57.0-125) mmHg in group 3. The differences between bursting pressure values of the groups were not statistically significant (p= 0.07). The median tissue hydroxyproline concentrations were 3.25 (range 2.63-5.16) mg/mg in group 1, 4.15 (range 1.54-5.72) mg/mg in group 2 and 3.52 (range 2.04-5.27) mg/mg in group 3. The differences between tissue hydroxyproline concentrations of the groups were not statistically significant (p = 0.7). CONCLUSION Mechanical bowel preparation is not necessary for enhancing colonic anastomotic integrity in the rat.
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Affiliation(s)
- H Mersin
- Department of Surgery, Ankara Oncology Hospital, Ankara, Turkey.
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Abstract
Various studies have reported a significant reduction in tensile bond strength of brackets when bonding is carried out immediately after bleaching. The purpose of this investigation was to determine the effect of an antioxidant agent on the tensile bond strength values of metal brackets bonded with composite resin to human enamel after bleaching with carbamide peroxide (CP). A total of 80 extracted premolar teeth were randomly divided into three bleaching groups of 10 per cent CP and an unbleached control group. The specimens in group 1 were bonded immediately after bleaching; group 2 were stored in an artificial saliva solution for 7 days after bleaching; group 3 were treated with 10 per cent sodium ascorbate, immediately before bonding, whereas the unbleached specimens in group 4 had no treatment before bonding. Tensile bond strengths were established in MPa. To evaluate the amount of resin left on the enamel surfaces after debonding, the adhesive remnant index (ARI) scores were used. The tensile bond strength data were analyzed with the Kruskal-Wallis test and pairwise comparisons were made by the Mann-Whitney U test at a significance level of P < 0.05. The brackets bonded immediately after bleaching revealed significantly lower tensile bond strengths than those of unbleached enamel (P = 0.000). No statistically significant differences in tensile bond strength were noted when the delayed-bonding (P = 6.000) and antioxidant-treated (P = 0.2757) groups were compared with the control group. The antioxidant treatment immediately after bleaching was effective in reversing the tensile bond strength of brackets.
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Affiliation(s)
- H Bulut
- Department of Orthodontics, Faculty of Dentistry, University of Ege, 35100 Izmir, Turkey.
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Ongör H, Cetinkaya B, Karahan M, Açik MN, Bulut H, Muz A. Detection of Coxiella burnetii
by immunomagnetic separation-PCR in the milk of sheep in Turkey. Vet Rec 2004; 154:570-2. [PMID: 15144006 DOI: 10.1136/vr.154.18.570] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- H Ongör
- Department of Microbiology, Faculty of Veterinary Medicine, University of Firat, 23119 Elazig, Turkey
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Yilmaz F, Timurkaan N, Bulut H. Detection of infectious laryngotracheitis virus in trigeminal ganglia by avidin-biotin complex method in chickens: short communication. Acta Vet Hung 2004; 52:167-71. [PMID: 15168748 DOI: 10.1556/avet.52.2004.2.5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Detection of infectious laryngotracheitis virus (ILTV) by avidin-biotin complex (ABC) method was studied in trigeminal ganglia (TRG) during the acute and post-acute or latent period in chickens inoculated with an A96 strain of the antigen. TRG tissue samples were collected from uninoculated (10 chickens) and inoculated (30 chickens) animals at various intervals post inoculation (PI), and stained by the ABC method. The results indicated that no ILTV antigen was detected in the TRG between PI days 3 and 11. However, the antigen was detected in most of the chickens between PI days 13 and 41. It is concluded that the ABC method can be used successfully for the detection of ILTV antigens in TRG during post-acute or latent period.
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Affiliation(s)
- F Yilmaz
- Department of Pathology, Faculty of Veterinary Medicine, University of Firat, Elazig, Turkey
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Ongör H, Cetinkaya B, Açik MN, Karahan M, Bulut H. Detection of Chlamydophila abortus in ovine milk by immunomagnetic separation-polymerase chain reaction. ACTA ACUST UNITED AC 2004; 51:43-5. [PMID: 14995977 DOI: 10.1046/j.1439-0450.2003.00716.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The present study was carried out to investigate the presence of Chlamydophila abortus, the causative agent of ovine enzootic abortion, in milk samples collected from sheep flocks with and without the history of abortion in Eastern Turkey by means of immunomagnetic separation (IMS) in conjunction with the polymerase chain reaction (PCR). A total number of 201 milk samples collected from 10 flocks with abortion and four flocks without abortion were tested. In the analysis of the milk samples by IMS-PCR, correct amplification was obtained with three (1.5%) samples originating from one flock with abortion. In the digestion of PCR positive products by AluI, restriction profiles observed in all three samples were determined to be the same as C. abortus S26/3.
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Affiliation(s)
- H Ongör
- Department of Microbiology, Faculty of Veterinary Medicine, University of Firat, 23119 Elazig, Turkey
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Mersin H, Yildirim E, Bulut H, Berberoğlu U. The prognostic significance of total lymph node number in patients with axillary lymph node-negative breast cancer. Eur J Surg Oncol 2003; 29:132-8. [PMID: 12633555 DOI: 10.1053/ejso.2002.1285] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
AIM In node-negative breast cancer patients, several factors for survival have been evaluated and currently, some of them are accepted for their prognostic and/or predictive values after validation in the separate data sets. The prognostic significance of increases in the number of pathologically detectable axillary lymph nodes in the node-negative patients could not been established clearly. To address this question, we have reviewed our patients' records. METHODS A retrospective cohort study was conducted in pathologically node-negative patients who underwent modified radical mastectomy for stage I and II breast cancer. Survival and multivariate prognostic factor analyses were carried out to determine whether the number of tumour-free lymph nodes in complete axillary dissection material in addition to known factors was significant for the outcomes. RESULTS Two hundred and seventy consecutive patients were eligible to enter the trial. The median observation time and the median number of tumour-free lymph nodes were 61 (from 30 to 120) months and 18 (from 10 to 44), respectively. The cohort was divided into the groups according to the number of nodes. The 5-year event-free and overall survivals were 92.5 and 98.3% for patients who had 18 lymph nodes or less, and 70 and 86.7% for those who had more than 18 negative nodes, respectively (P < 0.00001). Multivariate analysis for event-free survival demonstrated that the number of lymph nodes (Relative risk: 3.2 and 95% confidence interval: 1.7 to 5.9) in addition to the pathological tumour size and age was the most important independent prognosticator. In similar, multivariate analysis for overall survival showed that the number of lymph nodes together with the tumour size was the significant indicator (RR of cancer-specific dying in patients who had more than 18 nodes: 3.1 and 95% CI: 1.2 to 8.5). CONCLUSION The increases in number of tumour-free lymph nodes are clinically important and this parameter should be taken into consideration in the breast cancer patients without metastatic lymph nodes.
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Affiliation(s)
- H Mersin
- Department of Surgery, Ankara Oncology Teaching and Research Hospital, Ankara, Turkey.
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Affiliation(s)
- M Dabak
- Department of Internal Medicine, Firat Universitesi, Veteriner Fakultesi, 23119 Elazig, Turkey
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Altinyollar H, Bulut H, Berberoglu U. Is suprahyoid dissection a diagnostic operation in lower lip carcinoma? J Exp Clin Cancer Res 2002; 21:29-30. [PMID: 12071525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
Carcinoma of the lower lip can be treated primarily by surgical procedures. One of the most prominent characteristics of the tumor is that it can metastasize to submental and submandibular lymph nodes. For that reason, bilateral suprahyoid dissection with surgical treatment of the primary lesion is a diagnostic approach for some investigators and therapeutic for others. We evaluated whether bilateral suprahyoid dissection is a diagnostic approach in lower lip cancer or not. Prophylactic suprahyoid dissection had been performed in 53 patients who had been operated for squamous cell carcinoma of the lower lip in Ankara Oncology Hospital. Four of the cases were female and 49 male. The median age was 62. Forty-five out of 53 cases had T2 lesions and in the remaining 8 had T3 lesions. All patients were clinically node negative. In the dissection material, lymph node metastasis were present in 8 out of the 45 cases who had T2 tumors (17,7 %) and in 2 out of the 8 cases who had T3 tumors (25%). Three of the 10 cases who had regional lymph node metastasis underwent radiotherapy after surgery. Seven of them did not receive radiotherapy. Thirty-nine patients had regular follow-up for a median of 4.5 years. During this period, none of the patients had regional recurrence in cervical lymph nodes. According to these data, we conclude that bilateral suprahyoid dissection is both a diagnostic and a therapeutic approach in T2, T3 and clinically N0 lower lip tumors.
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Affiliation(s)
- H Altinyollar
- Dept. of General Surgery, Ankara Oncology Hospital, Turkey
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Aras A, Cinsar A, Bulut H. The effect of zigzag elastics in the treatment of Class II division 1 malocclusion subjects with hypo- and hyperdivergent growth patterns. A pilot study. Eur J Orthod 2001; 23:393-402. [PMID: 11544789 DOI: 10.1093/ejo/23.4.393] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The aim of this study was to investigate the effect of zigzag elastics in the treatment of Class II division 1 malocclusion subjects with hypo- or hyperdivergent growth patterns. Two groups were established, each consisting of 10 subjects classified as hypo- or hyperdivergent according to their pre-treatment SN-GoGn angle. The cephalometric radiographs taken before and after an elastic application period of approximately 4 months were used to generate 22 variables. In both groups, there were no statistically significant differences in the vertical position of the lower molars, the SN-GoGn angle or the inclination of the lower incisors, whereas the sagittal skeletal relationship was improved as a result of an increase in the SNB angle and the mandibular length (P < 0.01). Upper incisor extrusion was statistically significant in both groups (P < 0.05). The downward rotation of the occlusal plane and the increase in overbite were found to be significant in the hypodivergent group (P < 0.05). Significant differences were observed between the groups in the extrusion of the upper incisor, the inclination of the occlusal plane, and the amount of overbite (P < 0.05). The results show that the zigzag elastic system is preferable, especially in hyperdivergent Class II division 1 subjects, as the use of such elastics does not cause an unfavourable effect on vertical jaw base relationship.
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Affiliation(s)
- A Aras
- Department of Orthodontics, University of Ege, Turkey
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