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Acute Effect Of Speed Exercise On Nitric Oxide (No) Level Of Footballers, Özcan Saygin
Acute Effect Of Speed Exercise On Nitric Oxide (No) Level Of Footballers, Özcan Saygin
Turkish Journal of Medical Sciences
Aim: Exercise is one of the low-cost and easiest ways for improving life standards and physical fitness, and reducing body stress. Nitric oxide (NO) is defined as the ''surprising soldier mediator'' of biological systems. NO is one of the relaxation factors coming from the vascular endothelium. This relaxation in smooth muscles leads to vasodilatation in veins. The purpose of this study is to evaluate the acute effect of 20-meter sprints of footballers on NO levels. Materials and Methods: 22 footballers with an age range of 18-32 were voluntarily enrolled in the study. The heights and weights of the subjects were …
Human Chorionic Gonadotropin Levels In Serum And Follicular Fluid Are Correlated With Body Mass Index Rather Than The Route Of Administration Of Purified Hcg In Art Cycles, Özlem Moralioğlu Üçkardeşler, Sevtap Kiliç, Gülnur Özakşi̇t, Çi̇ğdem Kunt, Ayça Işik, Beri̇l Yüksel, Leyla Mollamahmutoğlu
Human Chorionic Gonadotropin Levels In Serum And Follicular Fluid Are Correlated With Body Mass Index Rather Than The Route Of Administration Of Purified Hcg In Art Cycles, Özlem Moralioğlu Üçkardeşler, Sevtap Kiliç, Gülnur Özakşi̇t, Çi̇ğdem Kunt, Ayça Işik, Beri̇l Yüksel, Leyla Mollamahmutoğlu
Turkish Journal of Medical Sciences
Aim: To investigate hCG levels in follicular fluid and serum after intramuscular (IM) or subcutaneous (SC) administration of purified hCG, and their association with oocyte maturation and body mass index (BMI) in women undergoing IVF-ET. Materials and Methods: The study included 160 infertile women that were recruited between April and June 2007. Standard-dose long IVF protocols were used for ovulation induction. SC or IM injections were used to administer hCG. BMI, oocyte maturity, and serum and follicular fluid hCG levels were the main outcome measurements. Results: hCG levels in serum and follicular fluid in the 2 groups were similar. A …
Hiv/Aids Knowledge Among A Group Of Youngsters Under Social Protection In Turkey, Veli̇ Duyan, Gülsüm Çamur Duyan
Hiv/Aids Knowledge Among A Group Of Youngsters Under Social Protection In Turkey, Veli̇ Duyan, Gülsüm Çamur Duyan
Turkish Journal of Medical Sciences
Aim: A number of radical changes in social conditions have created new hazards, such as STDs and HIV/AIDS, for young people. The purpose of this research was to determine the level of HIV/AIDS knowledge and information sources of the youngsters who are under social protection in Turkey. Materials and Methods: Participants of the study were 649 female and 739 males between the ages of 12 and 24 (M = 15.3, SD = 1.92) who are under social protection in Turkey. Data were collected using a demographic questionnaire, sources of HIV/AIDS information questionnaire, and HIV/AIDS questionnaire. The questionnaires were administered in …
Primary Mucosal Desmoplastic Melanoma Of The Gingiva, Reşi̇t Doğan Köseoğlu, İbrahi̇m Aladağ, Engi̇n Sezer, Ni̇lüfer Özkan
Primary Mucosal Desmoplastic Melanoma Of The Gingiva, Reşi̇t Doğan Köseoğlu, İbrahi̇m Aladağ, Engi̇n Sezer, Ni̇lüfer Özkan
Turkish Journal of Medical Sciences
Desmoplastic melanoma (DM) is a very rare variant of malignant melanoma. Mucosal involvement in DM is exceedingly rare and the differential diagnosis is problematic for surgical pathologists. To the best of our knowledge only 16 cases of DM originating from mucosal surfaces of the oral cavity have been described in the literature. Herein we describe a 59-year-old male with primary DM of the oral mucosa and discuss the status of p53, caspase-3, and FasL (Fas ligand) in the pathogenesis of this rare disease.
Annexin A2, A7, And A11 Expression In Head And Neck Squamous Cell Carcinoma*, Sema Hücümenoğlu, Berrak Gümüşkaya, Murat Alper, Bülent Öcal, Erdem Karabulut
Annexin A2, A7, And A11 Expression In Head And Neck Squamous Cell Carcinoma*, Sema Hücümenoğlu, Berrak Gümüşkaya, Murat Alper, Bülent Öcal, Erdem Karabulut
Turkish Journal of Medical Sciences
Aim: To investigate annexin A2 (ANXA2), annexin A7 (ANXA7), and annexin A11 (ANXA11) expression in head and neck squamous cell carcinoma (HNSCC). Although overexpression of ANXA2 has been reported in HNSCC, there are no studies on ANXA7 or ANXA11 in the same region. Materials and Methods: ANXA2, ANXA7, and ANXA11 were immunohistochemically studied in paraffin-embedded sections obtained from 43 patients with HNSCC. Results: ANXA2 and ANXA11 expression was more intense in the tumor areas in HNSCC (P = 0 for ANXA2, P = 0.05 for ANXA11). Both the tumors and normal mucosae showed membranous staining for ANXA7 and ANXA2, while …
The Effects Of Adding Tramadol To Ropivacaine On Axillary Brachial Plexus Blockade In Uremic Patients*, Bayazit Di̇kmen, Mehmet Gamli, Eyüp Horasanli, Di̇lşen Örnek, Melekşah Pekel, Aydin Selçuk
The Effects Of Adding Tramadol To Ropivacaine On Axillary Brachial Plexus Blockade In Uremic Patients*, Bayazit Di̇kmen, Mehmet Gamli, Eyüp Horasanli, Di̇lşen Örnek, Melekşah Pekel, Aydin Selçuk
Turkish Journal of Medical Sciences
Aim: To evaluate the effect of tramadol added to ropivacaine on quality of anesthesia, onset of sensory and motor blockade, duration of sensory and motor blockade, and first analgesic request time for axillary brachial plexus block in uremic patients. Materials and methods: After institutional approval and informed consent had been obtained, 45 ASA III uremic patients (age range 30-80) scheduled for arteriovenous fistula surgery were included in the study. Patients were randomly allocated into 2 groups. Axillary block was performed with a peripheral nerve stimulator by multiple injection technique. Patients in Group R (n = 23) received 38 mL of …
Short Term Outcomes Of The Use Of High Dose Intravenous Methylprednisolone For Acute Optic Neuritis In A Central Anatolian Population, Yasemi̇n Özdamar, Gölge Acaroğlu, Bayazit İlhan, Seyhan S. Özkan, Kuddusi̇ Teberi̇k
Short Term Outcomes Of The Use Of High Dose Intravenous Methylprednisolone For Acute Optic Neuritis In A Central Anatolian Population, Yasemi̇n Özdamar, Gölge Acaroğlu, Bayazit İlhan, Seyhan S. Özkan, Kuddusi̇ Teberi̇k
Turkish Journal of Medical Sciences
Aim: To describe the clinical characteristics and outcome of optic neuritis (ON) cases treated with high dose intravenous methylprednisolone (IVMP) in a tertiary referral clinic in Ankara, Turkey. Materials and methods: Consecutive patients in the past 5 years with acute isolated ON, who were treated with IVMP and had a follow-up of at least 3 months, were reviewed. Symptoms and findings, results of brain magnetic resonance imaging (MRI), etiologies, visual outcomes, and side effects of the treatment were evaluated. Results: Etiological causes could be elicited in 57 (85.1%) of 67 patients; the most common of which was multiple sclerosis (MS). …
The Characteristics Of Suicidal Cases Regarding The Gender, Aysun Balseven Odabaşi, Nursel Türkmen, Recep Fedakar, Ali̇ Riza Tümer
The Characteristics Of Suicidal Cases Regarding The Gender, Aysun Balseven Odabaşi, Nursel Türkmen, Recep Fedakar, Ali̇ Riza Tümer
Turkish Journal of Medical Sciences
Aim: We studied the patterns of suicide in forensic autopsies performed in Bursa province of Turkey to determine gender differences, incidence of suicide, subgroups of the population most vulnerable to such deaths, and suicide methods used. Materials and methods: Nine hundred fifty-five death cases due to suicide underwent forensic autopsy between 1996 and 2005 in Bursa were included into the study. All of the cases were analyzed in terms of age, gender, and method of suicide, time of year, and alcohol use. Results were subjected to discriminant analyses using SPSS 11.0. Results: There were 955 cases, with 682 males (12-95 …
General Characteristics Of Paternity Test Applicants, Ayşi̇m Tuğ, Gülümser Gülteki̇n Akduman
General Characteristics Of Paternity Test Applicants, Ayşi̇m Tuğ, Gülümser Gülteki̇n Akduman
Turkish Journal of Medical Sciences
Aim: This research was done to fill the gap in research on the social dimensions of paternity testing by determining the reasons for the suspicion and some characteristics of families who applied for a paternity test. Materials and methods: This research was performed with 50 men that applied for paternity testing. The bi-sectional questionnaire was conducted by means of the interview method. The questionnaire comprised questions on age, education, the reason for and duration of paternity suspicion, domestic violence linked to the paternity suspicion, and plans for the future following the test. The data were assessed with SPSS 10.0 and …
Humoral Immunity And Haemoglobin F (Hbf) Status In Steady State Adult Nigerian Sickle Cell Disease Patients With Asymptomatic Malaria, John Ayodele Olaniyi, Olatubosun Ganiyu Arinola
Humoral Immunity And Haemoglobin F (Hbf) Status In Steady State Adult Nigerian Sickle Cell Disease Patients With Asymptomatic Malaria, John Ayodele Olaniyi, Olatubosun Ganiyu Arinola
Turkish Journal of Medical Sciences
Aim: Nigeria, where malaria is prevalent, has the largest sickle cell gene pool in the world. To this end, there is a need for increased understanding of the pathophysiology of HbSS patients in a malaria endemic zone to reduce mortality. Haematology Department, University College Hospital, Ibadan, Nigeria. Materials and methods: The levels of HbF, IgG, IgA, IgM, transferin (TRF), C-reactive protein (CRP), and haptoglobin (HPT) were determined in 14 Nigerians having HbAA genotype with malaria parasitaemia (HbAA +MP), 17 Nigerians having haemoglobin AA genotype without malaria parasitaemia (HbAA -MP), 15 Nigerians having haemoglobin SS genotype without malaria parasitaemia (HbSS -MP), …
Mild And Efficient Iodination Of Aromatic Compounds With Trichloroisocyanuric Acid/I_2/Wet Sio_2 System, Batool Akhlaghinia, Marzieh Rahmani
Mild And Efficient Iodination Of Aromatic Compounds With Trichloroisocyanuric Acid/I_2/Wet Sio_2 System, Batool Akhlaghinia, Marzieh Rahmani
Turkish Journal of Chemistry
Iodoarenes can be obtained using trichloroisocyanuric acid/I_2/wet SiO_2 system at room temperature with high yield in CH_2Cl_2.
Chiral Calixarenes, Abdulkadi̇r Sirit, Mustafa Yilmaz
Chiral Calixarenes, Abdulkadi̇r Sirit, Mustafa Yilmaz
Turkish Journal of Chemistry
No abstract provided.
The Effect Of Electrocatalytic Activity And Crystal Structure Of Pbo_2 Surfaces On Polyphenylene Oxide (Ppo) Production In Acetonitrile, Serdar Abaci, Atti̇la Yildiz
The Effect Of Electrocatalytic Activity And Crystal Structure Of Pbo_2 Surfaces On Polyphenylene Oxide (Ppo) Production In Acetonitrile, Serdar Abaci, Atti̇la Yildiz
Turkish Journal of Chemistry
The crystallographic nature of PbO_2 films was changed by optimizing the electrolysis conditions in an electrodeposition solution of PbO_2. These PbO_2 films were then used to prepare PPO films. It was determined that \alpha and \beta modifications, and relative degrees of crystallinity had profound effects on the electrocatalytic performance of PbO_2 films in the production PPO films.
The Synthesis, Characterization And Energy Transfer Efficiency Of A Dithienylpyrrole And Bodipy Based Donor-Acceptor System, Taner Atalar, Ati̇lla Ci̇haner, Fati̇h Algi
The Synthesis, Characterization And Energy Transfer Efficiency Of A Dithienylpyrrole And Bodipy Based Donor-Acceptor System, Taner Atalar, Ati̇lla Ci̇haner, Fati̇h Algi
Turkish Journal of Chemistry
A dithienylpyrrole-BODIPY based donor-acceptor system with 1,4-phenylene spacer as a model system for energy transfer was designed and synthesized. Absorption and emission spectra have revealed an efficient resonance energy transfer from dithienylpyrrole as donor to BODIPY as acceptor.
Methanol Dehydration Reaction To Produce Clean Diesel Alternative Dimethylether Over Mesoporous Aluminosilicate-Based Catalysts, Di̇lek Varişli, Kenan Cem Tokay, Ayşegül Çi̇ftçi̇, Ti̇mur Doğu, Gülsen Doğu
Methanol Dehydration Reaction To Produce Clean Diesel Alternative Dimethylether Over Mesoporous Aluminosilicate-Based Catalysts, Di̇lek Varişli, Kenan Cem Tokay, Ayşegül Çi̇ftçi̇, Ti̇mur Doğu, Gülsen Doğu
Turkish Journal of Chemistry
Due to its good burning characteristics and high cetane number, dimethylether (DME) is considered as a highly attractive and clean alternative to diesel fuel. This ether can be produced by methanol dehydration reaction over solid acid catalysts. In the present study, activities of mesoporous aluminosilicate catalysts prepared by the hydrothermal synthesis route and containing Al/Si atomic ratios ranging between 0.03 and 0.18 were tested in methanol dehydration. The optimum Al/Si ratio was 0.09 for DME synthesis. Activity of silicotungstic acid (STA) impregnated aluminosilicate was also tested. This STA impregnated catalyst showed very high DME yield values at temperatures as low …
Zeolite Catalyzed Efficient Synthesis Of Perimidines At Room Temperature, Akbar Mobinikhaledi, Naser Forughifar, Nemat Bassaki
Zeolite Catalyzed Efficient Synthesis Of Perimidines At Room Temperature, Akbar Mobinikhaledi, Naser Forughifar, Nemat Bassaki
Turkish Journal of Chemistry
Arylperimidines, 3(a-l), were synthesized in good yields by cyclocondensation reaction of 1,8-diaminonaphthalene and aromatic aldehydes in the presence of NaY zeolite as a catalyst. The simple environmentally benign nature, reusability of the catalyst, and the easy work-up reaction are some of the advantages of this protocol.
Dynamic ^1h-Nmr Demonstration Of Anomeric Effect And Structure: Conformational And Configurational Analysis Of N-2-(1,4-Dioxane)-N'-(P-Methylbenzenesulfonyl)- O-(P-Methylphenoxy) İsourea, Ali Reza Modarresi-Alam, Hossein A. Dabbagh
Dynamic ^1h-Nmr Demonstration Of Anomeric Effect And Structure: Conformational And Configurational Analysis Of N-2-(1,4-Dioxane)-N'-(P-Methylbenzenesulfonyl)- O-(P-Methylphenoxy) İsourea, Ali Reza Modarresi-Alam, Hossein A. Dabbagh
Turkish Journal of Chemistry
The conformational and configurational behavior and the structure of N-2-(1,4-dioxane)-N'-(p-methylbenzenesulfonyl)-O- (p-methylphenoxy) isourea (1) were studied using dynamic NMR. The endo-anomeric effect, hydrogen bonding, temperature, and polarity of solvent control the population of dioxane ring conformers or anomers but not the configuration interconversion of the imine of the imidoyl moiety. Dynamic ^1H-NMR, \Delta H°, \Delta S°, \Delta G°, and \Delta G^{\ddag} analysis of 1 demonstrates that the dioxane ring adopts the chair conformation, that the imidoyl amino group prefers axial conformation, and that the tosyl and tolyl groups about the C=N bond retain the E configuration.
Secondary Metabolites From Nepeta Heliotropifolia, Zühal Güvenalp, Hi̇lal Özbek, Ayşe Kuruüzüm-Uz, Cavi̇t Kazaz, L. Ömür Demi̇rezer
Secondary Metabolites From Nepeta Heliotropifolia, Zühal Güvenalp, Hi̇lal Özbek, Ayşe Kuruüzüm-Uz, Cavi̇t Kazaz, L. Ömür Demi̇rezer
Turkish Journal of Chemistry
Two iridoid glycosides, ixoroside (1) and nepetanudoside B (2); 1 phenylpropanoid glycoside, coniferine (3); 2 flavone glycosides, apigenin 7-O-glucuronide (4) and apigenin 7-O-glucopyranoside (5); 2 triterpenes, oleanolic acid (6) and ursolic acid (7); and 1 sterol, \beta-sitosterol (8), were isolated from the aerial parts of Nepeta heliotropifolia Lam. (Lamiaceae). Their structures were identified by means of spectroscopic methods (1D- and 2D-NMR, UV, and EIMS).
Preparation And Characterization Of Magnetic Chitosan Nanospheres, Doina Hritcu, Marcel I. Popa, Nuculina Popa, Vasile Badescu, Vera Balan
Preparation And Characterization Of Magnetic Chitosan Nanospheres, Doina Hritcu, Marcel I. Popa, Nuculina Popa, Vasile Badescu, Vera Balan
Turkish Journal of Chemistry
A method for the preparation of magnetite/chitosan composite nanoparticles was developed. Colloidal magnetite particles (Fe_3O_4 produced by co-precipitation and stabilized in suspension by adding a non-ionic surfactant (Pluronic F127) were subsequently covered with a layer of chitosan (CS) prepared by ionotropic gelation using sodium tripolyphosphate (STPP) as a crosslinking agent. The products were characterized in terms of the following parameters: size distribution and \zeta-potential (by laser diffraction analysis), surface morphology (TEM), composition (FTIR, elemental analysis), magnetic properties (magnetic susceptibility analysis), and concentration of surface functional groups (potentiometric titration). The synthesis parameters were optimized for obtaining uniformly distributed colloidally stable, biocompatible …
4h-Pyran-4-One Derivatives:; Leading Molecule For Preparation Of Compounds With Antimycobacterial Potential, Demet Us, Ece Gürdal, Barkin Berk, Si̇nem Öktem, Tanil Kocagöz, Berrak Çağlayan, Işil Aksan Kurnaz, Di̇lek Demi̇r Erol
4h-Pyran-4-One Derivatives:; Leading Molecule For Preparation Of Compounds With Antimycobacterial Potential, Demet Us, Ece Gürdal, Barkin Berk, Si̇nem Öktem, Tanil Kocagöz, Berrak Çağlayan, Işil Aksan Kurnaz, Di̇lek Demi̇r Erol
Turkish Journal of Chemistry
A series of 3-hydroxy-6-methyl-2-((4-substitutedpiperazin-1- yl)methyl)-4H-pyran-4-one structured compounds were synthesized by reacting 5-hydroxy-2-methyl-4H-pyran-4-one with suitable piperazine derivatives using Mannich reaction conditions. Antibacterial activities of the compounds for E. coli, S. paratyphi, S. flexneri, E. gergoviae, and M. smegmatis were assessed in vitro by using broth dilution for determination of the minimum inhibitory concentration (MIC). In addition, their inhibitory effects over DNA gyrase enzyme were evaluated using a DNA gyrase supercoiling assay. Among the synthesized compounds; compound 7 showed a 4 \mu g/mL MIC value for M. smegmatis, whereas the other compounds demonstrated moderate to high activity. Those tested in the supercoiling …
Partial Regeneration Of Ni-Based Catalysts For Hydrogen Production Via Methane Cracking Part Ii: Modeling And Optimization, Reyyan Koç, Erdoğan Alper, Eric Croiset, Ali Elkamel
Partial Regeneration Of Ni-Based Catalysts For Hydrogen Production Via Methane Cracking Part Ii: Modeling And Optimization, Reyyan Koç, Erdoğan Alper, Eric Croiset, Ali Elkamel
Turkish Journal of Chemistry
High purity, carbon monoxide-free hydrogen and filamentous carbon can be produced by thermo-catalytic cracking of methane. Carbon filaments continue to grow until the catalyst deactivates because of carbon encapsulation. Regeneration of catalyst is important to maintain a continuous process. Our work on optimization of the partial regeneration method showed that activity of the catalyst can be sustained for longer times by gasifying not all but some extent of the deposited carbon. In the previous work, a kinetic model was developed to be able to understand the reaction mechanism of deactivation of fresh catalyst at the molecular level. The objective of …
Synthesis And Single Crystal Structure Analysis Of Three Novel Benzoylthiourea Derivatives, Gülten Kavak, Süheyla Özbey, Gün Bi̇nzet, Nevzat Külcü
Synthesis And Single Crystal Structure Analysis Of Three Novel Benzoylthiourea Derivatives, Gülten Kavak, Süheyla Özbey, Gün Bi̇nzet, Nevzat Külcü
Turkish Journal of Chemistry
N,N-dimethyl-N' -(2-methylbenzoyl)thiourea, C_{11}H_{14}N_2SO (HL^1), N,N-dibutyl-N' -(2-methylben\-zoyl)thiourea, C{17}H{26}N2SO (HL^2), and N,N-dihexyl-N' -(2-methylbenzoyl) thiourea, C{21}H{34}N2SO (HL^3) were synthesized and characterized by elemental analysis, spectroscopic methods (FT-IR, NMR), and single crystal X-ray diffraction. Compound HL^1 crystallizes in the monoclinic system, space group P21/c, Z = 4. Compound HL^3 also crystallizes in the monoclinic system, space group P21/n, Z = 8 with 2 independent molecules in the asymmetric unit. Compound HL^2 crystallizes in the orthorhombic system, space group Pcnn, Z = 8. In all compounds, molecules form dimers through the strong intermolecular N-H...S hydrogen bonds. Moreover, there are different types of intra- and inter-molecular …