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21.
Erkut S Küçükesmen HC Eminkahyagil N Imirzalioglu P Karabulut E 《Operative dentistry》2007,32(1):84-93
This study evaluated the effect of two different types of provisional luting agents (RelyX Temp E, eugenol-based; RelyX Temp NE, eugenol-free) on the shear bond strengths between human dentin and two different resin-based luting systems (RelyXARC-Single Bond and Duo Link-One Step) after cementation with two different techniques (dual bonding and conventional technique). One hundred human molars were trimmed parallel to the original long axis, to expose flat dentin surfaces, and were divided into three groups. After related surface treatments for each specimen, the resin-based luting agent was applied in a silicone cylindrical mold (3.5 x 4 mm), placed on the bonding-agent-treated dentin surfaces and polymerized. In the control group (n = 20), the specimens were further divided into two groups (n = 10), and two different resin-based luting systems were immediately applied following the manufacturer's protocols: RelyX ARC-Single Bond (Group I C) and Duo Link-One Step (Group II C). In the provisionalization group (n = 40), the specimens were further divided into four subgroups of 10 specimens each (Group I N, I E and Group II N, II E). In Groups I N and II N, eugenol-free (RelyX NE), and in groups I E and II E, eugenol-based (RelyX E) provisional luting agents (PLA), were applied on the dentin surface. The dentin surfaces were cleaned with a flour-free pumice, and the resin-based luting systems RelyX ARC (Group I N and E) and Duo Link (Group II N and E) were applied. In the Dual bonding groups (n = 40), the specimens were divided into four subgroups of 10 specimens each (Group I ND, ED and Group II ND, ED). The specimens were treated with Single Bond (Groups I ND and ED) or One Step (Groups II ND and ED). After the dentin bonding agent treatment, RelyX Temp NE was applied to Groups I ND and II ND, and RelyX Temp E was applied to Groups I ED and II ED. The dentin surfaces were then cleaned as described in the provisionalization group, and the resin-based luting systems were applied: RelyX ARC-Single Bond (Group I ND and ED) and Duo Link-One Step (Group II ND and ED). After 1,000 thermal cycles between 5 degrees C and 55 degrees C, shear bond testing was conducted at a crosshead speed of 0.5 mm/minutes. One-way ANOVA, followed by a post hoc Tukey test (alpha = 0.05) was done. The dentin-resin-based luting system interfaces were evaluated under a scanning electron microscope. There was a significant reduction in the mean shear bond strength values of groups subjected to the provisionalization compared to the control and dual bonding technique groups (p < 0.05). The composition of provisional luting did not create a significant difference with regard to reducing shear bond strength values (p > 0.05). With regard to resin based luting systems, the shear bond strength values of the double-bond technique groups were not significantly different from the controls (p > 0.05). 相似文献
22.
Yılmaz Ali Haydar Cinislioglu Ahmet Emre Demirdöğen Saban Oğuz Yılmazel Fatih Kursat Sam Emre Karabulut Ibrahim Koç Mahmut Özbey Isa 《International urology and nephrology》2022,54(11):2813-2818
International Urology and Nephrology - Premature ejaculation (PE) is a common sexual dysfunction that significantly affects the quality of life of the patient and their partner. We aimed to compare... 相似文献
23.
S. Karabulut A. Demiroğlu‐Zergeroğlu E. Yılmaz F. Sağır N. Delikara 《Andrologia》2014,46(10):1113-1117
Sperm or testicular tissue cryopreservation is performed in cases of male infertility as a treatment for the preservation of fertility. When these sperm cells are used in assisted reproductive techniques, fertilisation rates, developmental and implantation potential of embryos decrease and the abortion rates increase. In the present work, differences of both phosphorylation and expression levels of p53 and Mitogen‐activated protein kinases (MAPK) proteins were analysed in 61 individual sperm samples before and after cryopreservation. We observed that p53 protein residue at Ser 15 was phosphorylated after cryopreservation. Because MAPK pathway activations may be involved in p53 phosphorylation, MAPK/ERK, Stress‐activated protein kinases (SAPK)/JNK and p38MAPK proteins were also investigated. Analysis showed that p38MAPK phosphorylations increased significantly. However, ERK and JNK expressions and phosphorylations decreased, although the differences were not statistically significant. According to our results, it may be suggested that cryopreservation process activates p53 via p38 MAPK pathway that subsequently causes apoptosis, which may be related to sperm parameters. 相似文献
24.
Atrial fibrillation (AF) is a frequent arrhythmia complicating cardiac surgery, and generally occurs within the first week after surgery. Although there are some etiological mechanisms to explain the postoperative AF, the exact mechanisms of AF are not well clarified. In the present study, we would like to show the effect of MgSO4 infusion on P duration and P dispersion, and its relation with AF complication in patients undergoing coronary artery bypass grafting. The patients were randomly allocated into two groups. Group A consisted of 93 patients to whom 1.5 g/day MgSO4 infusion in 100 mL 0.9 NaCl solution (25 mL/hr) were applied the day before surgery, just after operation, and once daily for 4 days following surgery. Group B consisted of 55 control patients to whom 100 mL 0.9 NaCl solution (25 mL/hr) were applied at the same time points. Magnesium level was measured before the treatment and daily for the postoperative four days. As a result, AF developed in 2% of cases in group A, and in 36% of cases in group B (p < 0.001). Comparing the patients who developed AF, and who did not, no difference was detected with regard to baseline P max, P min, P dispersion and fourth day P min. But fourth day P max and P dispersion of patients who developed AF were significantly higher than who did not. Baseline Mg level were similar for those who developed AF, and who did not, but fourth day Mg level was significantly lower in AF group. As a result, our opinion that Mg infusion significantly decreased the incidence AF after cardiac bypass surgery was confirmed. And it's also clear that beneficial effect of MgSO4 is associated with its decreasing effect on P dispersion. 相似文献
25.
Engin-Ustün Y Ustün Y Sezgin B Karabulut AB Kiran TR Kafkasli A 《Journal of perinatal medicine》2007,35(5):399-402
OBJECTIVE: To establish the adenosine deaminase (ADA) activity in women who had been pregnant with a child suffering from central nervous system (CNS) anomaly. METHODS: The study group comprised 68 women who had been pregnant with an affected child, and 68 controls matched for age, gestational age and body mass index. Maternal venous blood was collected for measurement of ADA levels. We defined the diagnostic sensitivity, specificity and area under receiver-operating characteristic curve for ADA. RESULTS: Plasma ADA activity was significantly higher in the study group (12.3 U/L, range 1.7-33.3) compared to the median value of 3.3 U/L (range 1.1-34.4) in normal pregnancies (P<0.05). The cut-off point of ADA >5.9 U/L was associated with the highest combination of specificity (58.8%) and sensitivity (86.8%). CONCLUSION: ADA activity in women who have conceived a fetus with CNS malformations was significantly higher than that in normal pregnant women. 相似文献
26.
Büyükmumcu M Ustün ME Seker M Karabulut AK Uysal YY 《Surgical and radiologic anatomy : SRA》2003,25(5-6):368-371
The possibility for maxillary artery (MA) to petrous internal carotid artery (ICA) bypass was investigated. Five adult cadavers were dissected bilaterally. After zygomatic arch osteotomy, the coronoid process was sectioned at its base. An extensive infratemporal craniotomy was performed at the level of foramina ovale, rotundum and spinosum. The petrous portion of the ICA was exposed by drilling away the floor of the middle fossa, posterior to the foramen ovale and medial to the foramen spinosum. The MA was identified medial to the infratemporal crest and was followed in the pterygopalatine fossa, then transected at the origin of the infraorbital artery. The MA graft was brought posteromedially to reach the petrous ICA. The mean caliber of the MA before the origin of the infraorbital artery was 2.54±0.31 mm, 2.76±0.14 mm at the site of anastomosis, and 3.46±0.32 mm after giving off the middle meningeal artery. The average length of the MA between the middle meningeal artery and the infraorbital artery was 43.4±2.35 mm, and up to the site of anastomosis was 37.64±1.68 mm. We conclude that the length and diameter of the MA are sufficient for a tension-free anastomosis between MA and petrous ICA, and such a procedure could be used in the treatment of patients with tumors of the infratemporal fossa invading the high cervical ICA.
Electronic Supplementary Material The french version of this article is available in the form of electronic supplementary material and can be obtained by using the Springer Link server located at
Electronic Supplementary Material The french version of this article is available in the form of electronic supplementary material and can be obtained by using the Springer Link server located at
Étude anatomique des possibilités de by-pass entre la partie pétreuse de l'artère carotide interne et l'artère maxillaire
Résumé La possibilité d'un by-pass entre l'artère maxillaire et la partie pétreuse de l'artère carotide interne a été étudiée. Cinq cadavres adultes ont été disséqués des deux côtés. Après ostéotomie de l'arcade zygomatique, le processus coronoïde était sectionné à sa base. Une large craniotomie infra-temporale était effectuée au niveau du foramen ovale, du foramen rond et du foramen épineux. La partie pétreuse de l'artère carotide interne était exposée par fraisage du plancher de la fosse cérébrale moyenne, en arrière du foramen ovale et en dedans du foramen épineux. L'artère maxillaire était identifiée en dedans de la crête infra-temporale et suivie dans la fosse ptérygo-palatine, puis sectionnée à l'origine de l'artère infra-orbitaire. Le greffon d'artère maxillaire était transposé en dedans et en arrière pour atteindre la partie pétreuse de l'artère carotide interne. Le calibre moyen de l'artère maxillaire était de 2,54±0,31 mm à l'origine de l'artère infra-orbitaire, 2,76±0,14 mm au niveau de l'anastomose, et 3,46±0,32 mm après la naissance à l'artère méningée moyenne. La longueur moyenne de l'artère maxillaire entre l'artère méningée moyenne et l'artère infra-orbitaire était de 43,4±2,35 mm et au-delà du site d'anastomose était de 37,64±1,68 mm. Nous en avons conclu que la longueur et le diamètre de l'artère maxillaire était suffisant pour une anastomose sans tension entre l'artère maxillaire et la partie pétreuse de l'artère carotide interne. Ainsi, une telle technique pourrait être utilisée pour le traitement de patients porteurs d'une tumeur de la fosse infra-temporale envahissant la partie cervicale haute de l'artère carotide interne.相似文献
27.
Ilhan Karabicak Kagan Karabulut Savas Yuruker Tugrul Kesicioglu Necati Ozen 《The Indian journal of surgery》2017,79(2):111-115
Single-port laparoscopic surgery has the advantage of a hidden scar and reduced abdominal wall trauma. Although single-port laparoscopic surgery is widely performed for other organs, its application is very limited for liver resection. Here, we report our experience with nine patients who underwent single-port laparoscopic liver resection. Nine patients underwent single-port laparoscopic liver resection for the indications of hydatid cyst, hepatocellular carcinoma, and colorectal cancer liver metastasis. Nine patients were successfully treated with single-port laparoscopic surgery. The operative time was between 60 and 240 min. The only operative complication was bleeding up to 650 mL in a patient with cirrhosis. No postoperative complications occurred. All patients were discharged earlier than usual. Single-port laparoscopic liver surgery is a challenging surgery. Surgeon with the experience of laparoscopic liver surgery should perform the single-port laparoscopic liver surgery. It is technically feasible with a good outcome in well-selected patients. Initial cases must be benign lesions to avoid jeopardizing oncological safety. 相似文献
28.
29.
Erhan Tenekecioğlu M.D. Aziz Karabulut M.D. Mustafa Yılmaz M.D. 《Echocardiography (Mount Kisco, N.Y.)》2010,27(6):677-686
Increased blood pressure (BP) is associated with an increase in cardiovascular mortality and morbidity. We aimed to analyze the effect of increased BP onto the function of left atrial appendage (LAA) in early stages of hypertension. Transesophageal echocardiography (TEE) was prospectively performed to assess LAA functions in 120 patients with increased BP, and in 58 normotensive subjects without cardiovascular disease. Patients with increased BP were divided according to Joint National Committee VII (JNC VII) report: prehypertensive,stage‐1 hypertensive and stage‐2 hypertensive patients. During TEE, LAA late‐emptying velocities (LAAEV) were significantly reduced only in stage‐2 hypertensives as compared with control group (P < 0.001). In contrast, LAA late‐contracting velocity (LAA TDI‐D2) was significantly reduced in prehypertensive,stage‐1 hypertensive and stage‐2 hypertensive patients, when compared with control group (P < 0.05, P < 0.001, and P < 0.001, respectively). The LAA maximal areas were increased significantly only in stage‐2 hypertensive patients when compared with control group (P < 0.05). During TEE, left atrial spontaneous echocardiographic contrast was found in 2 of 36 patients in prehypertension group, in 7 of 40 patients in stage‐1 hypertension group, and in 10 of 44 patients in stage‐2 hypertension group. Left atrial thrombi were observed in 3 (6.8%) patients of stage‐2 hypertension group. In conclusion, in patients with untreated prehypertension and hypertension, elevation of afterload imposed on left atrium involved both left atrium and LAA, resulting in impairment of the LAA function. Tissue Doppler imaging (TDI) enables the detection of this functional impairment in early stages of hypertension, even in prehypertensive phase, when compared with conventional Doppler flow measurement of the LAA. Even in prehypertensive phase, BP should be decreased to normal levels to prevent the LAA dysfunction. (Echocardiography 2010;27:677‐686) 相似文献
30.
In this article, a 9-year-old boy with arterial priapism is presented. The patient was managed with the conservative measures including imipramine hydrochloride and a favorable outcome was achieved after 2 months of follow-up. The pathophysiology, diagnostic tools and treatment alternatives are discussed. 相似文献