Yazar "Kaya, H" seçeneğine göre listele
Listeleniyor 1 - 12 / 12
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Alveolar capillary membrane permeability in the patients with rheumatoid artritis(Springer-Verlag, 2001) Kaya, H; Balci, TA; Polat, M; Erdogan, S; Güllen, O[Abstract Not Available]Öğe Assessment of patients with erectile dysfunction using SPECT(Dr Dietrich Steinkopff Verlag, 2004) Cerci, SS; Kömek, H; Tamam, Y; Apak, I; Kaya, H[Abstract Not Available]Öğe Bilateral symmetrical Ollier disease and Tc-99m MDP bone scintigraphy(Lippincott Williams & Wilkins, 2004) Kaya, H; Komek, H; Cerci, SS; Tuzcu, SA[Abstract Not Available]Öğe Effect of granulocyte-macrophage colony-stimulating factor on treatment of acute osteomyelitis - An experimental investigation in rats(Springer-Verlag, 2001) Subasi, M; Kapukaya, A; Kesemenli, C; Kaya, H; Sari, IGranulocyte-macrophage colony-stimulating factor (GM-CSF) is a cytokine that affects the various developmental steps of hematopoietic cells and enhances the phagocytic activity of these cells. The effect of GM-CSF on acute osteomyelitis, developed in rats, was investigated. For this purpose, osteomyelitis was firstly developed through the direct inoculation of Staphylococcus aureus into rat tibial metaphysis. Twenty-four rats in which diagnosis of osteomyelitis was histopathologically established were divided into two groups. Antibiotic only was given to the first group, and antibiotic as well as CM-CSF to the second roup. Rats were followed up for 3 months with plain radiographs and scintigraphic methods using (67)Gacitrate. Material obtained from the rats that had been killed at the end of the 3rd month were histopathologicalIy investigated. One rat in the first group died. In another rat, chronic osteomyelitis developed and fracture was observed. In 12 rats of the second group, physical examination, plain radiographs, and histopathologic findings were normal. In scintigraphic studies with Ga-67-citrate, when the pre- and posttreatment values of the same groups were evaluated by the Mann-Whitney U-test, the mean values at 48 h after treatment were found to be significant (P < 0.05), indicating a decrease in the 2nd group (experimental group). In conclusion, the antibiotics were effective in the elimination of infection only together with neutrophils. In this manner, infections may be eliminated by strengthening the host's defense mechanism as well as by administering antibiotics. We believe that an adequate number of long-term studies will shed light on this issue. Besides we consider that this factor will be more important in the study of chronic osteomyelitis.Öğe The effects of electromagnetic field on distraction osteogenesis(Yonsei Univ Coll Medicine, 2003) Kesemenli, CC; Subasi, M; Kaya, H; Sert, C; Büyükbayram, H; Arslan, H; Necmioglu, SThe effects of electromagnetic field on distraction osteogenesis and new bony tissue were investigated. Twenty-five New Zealand rabbits were divided into an experimental (12 rabbits) and a control (13 rabbits) group. An osteotomy was performed on the right tibia in the diaphyseal region in both groups. The experimental group was exposed to a magnetic field of 50 Hz 1.0 mT for 3 hours a day for 13 weeks. The control group was kept in a similar environment but with no electromagnetic field. The distraction was continued until an increase of 10 mm was achieved. At weeks 4, 8, and 13, radiography, scintigraphy, and a biopsy were performed in both groups, and the results were statistically analyzed. The X-ray results were similar in both groups at all times. On the other hand while the scintigraphic and histopathological results were similar at weeks 4 and 13 in both groups, the osteoblastic activity was significantly greater in the experimental group at week 8 (p<0.01). In conclusion an electromagnetic field increases the osteoblastic activity and osteogenesis, but has little effect during the remodeling phase.Öğe Effects of whole-body chronic microwave exposure on some hormones of variously treated rats(Mbr Press Inc, 1999) Akdag, MZ; Sert, C; Kaya, H; Dasdag, S; Çelik, MSTo investigate the effects of chronic whole-body microwave exposure, on serum Thyroid Stimulating Hormone (TSH), thyroxin (T-4), triiodothyronine (T-3), Cortisol, Growth Hormone (GH), Follicular Stimulating Hormone (FSH) and Estradiol concentrations, Wistar-albino female rats without treated and treated Vitamin C and Vitamin E were exposed to Microwave (MW) with a frequency of 9.450 MHz at the power density of 2.65 mW/cm(2) with corresponding specific absorption rate of 1.80 W/kg for 1h/day during 21 days. Vitamin C (150 mg/kg/day) and Vitamin E (150 mg/kg/day) were administrated during last seven exposure days to MW+Vit.C (n=8) and MW+Vit.E (n=8) groups respectively. Rectal temperatures were measured in all female rats. Serum levels of GH and FSH decreased (p<0.05, p<0.01 respectively) while estradiol levels increased in MW exposure group (p<0.05). But other hormones did not change in MW group (n=8). All hormone levels of rats treated with Vitamin C did not change (p>0.05). T-3 and T-4 hormones of exposed rats were found to be significant at MW +Vit.E group according to MW group (p<0.05). Rectal temperature differences were found to be significant in experimental groups according to sham group (n=8) (p<0.05). It was concluded that the changes of hormone concentrations under study was consistent with MW-induced thermal stimulation of Hypothalamic-Hypophysial-Adrenal (HHA) and Hypothalamic-Hypophysial-Thyroid (HHT) activity and Vitamin E might play role in changing T-3 and T-4 hormones.Öğe Hormone levels of people occupationally exposed to radiofrequencies.(Mbr Press Inc, 1999) Dasdag, S; Balci, K; Kaya, H; Çelik, MSThe present article intended to investigate some hormone levels of technicians in the radio-broadcasting, television (TV) and radio - link stations. The study was carried out on 43 technicians from 20 to 59 years age occupationally exposed to radiofrequency (RF) and microwave (MW) radiation. 20 unexposed and voluntary persons from 20 to 59 years age were accepted as a control group. We determined the levels of some hormones as triiodothyronine (T-3), tetraiodothyronine (T-4), thyroid stimulant hormone (TSH), free T-4, estradiol, dehydroepiondrosterone sulfate (DHEA), testosterone, cortisol and progesterone in the technicians under investigation. The hormone levels of exposure groups were statistically compared with the unexposed control group. T-3, T-4, estradiol, testosterone and progesterone levels of technicians in the radio-link and TV transmitter stations were found to be significant (p<0.05, p<0.001). T-3, T-4, TSH, estradiol and progesterone levels of technicians in the broadcasting station were also found to be significant (p<0.001). In conclusion some hormone levels of technicians under investigation were altered by RF/MW.Öğe The influence of the masticatory hypofunction on the craniofacial growth and development in rats(Mosby-Elsevier, 1997) Ulgen, M; Baran, S; Kaya, H; Karadede, IIn the present study, one masticatory hypofunction group and one normal function group were comprised of growing Wistar albino rats. The influence of the masticatory hypofunction on the growth and development of the craniofacial skeleton in rats was examined. The normal function group received the diet in the form of hard pellets, but the hypofunction group was fed powdered food, To avoid growth reduction because of nutritional deficiency, the animals were fed ad libitum, diet and water. At the end of the experimental period, the 90-day-old adult animals were killed and the direct anthropometric cranial, maxillary, and mandibular measurements were made on the skulls. The significant results can be summarized as follows: Total skull length, total anterior face height, lower anterior face height, ramus mandibula height, corpus mandibula height, premaxillary length, and maxillary width have been reduced but foramen incisivum width has been increased. This study showed that there is no significant effect of the masticatory hypofunction on the cranial growth and development in the growing rats, but that masticatory hypofunction affected the growth and development of the maxillofacial skeleton.Öğe Long-term glucose insulin potassium infusion improves systolic and diastolic function in patients with chronic ischaemic cardiomyopathy(E M H Swiss Medical Publishers Ltd, 2003) Alan, S; Ulgen, MS; Dedeoglu, I; Kaya, H; Toprak, NWe assessed the effects of glucose-insulin-potassium (GIK) using echocardiography, right ventricular catheterisation and myocardial scintigraphy with 99mTc sestamibi in stable patients with ischaemic cardiac dysfunction. Methods: Thirty male patients with stable coronary disease (SCD) and an ejection fraction (EF) <40% were studied for systolic and diastolic function. Glucose 30%, 300 insulin units and KCl 6 g/l were infused at 1 ml/kg per hour for 24 hours. Haemodynamic, echocardiographic and myocardial scintigraphy measurements were recorded at rest on completion of the GIK infusion. Results: A significant increase in EF was observed (32.1 +/- 7.8% and 43.3 +/- 11.6%, p <0.01). A significant prolongation was seen in the diastolic filling periods (365 +/- 52 msec and 428 +/- 70 msec, p <0.05). A significant decrease in pulmonary capillary wedge pressure was measured (22.2 +/- 5.3 and 17.1 +/- 4.3, p <0.01) and a significant decrease in stress score (S S) was observed (13 +/- 7 and 11 +/- 5, p >0.05). Conclusion: Our present work suggests that GIK infusion improves systolic and diastolic function in patients with SCD and an ejection fraction <40%. Further studies are needed to determine whether long-term GIK infusion could be useful for therapeutic strategies in patients with chronic ischaemic coronary diseases.Öğe Lymphoscintigraphy in a patient with non-HIV Kaposi sarcoma(Springer-Verlag, 2001) Balci, TA; Komek, H; Aytug, Z; Kaya, H; Kilinc, N[Abstract Not Available]Öğe Qantitative evaluation of sacroiliitis in the patients with brucellosis(Springer-Verlag, 2001) Kaya, H; Cobaner, A; Balci, TA; Çerçi, S[Abstract Not Available]Öğe SPECT evaluation of patients with amytrophic lateral sclerosis(Dr Dietrich Steinkopff Verlag, 2004) Kömek, H; Tamam, Y; Apak, I; Cerci, SS; Kaya, H[Abstract Not Available]
