THE EFFECT OF PUBLIC SECTOR INVESTMENTS ON SOCIOECONOMIC DEVELOPMENT IN TURKEY

In this paper, we analyze the effects of public investments done between years 1999 and 2002 in 76 provinces (il) of Turkey on the socioeconomic development of those provinces during the period of 1996-2003. We consider public investments in the areas of agriculture, health, education, transportation and telecommunication and others. Our objective is to find which area of public investments has provided the largest socioeconomic improvement. Given the scarce resources and a history of large deficits of the Turkish government’s budget, it is indispensable for the policymaker to know which investment area yields the “largest” improvement per lira invested. In the analysis, we use ordinary least squares and nonparametric estimation techniques. The results obtained from both techniques are robust and point to the same direction: they show that public investments in education area have a significantly positive effect on the socioeconomic improvement of a province per lira invested. Investments in other areas appear to be insignificant in terms of development. The results emphasize the importance of the policymaker’s choice of which area to invest

Real-time elastography for differentiation of breast lesions

Backroung: To investigate the diagnostic performance of the elastography-based strain index ratio in the differential diagnosis of malignant and benign breast lesions. Material/Methods: Seventy-nine breast masses that were classified as BI-RADS category 3, 4, and 5 on B-mode ultrasonography (US) were further prospectively evaluated by real-time sonoelastography (RTE). To obtain an optimal cut-off value of the strain ratio for differentiating between malignant and benign breast lesions, RTE findings were compared with histopathology of core needle biopsy samples or with ultrasound follow-up data of the analyzed masses. Results: Seventy-nine breast lesions [BI-RADS category 3 (n=15), BI-RADS category 4 (n=34), and BI-RADS category 5 (n=30)] were classified as malignant (n=36) or benign (n=43). The mean strain index value was 6.59±3.44 (range 0.6-14) for malignant lesions and 2.79±2.16 (range 0.6-8.7) for benign lesions, respectively (p<0.05). As regards the detection of malignant lesions, US was characterized by sensitivity and specificity of 100% (CI 95%; 88-100) and 90% (CI 95%; 76-97), respectively. When an optimal value of the strain ratio (4.25) was obtained by ROC curve analysis, the sensitivity and specificity for diagnosing malignant lesions were 86% (CI 95%; 70-95) and 76% (CI 95%; 60-87), respectively. Conclusions: RTE can play an important role in the differentiation between malignant and benign breast masses, but it should be used in conjunction with ultrasonography

The Healing Effects of Autologous Mucosal Grafts in Experimentally Injured Rabbit Maxillary Sinuses

Objectives Healing processes of the nose and paranasal sinuses are quite complex, and poorly understood. In this study, we aimed to compare the effect of mucosal autologous grafts on the degenerated rabbit maxillary sinus mucosa with spontaneous wound healing. It is hypothesized that mucosal grafts will enhance ciliogenesis and improve the morphology of regenerated cilia. Methods Ten female New Zealand rabbits were included in the study. They underwent external maxillary sinus surgery through a transcutaneous approach. A total of 20 maxillary sinuses were randomly divided into 2 groups: ‘spontaneous healing group’ and ‘autologous graft group.’ The animals were sacrificed at the 14th day after the surgery. Scanning electron microscope (SEM), and light microscope were used for the evaluation. Results Cellular composition of the graft group is better than the spontaneous healing group. The graft group had larger areas covered with ciliary epithelium than the spontaneous healing group, and the mean length of the cilias were also longer. Additionally, there were wider cilia with abnormal morphology areas in the spontaneous healing group. Conclusion In our opinion, covering of the denuded areas with a graft improves re-epithelization, and may prevent the early complications after sinus surgeries

Corneal topographic changes in premenopausal and postmenopausal women

<p>Abstract</p> <p>Background</p> <p>To asses the effect of menopause on the corneal curvature changes using corneal computerized videokeratography (CVK) in premenopausal and postmenopausal healthy women.</p> <p>Methods</p> <p>Thirty-six postmenopausal women with mean ages of 49.2 (range 39 to 57) were enrolled in this randomized, prospective study, comparing with 26 healthy controls with mean ages of 38.5 +/- 4.9 (range 32 to 49). Subjects were determined to be postmenopausal, by the Gynecology and Obstetrics Department, based on blood Follicular Stimulating Hormone (FSH), Luteinizing Hormone (LH), Estradiol, Progesterone levels and clinical complaints. Complete ophthalmic examination and CVK using Haag-Streit System was performed in both premenopausal and postmenopausal women.</p> <p>Results</p> <p>Mean horizontal curvature and vertical curvature of central corneal power in premenopausal women were 43.5 +/- 1.25 Diopter (D), and 44.1 +/- 1.53 D. Mean horizontal curvature and vertical curvature of central corneal power in postmenopausal women were 43.9 +/- 1.4 D, and 44.6 +/- 1.3 D. The mean keratometric astigmatisms of premenopausal and postmenopausal women were 0.81 +/- 0.57 D (4–179 degrees), 0.74 degrees +/- 0.5 D (1–180 degrees) respectively. No significant corneal curvature changes were detected between premenopausal and postmenopausal groups (P > 0.05). On the other hand, we only found negative but significant correlation between horizontal corneal curvature and estrogen level of postmenopausal women (r = -0.346, p = 0.038).</p> <p>Conclusion</p> <p>Menopause is physiologic process and may also affect corneal topographic changes. In postmenopausal women, corneal steeping was observed minimally compared to premenopausal women. The results suggest that changes in estrogen level of women with menopause are associated with slightly alteration of horizontal curvature of cornea.</p

Effects of Rituximab on Atherosclerotic Biomarkers in Kidney Transplant Recipients

Introduction. Cardiovascular disease is the leading cause of mortality in kidney transplantrecipients. Rituximab is widely used in kidney transplantation for a variety of situations,and rituximab may inhibit some cytokines and antibodies that may play an active role in theatherosclerotic process. The aim of the study was to evaluate the efficacy of rituximab onatherosclerosis biomarkers in kidney transplant recipients.Methods. All patients, 18 years of age and older, who underwent kidney transplantationand received at least 1 dose of 375 mg/m2 rituximab were considered for participation inthis study. The primary study endpoint was the development of cardiovascular diseasesafter rituximab therapy. The secondary endpoint was the onset of cytomegalovirus (CMV)disease or biopsy-confirmed BK virus nephropathy. In addition, comparison ofatherosclerosis biomarkers was performed between study and control groups.Results. There were no cardiovascular events observed during follow up. Only 8 patientsin the study group suffered from CMV disease during follow up. Serum interleukin 10levels were significantly higher in the rituximab group compared with the control group,although antieoxidized low-density lipoprotein levels were lower in the rituximab groupcompared with the control group, though this did not achieve statistical significance.Discussion. Rituximab treatment may increase the risk of CMV reactivation anddecrease lymphocyte counts and interleukin 10 levels; however, significant decreases in allatherosclerotic-related biomarkers have not been shown in our study