33 research outputs found
Small Bowel Obstruction due to Mesodiverticular Band of Meckel's Diverticulum: A Case Report
Meckel's diverticulum is the most common congenital anomaly of the small intestine. Common complications related to a Meckel's diverticulum include haemorrhage, intestinal obstruction, and inflammation. Small bowel obstruction due to mesodiverticular band of Meckel's diverticulum is a rare complication. Herein, we report the diagnosis and management of a small bowel obstruction occurring due to mesodiverticular band of a Meckel's diverticulum
The relationship among acute-phase response proteins, cytokines and hormones in cachectic patients with colon cancer
BACKGRAUND: Acute-phase response proteins (APRP), cytokines and hormones have been claimed to be an independent prognostic factor of malignancies, however the basis for their association with prognosis remains unexplained. We suggest that in colon malignancies, as similar to pancreatic and lung cancers, changes in APRP are associated with angiogenesis. METHODS: C-reactive protein (CRP), albumin, IL-1α, IL-1β, IL-6, IL-8, IL-10, TNF-α, midkine, VEGF-A, VEGF-C, leptin, adiponectin, and ghrelin serum levels are studied in 126 colon cancer patients and 36 healthy subjects. RESULTS: We found statistically significant difference and correlations between two groups. We found significantly higher serum CRP, IL-1α, IL-1β, IL-6, IL-8, IL-10, TNF-α, VEGF-A, VEGF-C and leptin concentrations in patients relative to controls (p < 0.001). We found lower levels of the serum albumin, midkine, adiponectin and ghrelin in patients compared to control subjects (p < 0.001). CONCLUSIONS: Cachexia in patients with colon cancers is associated with changes in APRP, cytokines and hormone concentrations. These biomarkers and cachexia together have a direct relationship with accelerated angiogenesis. This may lead to a connection between the outcomes in malignancies and the biomarkers
EFFECTS OF PREOPERATIVE FINDINGS ON POSTOPERATIVE RESULTS IN PATIENTS UNDERGOING SURGERY FOR PRIMARY HYPERPARATHYROIDISM
Objective To investigate the success of imaging methods and the effect of preoperative findings on postoperative results in patients who underwent surgery for primary hyperparathyroidism (p-HPT). Material and Method In this study, the data of 50 consecutive patients who underwent p-HPT surgery at the General Surgery Clinic of Yuzuncu Yil University Faculty of Medicine between January 2008 and December 2010 were prospectively analyzed. During the study period, the patients’ demographic data, clinical findings, preoperative and postoperative laboratory results, findings of ultrasonography, scintigraphy, and computed tomography performed for localization in the preoperative period, and surgery and pathology reports were evaluated and recorded. The obtained data were statistically analyzed. Results Musculoskeletal pain was the most common (80%) reason for the patients’ presentation to the hospital. In the operated patients, the serum parathormone and calcium levels significantly decreased compared to the preoperative period (
Line of Sight(LoS) Probability Prediction for Satellite and HAPs Communication in Trabzon, Turkey
Applicability Comparison of Transmission Line Parameter Extraction Methods for Busbar Distribution Systems
Optimum reference distance based path loss exponent determination for vehicle-to-vehicle communication
A Proposed V2V Path Loss Model: Log-Ray
Vehicle-to-vehicle (V2V) communication that has prominent involvement in the design of innovative communication solutions for the intelligent transportation system. Therefore, to develop V2V channel models, the knowledge of the propagation channel on which comprehensive research efforts have been carried is vital. In this study, we focused on the analysis and modeling of path loss characteristics for V2V communications and proposed a log-ray path loss model with the motivation of overcoming remarkable fitting errors between the two-ray model and measured data where the path loss exponent corresponds to different from 2. First, channel measurements were performed at 5.9 GHz with commercially available DSRC OBU devices for five different scenarios in typical highway and suburban environments in Gümüşhane, Turkey. Then, the large-scale characteristics of different propagation scenarios were analyzed and the proposed log-ray model performance was compared with commonly used log-distance and two-ray path loss models qualitatively and quantitatively. On the other hand, analysis of small-scale modeling and shadowing were also conducted for all scenarios and presented in the results. The findings clearly demonstrate that the proposed log-ray path loss model fits the measured data with a smaller RMSE value (2.54 dB) than the results of the log-distance (3.07 dB) and two-ray (3.72 dB) path loss models in the literature. In other words, the proposed model has approximately 17.5% and 32% increase in fitting performance according to the log-distance and the two-ray path loss models, respectively. The study results will be helpful for better performance analysis and system design of V2V communication. © 2023, King Fahd University of Petroleum & Minerals
