Background: The main goal of this study is to determine the relationship between opium dependency and frequency of urolithiasis renal colics. Methods: In a cross sectional study we compared opium dependency in urolithiasis patients (case group) with non-urolithiasis patients (control group) and assessed urolithiasis related renal colics as risk factor to opium dependency prevalence. Dependency ...

PROPOFOL is a short-acting, intravenous agent used extensively in anesthesia and intensive care medicine to provide dose-dependent sedation and hypnosis. It is characterized by a short onset, a short duration of action, low toxicity, ability to control sedation, and ease of administration. Thus, it quickly found general acceptance after its introduction into the market in the mid 1980s. The abu...

background: pet/ct imaging using [18f]-fdg is utilized in clinical oncology for tumor detecting, staging and responding to therapy procedures. essential consideration must be taken for radiation staff due to high gamma radiation in pet/ct and cyclotron center. the aim of this study was to assess the staff exposure regarding whole body and organ dose and to evaluate environment dose in pet/ct an...

background: we have validated the monitor unit calculations from a commercially available treatment planning system (tps) for three intensity modulated radiotherapy (imrt) planning techniques for tangential breast irradiation by using ionization chamber measurements. materials and methods: treatment plans were generated for forty-two breast patients by a forward planned field in field technique...

Naltrexone is an opiate m-receptor antagonist approved for treatment of alcohol dependency at a recommended dose of 50 mg/day. The mechanism of action is proposed to be mediated by a normalization of endogenous endorphin levels. Despite few and inconclusive studies (casuistic or open-label), a naltrexone dose of 3–5 mg/day (low-dose naltrexone, LDN) has been suggested to ameliorate a wide range...

The radiation damage rates to crystals of 15 model macromolecular structures were studied using an automated radiation sensitivity characterization procedure. The diffracted intensity variation with dose is described by a two-parameter model. This model includes a strong resolution-independent decay specific to room-temperature measurements along with a linear increase in overall Debye-Waller f...

BACKGROUND The mechanisms by which partial liquid ventilation (PLV) can improve gas exchange in acute lung injury are still unclear. Therefore, we examined the time- and dose-dependency of the improvements in arterial oxygen tension (PaO2) due to PLV in eight pigs with experimental lung injury, in order to discriminate increases due to oxygen dissolved in perfluorocarbon before its intrapulmona...