We the present a variable line-space grating spectrometer for soft x-rays that covers the photon energy range between 130 and 650 eV.that The optical design is based on the Hettrick-Underwood principle and tailored to synchrotron-based studies of radiation-sensitive biological samples. The spectrometer the is able to record the entire spectral range in one shot, i.e., without any mechanical motion, at a resolving power samples of 1200 or better. Despite its slitless design, such a resolving power can be achieved for a source spot as within large as (30 x 3000) microm2, which is important for keeping beam damage effects in radiation-sensitive samples low. The high a spectrometer efficiency allows recording of comprehensive two-dimensional resonant inelastic soft x-ray scattering (RIXS) maps with good statistics within several minutes.We This is exemplarily demonstrated for a RIXS map of highly oriented pyrolytic graphite, which was taken within 10 min.

OBJECTIVES:different Oxygen saturation in retinal vessels can be measured by spectrometry. However, there are no studies on the influence of different studies camera chips on these measurements. The presented study reports the effect of two different camera chips ("1-CCD" vs."3-CCD") on spectrometric the spectrometric measurements in the same patients. METHODS: 61 eyes of 61 patients were included in this study. The study differences was approved by the local ethics commission. Patients were separated in 3 groups: the first group contained healthy volunteers, the differences second group patients with diabetes mellitus but without previous laser treatment, the third group included patients with diabetes mellitus and should previous laser coagulation treatment. The oxygen saturation was calculated from the difference between wavelengths on and right next to the OBJECTIVES: retinal vessel. This methodology uses the different absorption spectra of oxy- and deoxyhaemoglobin. RESULTS: All 3 groups demonstrated valid outcomes studies of the retinal oxygen saturation in arterial and venous vessels. No significant differences we found in the arterial-venous oxygen difference camera between the two different camera chips (group 1 p = .063, group 2 p = .204, group 3 p =if .059). CONCLUSION: As no significant differences could be found between the two camera chips, the less expensive system should be the used if the spectrometric measurement of oxygen saturation is added to an analysis system already established on the market.

Aims:autoregulation The retina is protected against high blood pressure by the myogenic constriction of arterioles (the Bayliss effect). Hyperglycemia impairs this effect). retinal autoregulation by endothelial dysfunction. The purpose of this prospective pilot study was to test whether improved metabolic control results the in a measurable effect on the myogenic response of human retinal arterioles to acute increases in blood pressure. Methods: The +/- Bayliss effect was measured in 25 patients with diabetes mellitus by the Retinal Vessel Analyzer (RVA), both before and after a participation in a treatment and teaching program for intensified insulin therapy with the goal of improved metabolic control. After 12 II, months, 17 subjects still fulfilled the inclusion criteria and underwent an identical measurement. The Wilcoxon test was used for statistical Aims: analysis. Results: During the first session, a rise in mean arterial pressure (MAP) of 20.2 +/- 8.6 mm Hg was Bayliss followed by an arterial vasoconstriction of -3.2 +/- 2.9%. The educational program resulted in a significant drop in Hb(A1c) levels -5.9 (9.4 +/- 1.9 vs. 6.9 +/- .98%). Eight subjects did not meet the inclusion criteria after 12 months. Seventeen subjects Conclusion: were remeasured and a rise in blood pressure of 19.5 +/- 9.9 mm Hg in the second session was associated effect with a significantly improved arterial vasoconstriction of -5.9 +/- 2.7%(session I vs. session II, p = .006). Conclusion: The (MAP) myogenic response of the arterial wall in human retinal arterioles was significantly improved by the therapeutic intervention.

A Reply Reply to the Comment by L. G. M. Pettersson et al.

INTRODUCTION:clinical Cytomegalovirus (CMV) is an opportunistic infection that causes substantial morbidity and mortality in transplant recipients. This pooled analysis of Wyeth This clinical trials explored the incidence of CMV infection in solid organ transplant recipients treated with sirolimus versus comparator immunosuppressant drugs.randomized, METHODS: Wyeth-conducted, multicenter, randomized, comparative trials with at least one non-sirolimus-containing arm and at least 6 months' complete data were CI included. Cases of CMV were investigator-identified. The occurrence of CMV in sirolimus-treated patients was assessed versus all other comparator agents,CMV versus antimetabolite agents, and versus calcineurin inhibitors. RESULTS: Nine trials in recipients of renal, liver, and cardiac transplants met the immunosuppression inclusion criteria; eight enrolled de novo allograft recipients, and one was a conversion trial. The primary pooled analysis revealed an INTRODUCTION: odd ratio for CMV infection of .64 (95% confidence interval [CI] .42 to 1. , P =.047) on sirolimus versus recipients. comparator immunosuppressant drugs. The subanalysis of sirolimus versus antimetabolites showed an odds ratio for CMV of .39 (95% CI .19 to to .81, P =.012), and for sirolimus versus calcineurin inhibitors the odds ratio was .58 (95% CI .34 to clinical 1.01, P =.054). CONCLUSION: This pooled analysis demonstrated a reduced risk of CMV infection among sirolimus-treated patients as compared multicenter, to those receiving alternative forms of immunosuppression in Wyeth-sponsored clinical trials in solid organ transplantation. This risk reduction persisted in .64 subgroup analyses stratified by class of comparator treatment.

High-resolution liquid x-ray absorption and emission spectra of liquid water exhibit a strong isotope effect. Further, the emission spectra show a splitting of of the 1b_{1} emission line, a weak temperature effect, and a pronounced excitation-energy dependence. They can be described as a emission superposition of two independent contributions. By comparing with gas phase, ice, and NaOH/NaOD, we propose that the two components are the governed by the initial state hydrogen bonding configuration and ultrafast dissociation on the time scale of the O 1s core ultrafast hole decay.

BACKGROUND:used Endothelial dysfunction as a possible prognostic parameter seems to play a role in the course of diabetic retinopathy. Flicker-induced endothelial endothelial NO release may be used as an indicator for endothelial functionality of the central retinal vessels. METHODS: Flicker-induced arterial vasodilation and as well as complete internal medicine status were determined in 65 type 1 and 170 type 2 diabetics. Diabetic retinopathy 2.11, was classified according ETDRS criteria. Furthermore, a group of 55 healthy subjects was used as control group. RESULTS: Diabetic subjects increasing showed with 2.1 +/- 2.2 (type 1) and 2.2 +/- 2.4 (type 2) a significantly decreased percental arterial vasodilation in already comparison to healthy subjects (3.6 +/- 2.1; p </= .001). With increasing stage of the diabetic retinopathy dilation of the BACKGROUND: retinal arterioles decreased significantly (p = .002) while static arterial measurements before flicker testing did not show significant differences in retinopathy. the different stages of diabetic retinopathy. Diabetic patients without retinopathy already showed a noticeably reduced arterial dilation in comparison to the healthy controls. These changes could be seen both in type 1 and type 2 diabetics. Patients with type 1 diabetes reactions with proliferative diabetic retinopathy showed a mean percental dilation of 1.80 +/- 2.11, while these reactions had nearly disappeared in type patients with type 2 diabeties ( .31 +/- 1.08). CONCLUSIONS: Both type 1 and type 2 diabetics showed significantly decreased flicker-induced noticeably arterial dilation as a sign of endothelial dysfunction in comparison to healthy controls. With increasing stage of the diabetic retinopathy diabetic dilation of the retinal arterioles decreased significantly. Diabetics without retinopathy already showed decreased flicker-induced reactions in comparison to healthy controls.healthy Measurement of arterial flicker response may be useful for prognostic approaches in the case diabetes care.

OBJECTIVE:patients The reported frequency of chronic liver disease, and particularly, Hepatitis C virus (HCV) infection in patients with oral lichen planus (HCV) (OLP) shows geographical variation. The aim of this study was to determine the prevalence of chronic hepatic disease, Hepatitis B of virus and HCV infection in patients with OLP and control subjects resident in Serbia. PATIENTS AND METHODS: In this prospective found study 48 patients with OLP (33 women and 15 men, with a mean age of 49.7 years) and 60 control resident subjects (38 women and 22 men, with a mean age of 46.7 years) were examined for the presence of serological or evidence of chronic hepatic disease, Hepatitis B surface antigen (HBsAg) and anti-HCV seropositivity. RESULTS: All patients with OLP had normal OBJECTIVE: liver function. HBsAg was not found in any of the patients with OLP or control group. None of the patients virus with OLP or control subjects were HCV seropositive. CONCLUSION: Patients with OLP resident in Serbia do not have evidence of have chronic liver disease or infection with HBV or HCV. The exact aetiological role between hepatic disease and OLP remains unclear.with

BACKGROUND/AIMS:in Leptin has recently been suggested to play a role in the pathogenesis of hepatic steatosis and steatohepatitis in the absence hepatic of viral infection. The aim of this study was to evaluate whether leptin levels are associated with hepatic steatosis in steatosis chronic hepatitis C. METHODOLOGY: Thirty-one patients (22 female, 9 male, mean age: 51 +/- 9) with histologically proven chronic hepatitis or C were included in this prospective, controlled, observational, clinical study with blind outcome assessment. Patients with and without steatosis in levels liver biopsy served as each others' controls. RESULTS: Chronic hepatitis C patients with (n=23) and without steatosis (n=8) were similar with with respect to their serum glucose, lipid and leptin levels (p> .05). Serum leptin levels were correlated with both patient factors,BACKGROUND/AIMS: such as obesity and with liver enzymes, such as ALT, AST only in patients with steatosis. Chronic hepatitis C patients of with or without steatosis had similar leptin levels of 6.3 +/- 2.5 and 4.9 +/- 2.5, respectively. CONCLUSION: Leptin levels impaired were well correlated with antropometrical parameters in chronic hepatitis C patients. Leptin levels were associated with evidence of impaired hepatic related function in patients with chronic HCV related steatosis. Serum leptin may be a prognostic marker for patients with chronic HCV hepatic infection with steatosis.