Serum ADMA concentration – an independent factor determining FMD impairment in cardiac syndrome X

Mechanisms of decreased endogenous vascular reactivity in individuals with cardiac syndrome X (CSX) are not fully understood

Awareness of gastrointestinal tract malignancies among the population of Lublin province (Eastern Poland) - a cross-sectional study

Introduction. Currently, malignancies are the most severe medical problems worldwide. Numerous, already known risk factors in carcinogenesis could be potentially avoided. Some cancer risk factors have been recognized and have become the targets of primary prophylaxis. Objective. The aim of the study was to ascertain the state of knowledge about risk factors, primary prevention and early detection of malignancies of gastrointestinal tract (GIT) in the urban and rural population of the Lublin province in Eastern Poland. Materialas and method. The study was cross-sectional. The originally designed questionnaire was applied to the group of 1,352 patients, representatives of both the rural and urban environments of the Lublin province during random appointments with their general practitioner (GP). Results. The study showed low awareness of the issues connected with GIT malignancies within the studied group. The problem was particulary apparent in the rural population. Conclusions. In order to raise general awareness of cancer, different means should be applied in urban and rural populations. GPs and the media were found to have the leading rols in the promotion of primary prevention

Somatostatin Analogs for Pancreatic Neuroendocrine Tumors: Any Benefit When KI-67 is ≥10%?

Long-acting somatostatin analogs (SSAs) are the primary first-line treatment of well-differentiated advanced gastroenteropancreatic neuroendocrine tumors (GEP-NETs), but data about their efficacy in pancreatic NETs (panNETs) with Ki-67 ≥10% are still limited

Polyelectrolyte multilayer electrostatic gating of graphene field-effect transistors

We apply polyelectrolyte multilayer films by consecutive alternate adsorption of positively charged polyallylamine hydrochloride and negatively charged sodium polystyrene sulfonate to the surface of graphene field effect transistors. Oscillations in the Dirac voltage shift with alternating positive and negative layers clearly demonstrate the electrostatic gating effect in this simple model system. A simple electrostatic model accounts well for the sign and magnitude of the Dirac voltage shift. Using this system, we are able to create p-type or n-type graphene at will. This model serves as the basis for understanding the mechanism of charged polymer sensing using graphene devices, a potentially technologically important application of graphene in areas such as DNA sequencing, biomarker assays for cancer detection, and other protein sensing applications