Oxidative stress upregulates eNOS and myeloperoxidase (MPO) immunoexpression in hydrogen peroxide (H2O2) exposed HUVEC cells.

Calcareous plankton high resolution biostratigraphy from the Middle Miocene of the Mediterranean area.

HSP60 and HSP10 downregulation predicts bronchial epithelial carcingenesis.

Isolation and characterization of pluripotent cells from the subendocardial layer of human hearts from chronic heart failure.

Purpose: Several literature reports indicated the existence of pluripotent cells residing into the heart wall, even if in vivo heart regeneration is still a poorly comprised phenomenon. Post-infarct chronic heart failure is a pathology for which heart transplant remains a key option of clinical intervention. The amount of data collected in recent years forces researchers to better characterize the properties of adult stem cells, especially for those isolated from heart. Methods: We developed a new protocol to obtain, from the subendocardial layer of post-infarct hearts explanted from chronic heart failure patients undergoing heart transplantation, populations of mesenchymal stem cells. The …

Oxidative Stress Upregulates eNOS and Myeloperoxidase (MPO) immunoexpression in hydrogen peroxide (H202) exposed HUVEC cells

Increased nitrotyrosine immunoreactivity in bronchial biopsies from patients with severe COPD

FPGA Implementation of a Reconfigurable 802.11 Medium Access Control

THis work describes a full implementation of a reconfigurable IEEE 802.11 Medium Access Control (MAC) in FPGA using a System on Chip (SoC) architecture. The proposed implementation has been designed with a great structural flexibility, so to ease the protocol modification, and to support Quality of Service (QoS) function. Estensive tests has been carried out showing a full compliance to the 802.11 standard timing and algorithms.

A Software Defined Radio Platform Implementing a WiFi and ZigBee Receiver

A successful attempt to design and implement a multi-standard compliant Basebnd Processor is here presented. By exploiting the potential of FPGA's reconfigurability, the received signal from RF stage have been processed in order to properly decode frames of IEEE 802.11 (WiFi) and IEEE 802.15.4 (ZigBee) protocols. both falling within the ISM band (centered at 2.45GHz). The experimental implementation carried out is a practical demonstration of the Software Defined Radio concept.

Gruppo ESDP PAlermo: Attività di Ricerca

Role of TGF-b1 in type I collagen production in bronchial epithelial cells: effects on Smad7 inhibitory role?

Airway epithelial cells play an important role in inflammatory, apoptotic and remodelling process associate with fibrosis and COPD. Transforming growth factor 1 (TGF-b1) is involved in airways remodelling by Smads signalling pathway. We investigated the role of TGF-b1 on type I collagen production and Smads (Smad 2-3-4-and 7) expression in bronchial epithelial cells (16HBE). Cells were treated with 1ng/ml and 10ng/ml of TGF-b1 for 0, 3 and 24 hours. With low dose of TGF-b1 we observed no significant variation on Smad2 mRNA expression for both times but a significant increased of Smad7 mRNA expression at 3h (p=0.0043) and a significant reduction of Smad3, Smad4 and Smad7 mRNA expression at 2…

Aumentata adesione neutrofilica nelle biopsie bronchiali di pazienti con BPCO grave.

Increased neutrophil adhesion in bronchial biopsies from patients with severe COPD.

Implementazione di un MAC 802.11 su FPGA

Role of endothelial cell stress in the pathogenesis of chronic heart failure.

Endothelial cells are key modulators of diverse physiological processes, and their impaired function is a cause of numerous cardiovascular diseases. Under physiologic condition, the reactive oxygen and nitrogen mediators in endothelia lead to the signal propagation of the initial stimulus, by forming molecules with a longer half-life like hydrogen peroxide. Hydrogen peroxide is the focus of growing attention in endothelial biology, and consequently the enzymes involved in its generation and clearance are viewed as novel mediators of great importance. In particular, among peroxidases, myeloperoxidase is recognized as a key enzyme, capable of impairing intracellular NO reservoirs as well as p…