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CGRP blockers in migraine therapy: where do they act?

Calcitonin gene-related peptide (CGRP) is expressed throughout the CNS and peripheral nervous system, consistent with control of vasodilatation, nociception, motor function, secretion and olfaction. alphaCGRP is prominently localized in primary afferent C and Adelta fibres of spinal and trigeminal ganglia. Activation of the trigeminal nerve results in antidromic release of CGRP, acting through a C

Clonal chromosomal abnormalities in congenital bile duct dilatation (Caroli's disease)

BACKGROUND: Caroli's disease is a rare congenital disorder characterised by cystic dilatation of the intrahepatic bile ducts and an increased risk of cholangiocellular carcinoma. The cause is unknown, but occasional familial clustering suggests that some cases are inherited, in particular when occurring in association with polycystic kidney disease and germline PKD1 gene mutations. To date, no gen

Conserved Patterns of Microbial Immune Escape: Pathogenic Microbes of Diverse Origin Target the Human Terminal Complement Inhibitor Vitronectin via a Single Common Motif.

Pathogenicity of many microbes relies on their capacity to resist innate immunity, and to survive and persist in an immunocompetent human host microbes have developed highly efficient and sophisticated complement evasion strategies. Here we show that different human pathogens including Gram-negative and Gram-positive bacteria, as well as the fungal pathogen Candida albicans, acquire the human term

Hospitalisation of and mortality from bleeding peptic ulcer in Sweden: a nationwide time-trend analysis.

Aliment Pharmacol Ther 2011; 33: 578-584 SUMMARY: Background Time-trend analyses of incidence and mortality in bleeding peptic ulcer show divergent results. Aim To conduct a detailed national analysis of hospitalisation of and mortality from bleeding peptic ulcer in Sweden. Method Data from all hospitalisations at departments with primary responsibility for patients with bleeding ulcer in Sweden,

In vitro biomechanical modulation-retinal detachment in a box.

To illustrate the importance of biomechanical impact on tissue health within the central nervous system (CNS), we herein describe an in vitro model of rhegmatogenous retinal detachment (RRD) in which disruption and restoration of physical tissue support can be studied in isolation.

Product design to reduce restricted substances : The experience of brominated flame retardants in vehicle design

Firms proactive in environmental work and those pressured by their product chain have a list of restricted substances that they do not want their products to contain. But as environmental management issues progress, what are companies doing to reduce the use of these restricted substances? Brominated flame retardants used in cars, trucks and buses to improve fire safety are a rising public concern

A 0.2V 0.44 uW 20 kHz Analog to Digital Sigma-Delta Modulator with 57 fJ/conversion FoM

This paper presents a 90 nm CMOS A/D modulator operating with a supply voltage of 0.2 V, well below the threshold voltage of the transistors. The modulator is an open-loop first-order architecture based on a frequency-modulated intermediate signal, generated in a ring voltage-controlled oscillator. The linearity of the modulator is greatly improved by the adoption of a so-called soft-rail in the o

New Method for Calculating the One-Particle Green's Function with Application to the Electron-Gas Problem

A set of successively more accurate self-consistent equations for the one-electron Green's function have been derived. They correspond to an expansion in a screened potential rather than the bare Coulomb potential. The first equation is adequate for many purposes. Each equation follows from the demand that a corresponding expression for the total energy be stationary with respect to variations in

Differential Optical-absorption Spectroscopy (doas) System For Urban Atmospheric-pollution Monitoring

We describe a fully computer-controlled differential optical absorption spectroscopy system for atmospheric air pollution monitoring. A receiving optical telescope can sequentially tune in to light beams from a number of distant high-pressure Xe lamp light sources to cover the area of a medium-sized city. A beam-finding servosystem and automatic gain control permit unattended long-time monitoring.