Riccardo Ricci

Learn More
UNLABELLED The role played by the gut in nonalcoholic fatty liver disease (NAFLD) is still a matter of debate, although animal and human studies suggest that gut-derived endotoxin may be important. We investigated intestinal permeability in patients with NAFLD and evaluated the correlations between this phenomenon and the stage of the disease, the integrity(More)
The relationship between hantaviruses and their reservoir hosts is not well understood. We successfully passaged a mouse-adapted strain of Sin Nombre virus from deer mice (Peromyscus maniculatus) by i.m. inoculation of 4- to 6-wk-old deer mouse pups. After inoculation with 5 ID(50), antibodies to the nucleocapsid (N) antigen first became detectable at 14 d(More)
PURPOSE To examine the relationship between tumor regression grade (TRG) and outcomes in patients with rectal cancer treated with preoperative therapy. METHODS AND MATERIALS Specimens from 144 patients with cT3,4 rectal cancer who had received preoperative radiation +/- chemotherapy and had a minimum follow-up of 3 years were retrospectively reviewed.(More)
BACKGROUND AND STUDY AIMS The overall diagnostic accuracy of endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) for subepithelial lesions (SELs) is suboptimal. The aim of this study was to evaluate the diagnostic accuracy, defined as the proportion of correct diagnoses, obtained using the EUS-guided fine-needle tissue acquisition (FNTA) sampling(More)
In this paper we study correlation functions of circular Wilson loops in higher dimensional representations with chiral primary operators of N = 4 super Yang-Mills theory. This is done using the recently established relation between higher rank Wilson loops in gauge theory and D-branes with electric fluxes in supergravity. We verify our results with a(More)
BACKGROUND Preoperative determination of Ki-67 expression, an important prognostic factor for grading nonfunctioning pancreatic endocrine tumors (NF-PETs), remains an important clinical challenge. OBJECTIVE To prospectively evaluate the feasibility, yield, and clinical impact of EUS-guided fine-needle tissue acquisition (EUS-FNTA) with a large-gauge(More)
UNLABELLED Because local anesthetic continuous wound instillation has not been evaluated after spine fusion surgery, we designed this study to determine whether this technique could enhance analgesia and improve patient outcome after posterior lumbar arthrodesis. Thirty-eight patients undergoing spine stabilization were randomly divided into two groups. The(More)
The deer mouse (Peromyscus maniculatus) is a natural reservoir for several human pathogens, but little is known about the mechanisms by which such pathogens are maintained in nature. As a first step toward developing a colony of deer mice that were permissive for infection with Sin Nombre (SN) hantavirus, we collected 68 wild P. maniculatus rufinus from(More)
This paper studies in great detail a family of supersymmetric Wilson loop operators in N = 4 supersymmetric Yang-Mills theory we have recently found. For a generic curve on an S3 in space-time the loops preserve two supercharges but we will also study special cases which preserve 4, 8 and 16 supercharges. For certain loops we find the string theory dual(More)
Recently it has been proposed that Wilson loops in high-dimensional representations in N = 4 supersymmetric Yang-Mills theory (or multiply wrapped loops) are described by D-branes in AdS5 × S5, rather than by fundamental strings. Thus far explicit D3-brane solutions have been only found in the case of the half-BPS circle or line. Here we present D3-brane(More)