Search results for "ToP"
showing 10 items of 17685 documents
Esthesioneuroblastoma presenting with epifora in a young child
1997
Esthesioneuroblastoma (ENB) is an uncommon tumor believed to arise from the olfactory epithelium. 1 This neoplasm has rarely been reported in children, with only 12 cases reported to date among patients younger than 10 years. 2 The usual initial symptom in children, as in older patients, is nasal obstruction or epistaxis 3 ; consequently, the tumor is often first seen by an otorhinolaryngologist. We report a case of ENB in a young child in whom the initial symptom was epiphora; to our knowledge, this initial symptom is previously unreported, and ENB must now be considered in the differential diagnosis of epiphora in childhood. Report of a Case. A white 6-year-old male child was seen on Janu…
Definition of the Rectum An International, Expert-based Delphi Consensus
2019
Mini: A radiological, anatomic distinction between the rectum and sigmoid colon was agreed by consensus of international experts in rectal cancer using the Delphi Technique. Use of this landmark, “the sigmoid take-off,” may harmonize efforts in research and clinical practice to improve patient outcomes. Background: The wide global variation in the definition of the rectum has led to significant inconsistencies in trial recruitment, clinical management, and outcomes. Surgical technique and use of preoperative treatment for a cancer of the rectum and sigmoid colon are radically different and dependent on the local definitions employed by the clinical team. A consensus definition of the rectum…
The "Tokyo" consensus on propeller flaps
2011
Background: Overthepastfewyears,theuseofpropellerflaps,whichbasetheir blood supply on subcutaneous tissue or isolated perforators, has become in- creasingly popular. Because no consensus has yet been reached on terminology and nomenclature of the propeller flap, different and confusing uses of the term can be found in the literature. Methods: Inthisarticle,theauthorsreporttheconsensusonthedefinitionand classification of propeller flaps reached by the authors that gathered at the First Tokyo Meeting on Perforator and Propeller Flaps in June of 2009. Some peculiar aspects of the surgical technique are discussed. Results: A propeller flap can be defined as an “island flap that reaches the reci…
The Mitochondrial Antioxidant SS-31 Modulates Oxidative Stress, Endoplasmic Reticulum Stress, and Autophagy in Type 2 Diabetes
2019
Mitochondrial dysfunction has been shown to play a central role in the pathophysiology of type 2 diabetes (T2D), and mitochondria-targeted agents such as SS-31 are emerging as a promising strategy for its treatment. We aimed to study the effects of SS-31 on leukocytes from T2D patients by evaluating oxidative stress, endoplasmic reticulum (ER) stress and autophagy. Sixty-one T2D patients and 53 controls were included. Anthropometric and analytical measurements were performed. We also assessed reactive oxygen species (ROS) production, calcium content, the expression of ER stress markers GRP78, CHOP, P-eIF2&alpha
Investigational agents for Crohn's disease.
2010
IMPORTANCE OF THE FIELD: Increased understanding of the biological mechanisms of Crohn's disease has opened the door to a large number of new molecules; some of these are approved for clinical use, while others remain under evaluation. In this review, we examine the clinical efficacy of all the new drugs that have been evaluated in controlled trials in the last 12 years. AREAS COVERED IN THIS REVIEW: Anti-TNF therapy has been reviewed briefly, given the many comprehensive reviews on this topic; attention is focused mainly on the other biological therapies. In assessing the clinical efficacy of these molecules, we consider only the remission rate, as this is considered the most meaningful en…
In vivo angiotensin I-converting enzyme inhibition by long-term intake of antihypertensive lactoferrin hydrolysate in spontaneously hypertensive rats
2013
Abstract We evaluated the effect of the long-term intake of a bovine lactoferrin hydrolysate enriched in low molecular weight peptides (LFH in vivo mechanism of action. Male spontaneously hypertensive rats received tap water (negative control), captopril (positive control, 76 mg/kg/day), LFH in vivo mechanism for the antihypertensive effect of long-term oral administration of LFH
Receptor Recognition Sites of Cytokines Are Organized as Exchangeable Modules
1999
Interleukin-6 (IL-6) and ciliary neurotrophic factor (CNTF) are "4-helical bundle" cytokines of the IL-6 type family of neuropoietic and hematopoietic cytokines. IL-6 signals by induction of a gp130 homodimer (e.g. IL-6), whereas CNTF and leukemia inhibitory factor (LIF) signal via a heterodimer of gp130 and LIF receptor (LIFR). Despite binding to the same receptor component (gp130) and a similar protein structure, IL-6 and CNTF share only 6% sequence identity. Using molecular modeling we defined a putative LIFR binding epitope on CNTF that consists of three distinct regions (C-terminal A-helix/N-terminal AB loop, BC loop, C-terminal CD-loop/N-terminal D-helix). A corresponding gp130-bindin…
Long-term efficacy of omalizumab (OMA) for patients with severe allergic asthma (SAA). Clinical assessment and relationship to serum IgE concentratio…
2015
Background: OMA is an effective treatment option in SAA. However, little data are available on the long-term-efficacy oft the drug. Objective: To determine the long-term efficacy of OMA in respect to clinical parameters and IgE serum levels. Methods: This was a retrospective, open-label, uncontrolled, multi-center observational study according to the definition of non-interventional studies. 22 non-smoking patients (10 m, 12 f; mean age 47,9 yrs) with SAA were enrolled. Pat were treated with OMA up to for 4 years and total serum IgE levels were assessed at initiation of therapy, after 2-6 ms and 3-5 yrs. Data were recorded on standardized CRFs by the treating physician. Results: The average…
Patterns of changes of anti‐ADAMTS13 after plasma exchange
2006
An enzyme-linked immunosorbent assay (ELISA) has recently been developed to detect antibodies against the von Willebrand factor-cleaving protease ADAMTS13 in patients with thrombotic thrombocytopenic purpura (TTP). The ELISA is based on incubation of plasma with immobilized recombinant ADAMTS13 followed by visualization of IgG and IgM antibodies by means of secondary enzyme-labeled antibodies [1]. In a recent study, anti-ADAMTS13 IgG antibodies were detected in most patients with TTP (97%) characterized by severe ADAMTS13 deficiency (< 10% of normal) [1]. The ELISA was more sensitive than the standard inhibitor assay based upon ADAMTS13 neutralizing activity, which gave positive results in …
On the hemagglutinating and hemolytic activity of measles virus variants.
1967
The hemagglutinating (HA) and hemolytic (HL) activity of two measles virus variants, differing with regard to type of CPE and other characteristics, have been investigated.