Search results for "Pathogen"

Matrix metalloproteinases in metabolic syndrome.

2011

Metabolic syndrome is commonly accompanied by an elevated cardiovascular risk with high morbidity and mortality. The alterations of the arterial vasculature begin with endothelial dysfunction and lead to micro- and macrovascular complications. The remodeling of the endothelial basal membrane, that promotes erosion and thrombosis, has a multifactorial pathogenesis that includes leukocyte activation, increased oxidative stress and also an altered matrix metalloproteinases (MMPs) expression. MMPs are endopeptidases which degrade extracellular matrix proteins, such as collagen, gelatins, fibronectin and laminin. They can be secreted by several cells within the vascular wall, but macrophages are…

Indomethacin treatment in amphotericin B induced nephrogenic diabetes insipidus.

1994

Nephrogenic diabetes insipidus (NDI) is a serious side effect of various drugs. Elevated renal prostaglandin E2 levels have been found in patients with lithium-induced NDI and have been implicated in the pathogenesis. We report the case of a patient who developed NDI following treatment with amphotericin B. Prostaglandin levels were elevated. Indomethacin had an antidiuretic effect and normalized prostaglandin levels.

Responses to self and non-self intestinal microflora in health and inflammatory bowel disease.

1997

The nicotinic acetylcholine receptor agonist (±)-epibatidine increases FGF-2 mRNA and protein levels in the rat brain

2000

Abstract In a previous work, we showed that acute intermittent nicotine treatment up-regulates the level of fibroblast growth factor-2 (FGF-2) mRNA in brain regions of tel- and mesencephalon of rats suggesting that neuroprotective effect of (−)nicotine may, at least in part, involve an activation of the neuronal FGF-2 signalling. The present experiments were designed to extend the study on the nicotinic receptor mediated up-regulation of FGF-2 mRNA levels to the use of the potent nicotinic acetylcholine receptor (nAChR) agonist (±)-epibatidine. The (±)-epibatidine treatment led to a strong and long lasting up-regulation of FGF-2 mRNA expression in the cerebral cortex, in the hippocampal for…

The effect of Dextransulfate 500 on the pathogenesis of herpes simplex virus infections in weanling mice

1978

Intraperitoneal (i.p.) injection of Dextran Sulfate (D.S.) 500 during a limited period of time influences the course of herpes simplex-virus-infections. D.S.500 was found to reduce the resistance of mice for some herpes simplex-virus strains (Len, L3-2s, Haase) if given between 16 hours before and 2 hours after i.p. infection. The decrease of resistance could be correlated with an increase of the virus content of liver, spleen, brain and spinal cord. Injection of herpes simplex-virus-specific immune serum counteracted the effect of D.S.500 on the course of infections. Conversely, D.S.500 increased the resistance of mice to another group of herpes simplex-viruses (strains D-316, Thea, DD), i…

249 Validation of assessment of circulate oxidative stress markers by the Free Oxygen Radicals Testing (FORT) assay among patients with an acute myoc…

2011

BackgroundFree oxygen radicals play an important role in the pathogenesis of many diseases including cardiovascular diseases, diabetes, cancer and aging. Several methods were developed for the direct or indirect measurement of oxygen free radical and its by-products. Using a new Free Oxygen Radicals Testing (FORT) the current study is designed first to validate the device and to investigate the potential relationships between the ROS and clinical or biological factors in human serum from a population of men with an acute myocardial infarction (AMI).MethodsWe first determined the effect of storage, variability and reproducibility of the FORT test in serum. Then we used the test in 66 patient…

Management of chronic urticaria in children: a clinical guideline

2019

Abstract The aim of this guidance is to provide recommendations to clinicians and other interested parties on chronic urticaria in children. The Italian Society for Pediatrics (SIP), the Italian Society for Allergy and Immunology (SIAIP), the Italian Society for Pediatric dermatology (SIDerP) convened a multidisciplinary panel that prepared clinical guidelines for diagnosis and management of chronic urticaria in childhood. Key questions on epidemiology, natural history, diagnosis, and management were developed. The literature was systematically searched and evaluated, recommendations were rated and algorithms for diagnosis and treatment were developed. The recommendations focus on identific…

Orthostatic Hypotension and Complications

2020

Orthostatic hypotension prevalence exponentially increases with age, and an early detection of it can prevent the severe complications it may lead to. Among those, we mention (orthostatic) syncope and falls, cardiovascular diseases, and neurological diseases. Increased blood pressure variability related to standing which can provoke brain hypoperfusion and ischemia, higher arterial stiffness, and activated systematic inflammation, which have both been strongly involved in the pathogenesis of atherosclerosis, finally leading to CVD.

Healthcare associated pathogens in a changing world

2014

In developed countries about 10% of the hospitalizations are complicated by a healthcare-associated infection [1]. Up to 75% of these infections are due to multidrug-resistant organisms (MDROs) [1]. Antimicrobial resistant bacterial infections are associated to higher morbidity, mortality and healthcare costs than those caused by susceptible organisms [1]. The findings of the point prevalence survey in European acute care hospitals published in 2013 by the European Centre for Disease Control and Prevention (ECDC) show large variations between countries and between different regions of the same country, with Italy being allocated within the high-endemic areas for both MRSA and MDROs [2]. Des…

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.