Introduction: The study aimed to evaluate the efficacy of a novel multicomponent substance against combined exposure to the mycotoxins zearalenone (ZEN) and ochratoxin A (OTA) in weaned piglets.
Methods: In total, 60 piglets at the age of 28 days were equally allocated to four experimental groups (A-D), consisting of eight female and seven male piglets each (15 animals per group, for a total trial duration of 42 days). Animals from group A received typical weaner feed without mycotoxins or the test product [multicomponent mycotoxin detoxifying agent (MMDA)].
Metabolomics is becoming increasingly popular in livestock research, but no single analytical method can cover the entire metabolome. As such, we compared similar and complementary chromatographic methods with respect to analyte coverage and chromatographic properties of mammalian metabolites. We investigated 354 biologically relevant primary metabolites from 19 compound classes including amino acids, bile acids, biogenic amines, carboxylic acids, lipids, nucleotides and sugars.
View Article and Find Full Text PDFis a mobile application which we developed for children and adolescents suffering type 1 diabetes mellitus (T1DM) for calculation of the appropriate insulin bolus dose by importing in the equation carbohydrates, lipids, glucose levels, and personalized parameters. Aim of this study is to evaluate the efficacy of this application on patients' glycemic control and satisfaction. Eighty children and adolescents (aged 13.
View Article and Find Full Text PDFInterdiscip Perspect Infect Dis
December 2018
Introduction: Brucellosis is a zoonosis with high occupational risk. However, seroprevalence of antibodies among occupational groups is not known, since studies in endemic countries are rare.
Methods: A cross-sectional seroprevalence study was conducted among livestock farmers in an endemic region in Greece.
Bacterial genome sequences consistently contain many more biosynthetic gene clusters encoding specialized metabolites than predicted by the compounds discovered from the respective strains. One hypothesis invoked to explain the cryptic nature of these gene clusters is that standard laboratory conditions do not provide the environmental cues needed to trigger gene expression. A potential source of such cues is other members of the bacterial community, which are logical targets for competitive interactions.
View Article and Find Full Text PDFIntroduction: Natural products from culture collections have enormous impact in advancing discovery programs for metabolites of biotechnological importance. These discovery efforts rely on the metabolomic characterization of strain collections.
Objective: Many emerging approaches compare metabolomic profiles of such collections, but few enable the analysis and prioritization of thousands of samples from diverse organisms while delivering chemistry specific read outs.
Plants play an essential part in global carbon fixing through photosynthesis and are the primary food and energy source for humans. Understanding them thoroughly is therefore of highest interest for humanity. Advances in DNA and RNA sequencing and in protein and metabolite analysis allow the systematic description of plant composition at the molecular level.
View Article and Find Full Text PDFIn order to expedite the rapid and efficient discovery and isolation of novel specialized metabolites, while minimizing the waste of resources on rediscovery of known compounds, it is crucial to develop efficient approaches for strain prioritization, rapid dereplication, and the assessment of favored cultivation and extraction conditions. Herein we interrogated bacterial strains by systematically evaluating cultivation and extraction parameters with LC-MS/MS analysis and subsequent dereplication through the Global Natural Product Social Molecular Networking (GNPS) platform. The developed method is fast, requiring minimal time and sample material, and is compatible with high-throughput extract analysis, thereby streamlining strain prioritization and evaluation of culturing parameters.
View Article and Find Full Text PDFCovering: up to 2016Humans are walking microbial ecosystems, each harboring a complex microbiome with the genetic potential to produce a vast array of natural products. Recent sequencing data suggest that our microbial inhabitants are critical for maintaining overall health. Shifts in microbial communities have been correlated to a number of diseases including infections, inflammation, cancer, and neurological disorders.
View Article and Find Full Text PDFThe cars we drive, the homes we live in, the restaurants we visit, and the laboratories and offices we work in are all a part of the modern human habitat. Remarkably, little is known about the diversity of chemicals present in these environments and to what degree molecules from our bodies influence the built environment that surrounds us and vice versa. We therefore set out to visualize the chemical diversity of five built human habitats together with their occupants, to provide a snapshot of the various molecules to which humans are exposed on a daily basis.
View Article and Find Full Text PDFThe potential of the diverse chemistries present in natural products (NP) for biotechnology and medicine remains untapped because NP databases are not searchable with raw data and the NP community has no way to share data other than in published papers. Although mass spectrometry (MS) techniques are well-suited to high-throughput characterization of NP, there is a pressing need for an infrastructure to enable sharing and curation of data. We present Global Natural Products Social Molecular Networking (GNPS; http://gnps.
View Article and Find Full Text PDFEur J Cardiovasc Prev Rehabil
February 2009
Aims: To compare the treatment and outcomes of myocardial infarction patients in hospitals with and without catheterization laboratory.
Methods And Results: The Hellenic Infarction Observation Study was a countrywide registry of acute myocardial infarction, conducted during 2005-2006. The registry enrolled 1840 patients with myocardial infarction from 31 hospitals with a proportional representation of all types of hospitals and of all geographical areas.
The presence of systemic inflammation determined by elevations in high-sensitivity C-reactive protein (hs-CRP) has been associated with persistence of atrial fibrillation (AF). The influence of inflammation markers, such as hs-CRP, on the recurrences of lone AF, however, has not been clarified. We tested the hypothesis of whether, in patients with a first paroxysmal episode of lone AF, the hs-CRP levels were elevated, and whether elevated hs-CRP could predict the recurrence rate of lone AF in patients without antiarrhythmic drugs.
View Article and Find Full Text PDFIschemia-modified albumin (IMA) levels were measured after radiofrequency (RF) catheter ablation to evaluate the effect of direct myocardial necrosis on IMA formation. IMA levels have been shown to increase in patients after RF catheter ablation compared with those who undergo diagnostic electrophysiologic studies. The results of this study suggest that IMA may be a marker of myocardial injury.
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