Search results for "Flora"
showing 10 items of 989 documents
Confocal laser endomicroscopy is a new imaging modality for recognition of intramucosal bacteria in inflammatory bowel disease in vivo.
2011
International audience; BACKGROUND AND OBJECTIVES: Interaction of bacteria with the immune system within the intestinal mucosa plays a key role in the pathogenesis of inflammatory bowel disease (IBD). The aim of the current study was to develop a fluorescein-aided confocal laser endomicroscopy (CLE) method to visualise intramucosal enteric bacteria in vivo and to determine the involved mucosal area in the colon and ileum in patients with ulcerative colitis (UC) and Crohn's disease (CD). METHODS: Initially, E coli strains expressing enhanced green fluorescent protein (pEGFP) were endomicroscopically imaged in mice. In addition, ex vivo and in vivo imaging of fluorescent human enteric bacteri…
Corrective factors of intestinal microflora disorders in the perinatal period
2019
Intestinal microflora is found at approximately 104 bacteria per ml of intestinal fluid. Although this ecosystem is very diverse with dynamic changes taking place within it, there is a certain stability in the type and number of species, referred to as the core microbiome, found in 95% of the human population. Genetic variation of microorganisms is relatively small, and their functions are strictly defined and highly conservative. The microbiome exists symbiotically with the host, protecting it against colonization by pathogenic microorganisms, providing essential metabolites, and stimulating the immune system. Colonization begins prenatally and its development is greatly influenced by the …
Peri-implantitis : associated microbiota and treatment
2010
Introduction: Peri-implantitis is a late complication of dental implant treatment, induced by microbiological changes. Since the disorder is frequent, a review is indicated of the microorganisms that influence it and of the existing treatment options. Objective: To conduct a literature review of the microbiota associated to peri-implantitis and the existing treatment options. Material and Method: A PubMed literature search was made of the studies on the microbiota associated to dental implants in healthy patients and patients with peri-implantitis, as well as of the latest treatment developments, using the following key words: "peri-implantitis AND microbiota", "periimplantitis AND microbio…
Urinaryp-cresol is elevated in young French children with autism spectrum disorder: a replication study
2014
The aromatic compound p-cresol (4-methylphenol) has been found elevated in the urines of Italian autistic children up to 8 years of age. The present study aims at replicating these initial findings in an ethnically distinct sample and at extending them by measuring also the three components of urinary p-cresol, namely p-cresylsulfate, p-cresylglucuronate and free p-cresol. Total urinary p-cresol, p-cresylsulfate and p-cresylglucuronate were significantly elevated in 33 French autism spectrum disorder (ASD) cases compared with 33 sex- and age-matched controls (p < 0.05). This increase was limited to ASD children aged ≤8 years (p < 0.01), and not older (p = 0.17). Urinary levels of p-cresol a…
Medicinal plants and antimicrobial activity.
2005
In the present paper, we analyze the past, present and future of medicinal plants, both as potential antimicrobial crude drugs as well as a source for natural compounds that act as new anti-infection agents. In the past few decades, the search for new anti-infection agents has occupied many research groups in the field of ethnopharmacology. When we reviewed the number of articles published on the antimicrobial activity of medicinal plants in PubMed during the period between 1966 and 1994, we found 115; however, in the following decade between 1995 and 2004, this number more than doubled to 307. In the studies themselves one finds a wide range of criteria. Many focus on determining the antim…
The role of ethnobotanics in scientific research. State of ethnobotanical knowledge in Sicily.
2000
This contribution deals with the traditional use of plants of the Sicilian flora. Special attention is given to the species used in popular medicine. Moreover, the importance of ethnobotanics in scientific research and its role in toxicology are shown.
Cytotoxicity of Secondary Metabolites from Dracaena viridiflora Engl & Krause and their Semisynthetic Analogues
2017
The MeOH extract of Dracaena viridiflora was found to display significant cytotoxicity against some cancer cell lines. Systematic phytochemical investigation of this extract led to the isolation and structure elucidation of ten secondary metabolites including five spirostane (1-5) and one furostane (6) steroidal saponins. Furthermore, some acetylated spirostane analogues and three previously unreported derivatives with the 22,26-epoxycholesta-5,22-diene skeleton (15-17) were prepared from trillin (1), prosapogenin A of dioscin (2) and dioscin (4) by reaction with ZnCl 2/Ac 2O. Among the isolated and semisynthetic compounds, dioscin showed the most potent cytotoxicity against A549, Jurkat an…
Checklist of the vascular flora of Sicily
2010
ABSTRACT. – Checklist of the vascular flora of Sicily. – On the basis of updated literature data the authors have prepared a checklist of the vascular flora of Sicily. This list subdivided in Pteridophyta, Pinophyta and Magnoliophyta, is arranged in alphabetical order. It includes 3252 specific and infraspecific taxa both native and naturalized. This list reports biologic forms and subforms and the chorotypes. Three name validations and two new combinations are also given. This list is available in electronic format at (http://www.herbmedit.org).
Piogēno infekciju ierosinātāji ķirurģiskajā klīnikā
2016
Diplomdarba temats – Piogēno infekciju ierosinātāji ķirurģiskajā klīnikā. Diplomdarba mērķis – analizēt biežākos un retākos piogēno infekciju ierosinātājus ķirurģiskajā klīnikā. Darba sastādīšanā ir izmantotas 13 grāmatas un 20 zinātniski pētnieciskie raksti. Pētījumā tika izmantotas vispārzinātniskās pētījumu metodes – grafiskā, monogrāfiskā un analītiskā statistikas metodes: aprēķināts absolūtais un relatīvais biežums un vidējā vērtība. Galvenie rezultāti – iegūti dati no VSIA “Traumatoloģijas un ortopēdijas slimnīca”, Mikrobioloģijas laboratorijas arhīva par 2010., 2013. un 2014. gadu par piogēno infekciju ierosinātājiem, izpētīti piogēno infekciju ierosinātāji pa grupām un sugām, noteik…
Phytochemical Profile and Antioxidant Activity of the Aerial Part Extracts from Matthiola incana subsp. rupestris and subsp. pulchella (Brassicaceae)…
2021
As part of a project aimed at investigating the Matthiola taxa endemic to Sicily (Italy), this study focused on Matthiola incana, an edible species used in the traditional medicine of various countries. Herein, the characterization of phenolic and volatile compounds, the antioxidant capacity in vitro (1,1-diphenyl-2-picrylhydrazil (DPPH), reducing power and Fe2+ chelating activity assays) and the toxicity test (Artemia salina lethality bioassay) of the hydroalcoholic extracts from the aerial parts of M. incana subsp. rupestris from Mt. Pellegrino (Palermo) and Mt. Erice (Trapani), and of M. incana subsp. pulchella are reported. The results are compared with those previously shown for M. inc…