Search results for "BIOLOGICAL EFFECTS"
showing 7 items of 7 documents
Current and new insights on phytosterol oxides in plant sterol-enriched food.
2011
Over the past 15 years, plant sterol-enriched foods have faced a great increase in the market, due to the asserted cholesterol-lowering effect of plant sterols. However, owing to their chemical structures, plant sterols can oxidize and produce a wide variety of oxidation products with controversial biological effects. Although oxyphytosterols can derive from dietary sources and endogenous formation, their single contribution should be better defined. The following review provides an overall and critical picture on the current knowledge and future perspectives of plant sterols-enriched food, particularly focused on occurrence of plant sterol oxidation products and their biological effects. T…
In vitro quantitation of the effects of magnetic fields and radiofrequencies on amino acid metabolism
1996
The extensive use of Magnetic Resonance Imaging in medical diagnosis needs experimental confirmation of the real biological harmlessness of magnetic fields and radiofrequencies in the imaging process. To date, no unquestionable conclusions have been drawn and experimental results differ in various literature reports. We investigated the effects of radiofrequencies and magnetic fields on the amino acid content of plasma samples from 10 healthy volunteers aged 25 to 30 years; the samples were exposed for 60 minutes to MR fields at 0.5 T with the sequences commonly used in clinical practice. After exposure to magnetic fields, the samples were analyzed with chromatography and the results compar…
Citrus aurantium L. Active Constituents, Biological Effects and Extraction Methods. An Updated Review
2021
Citrus genus is a prominent staple crop globally. Long-term breeding and much hybridization engendered a myriad of species, each characterized by a specific metabolism generating different secondary metabolites. Citrus aurantium L., commonly recognized as sour or bitter orange, can exceptionally be distinguished from other Citrus species by unique characteristics. It is a fruit with distinctive flavor, rich in nutrients and phytochemicals which possess different health benefits. This paper presents an overview of the most recent studies done on the matter. It intends to provide an in-depth understanding of the biological activities and medicinal uses of active constituents existing in C. au…
Pharmacological Properties of Polyphenols: Bioavailability, Mechanisms of Action, and Biological Effects in In Vitro Studies, Animal Models, and Huma…
2021
Este artículo se encuentra disponible en la siguiente URL: https://www.mdpi.com/2227-9059/9/8/1074 Este artículo de investigación pertenece al número especial "Oxidative Stress and Inflammation: From Mechanisms to Therapeutic Approaches 2.0". Drugs are bioactive compounds originally discovered from chemical structures present in both the plant and animal kingdoms. These have the ability to interact with molecules found in our body, blocking them, activating them, or increasing or decreasing their levels. Their actions have allowed us to cure diseases and improve our state of health, which has led us to increase the longevity of our species. Among the molecules with pharmacological activity …
Reversible effect of MR and ELF magnetic fields (0.5 T and 0.5 mT) on human lymphocyte activation patterns.
2006
Purpose: The aim of this study was to investigate the effects of magnetic fields (MF) of different intensity generated by a magnetic resonance (MR) unit (0.5 Tesla) and a double cylindrical coil (0.5 mTesla) on human CD4+ T cell lines. Materials and methods: CD4+ T cells were exposed for two hours under isothermal conditions (37 ± 0.5°C) to the above mentioned MF; a control group was provided for each exposed sample. After exposure, the samples were analysed in the laboratory for the following endpoints: Release of cytokines, expression of surface markers, cell proliferation and levels of cytosolic free-calcium. Results: Exposure to MF for 2 h and subsequent in vitro stimulation in the pres…
Lisämateriaali julkaisuun: Genetic colour variation visible for predators and conspecifics is concealed from humans in a polymorphic moth
2022
The definition of colour polymorphism is intuitive: genetic variants express discretely-coloured phenotypes. This classification is however elusive as humans form subjective categories or ignore differences that cannot be seen by human eyes. We demonstrate an example of a ‘cryptic morph’ in a polymorphic wood tiger moth (Arctia plantaginis), a phenomenon that may be common among well-studied species. We used pedigree data from nearly 20000 individuals to infer the inheritance of hindwing colouration. The evidence supports a single Mendelian locus with two alleles in males: WW and Wy produce the white and yy the yellow hindwing colour. The inheritance could not be resolved in females as thei…
LA SENTINELLA GLOBALE. I campi elettromagnetici del MUOS di Niscemi e i loro effetti.
2017
Il MUOS (Mobile User Objective System), un radar installato in Sicilia proprio all’interno della riserva “sughereta di Niscemi”, è una delle quattro sentinelle del sistema globale che la Us Navy ha realizzato nei vari angoli del mondo per tenere sott’occhio tutto il pianeta. La storia di questo impianto è fatta di promesse non mantenute, di interventi politici pro MUOS poi sconfessati dalla magistratura, di proteste organizzate nel tentativo di interloquire con quei poteri, che pure erano sembrati disponibili. Al fondo delle azioni del movimento NO MUOS, che qui vengono ricordate insieme all’analogo caso di Radio Vaticana che all’inizio degli anni Duemila scosse il mondo politico italiano, …