Search results for " Vita"
showing 10 items of 610 documents
Energy Transfer between Surface-Immobilized Light-Harvesting Chlorophyll a/b Complex (LHCII) Studied by Surface Plasmon Field-Enhanced Fluorescence S…
2010
The major light-harvesting chlorophyll a/b complex (LHCII) of the photosynthetic apparatus in green plants can be viewed as a protein scaffold binding and positioning a large number of pigment molecules that combines rapid and efficient excitation energy transfer with effective protection of its pigments from photobleaching. These properties make LHCII potentially interesting as a light harvester (or a model thereof) in photoelectronic applications. Most of such applications would require the LHCII to be immobilized on a solid surface. In a previous study we showed the immobilization of recombinant LHCII on functionalized gold surfaces via a 6-histidine tag (His tag) in the protein moiety. …
The origin of Lecithodesmus (Digenea: Campulidae) based on ND3 gene comparison
2000
Species of Lecithodesmus (Campulidae) occur almost exclusively in baleen whales throughout a wide geographical distribution. Other campulids occur only in odontocetes and, secondarily, in pinnipeds and the sea otter. Therefore, the ancestor of Lecithodesmus might have either cospeciated with mysticetes during the early divergence of mysticete and odontocete cetaceans or originated later via host switching. We evaluate both possibilities based on a phylogenetic analysis. The ND3 mitochondrial gene sequence of a species of Lecithodesmus was included in a previous partial molecular phylogeny of the Campulidae. Fasciola hepatica and Dicrocoelium dendriticum were used as outgroups. Maximum parsi…
I confini della responsabilità civile e la controversia sulle malformazioni genetiche del nascituro: il rifiuto del c.d. danno da vita indesiderata
2016
Il commento esprime condivisione per le soluzioni cui le Sezioni unite giungono tanto sul tema del riparto dei temi di prova in caso di domanda di risarcimento per il danno c.d. da nascita indesiderata, quanto sulla questione del c.d. danno da vita indesiderata. Su questo secondo aspetto, il commento, pur convenendo sull’impossibilita` di configurare un pregiudizio siffatto, suggerisce una via argomentativa diversa da quella imboccata dalle Sezioni unite al fine di dimostrare che le malformazioni genetiche sulle quali il medico non puo` in alcun modo incidere non integrano gli estremi del danno. In ogni caso, la fattispecie di responsabilita` non risulterebbe integrata neanche sotto il prof…
Coaches’ Corrective Feedback, Psychological Needs, and Subjective Vitality in Mexican Soccer Players
2021
In the sport context, an essential aspect of an athlete’s development and performance happens during the interaction with the coach while receiving information on the aspects of performance that need to be modified (corrective feedback). Grounded in the Self-Determination Theory and particularly on the basic psychological needs theory, a structural equation model (SEM) was tested with the following sequence: perception of the amount of corrective feedback generated by the coach, perceived legitimacy of corrective feedback, satisfaction of basic psychological needs, and vitality in soccer players. Additionally, simple mediation and serial (double) mediation models were also tested. Participa…
La salute dei migranti
2016
Da un’analisi della letteratura sulle condizioni sociali e sanitarie dell’immigrato, si possono determinare alcune aree critiche che necessitano di particolare attenzione soprattutto in termini di programmazione e di pianificazione di politica e di comunicazione socio-sanitaria. Possiamo suddividere queste aree in tre ambiti sommariamente delimitati da alcune condizioni patologiche, fisiologiche e sociali. - condizioni patologiche: malattie infettive (tb, mst, ...), malattie dermatologiche, disagio/malattie psichiatriche, traumi e incidenti, NCD; - condizioni fisiologiche: maternità, infanzia, vecchiaia; - condizioni sociali: prostituzione e tratta, abuso, detenzione; - aggravanti: disagio …
Vitamin D 25OH Deficiency and Mortality in Moderate to Severe COVID-19: A Multi-Center Prospective Observational Study.
2022
IntroductionSeveral studies and meta-analyses suggested the role of vitamin D 25OH in preventing severe forms of coronavirus disease 2019 (COVID-19). However, the evidence on the clinical benefits of vitamin D 25OH adequacy in patients hospitalized for COVID-19 remain conflicting and speculative. We aimed to investigate the association between vitamin D 25OH serum levels and mortality in hospitalized patients with moderate to severe COVID-19.MethodThis prospective observational multicentre study included 361 consecutive patients with moderate to severe COVID-19 admitted to the Italian hospitals involved in the NUTRI-COVID19 trial from March to August 2020. For each patient, serum vitamin D …
Immunohistochemical Expression of Vitamin D Receptor in Uterine Fibroids
2022
One of the many factors involved in the development of uterine fibroids is vitamin D deficiency. One aspect of this deficiency is decreased serum concentration of calcidiol-25(OH)D, a metabolite of D3 vitamin. The active form of vitamin D3, which arises after numerous enzymatic reactions, is calcitriol-1,25(OH)2D3; this compound is transported to various body tissues. Vitamin D possesses extra-genomic effects due to its influence on various signaling pathways, i.e., through activating tyrosine kinases and by genomic effects via binding to a specific nuclear receptor, vitamin D receptor (VDR). The vitamin D/VDR complex regulates the expression of genes and is involved in the pathogenesis of …
Bioloģiski aktīvo vielu satura izvērtējums mežrozīšu augļu (Rosa canina) ekstraktos
2016
Bioloģiski aktīvo vielu satura izvērtējums mežrozīšu augļu (Rosa canina) ekstraktos. Oliņa M., darba vadītāja Dr. ķīm., asoc. prof. Jākobsone I., Maģistra darbs, 83 lappuses, 29 attēli, 10 tabulas, 79 literatūras avoti, 8 pielikumi. Latviešu valodā. Darbā ir apkopota informāciju par dažāda veida augu ekstraktiem, ekstrakciju, ekstrakcijas metodēm, mežrozītes augļiem, tajos esošajām bioloģiski aktīvajām vielām un to satura noteikšanas metodēm. Titrimetriski noteikts askorbīnskābes un brīvo organisko skābju saturs mežrozītes augļu ekstraktos. Spektrofotometriski noteikts karotīna, kopējo fenola savienojumu, kopējo flavonoīdu, kopējo monomēro antocianīnu saturs mežrozītes augļu ekstraktos un š…
THE ROLE OF HIGH-DOSE VITAMIN D IN RISK REDUCTION OF OSTEONECROSIS OF THE JAW IN CANCER PATIENTS RECEIVING ZOLEDRONIC ACID
Osteonecrosis of the jaw (ONJ) is a serious complication of oncological patients after or during drug therapy, whose manifestations range from asymptomatic to aspects requiring extensive operative treatment and adversely affecting patient’s qualify of life. Taking in account that the lack of supplementation vitamin D causes hypovitaminosis, increasing bone renewal, losing bone mass, and in severe cases determing osteomalacia (one of the risk factors for ONJ) and that the probability of developing ONJ increases significantly during the first 3 years of treatment, the main objective of the present study is to assess whether the implementation of high-dose vitamin D in oncologic patients treat…
Vitamin D in cancer chemoprevention
2015
Context: There is increasing evidence that Vitamin D (Vit D) and its metabolites, besides their well-known calcium-related functions, may also exert antiproliferative, pro-differentiating, and immune modulatory effects on tumor cells in vitro and may also delay tumor growth in vivo. Objective: The aim of this review is to provide fresh insight into the most recent advances on the role of Vit D and its analogues as chemopreventive drugs in cancer therapy. Methods: A systematic review of experimental and clinical studies on Vit D and cancer was undertaken by using the major electronic health database including ISI Web of Science, Medline, PubMed, Scopus and Google Scholar. Results and conclus…