نتایج جستجو برای: asta

تعداد نتایج: 302  

2013
Naeimeh Najafi Ramin Hosseini Ali-Reza Ahmadi

BACKGROUND AND OBJECTIVES Astaxanthin, an orange-red carotenoid pigment, acts as a protective agent against oxidative damage to cells in vivo. The astaxanthin synthetase gene (crtS) size consists of 3995 bp. This gene has been suggested to catalyse β-carotene to astaxanthin in Phaffia rhodozyma. The aim of this research was to find any possible changes in this gene in two mutant strains, Gam1 a...

2011
Ulla Walfridsson Anna Strömberg

.................................................................................................................. 1 LIST OF PAPERS ........................................................................................................ 3 ABBREVIATIONS ....................................................................................................... 5 INTRODUCTION ............................

Journal: :Molecules 2018
Yi Jhen Wu Yu Chiuan Wu I-Fen Chen Yi-Lung Wu Chin Wen Chuang Han Hsiang Huang Shyh Ming Kuo

Astaxanthin (Asta), a xanthophyll carotenoid, has been reported to be a strong antioxidative agent and has anti-inflammatory, antitumor and free radical-scavenging activities. However, inadequate stability and water solubility results in its low bioavailability. This study incorporated Asta into hydrophilic hyaluronan nanoparticles (HAn) to produce Asta-HAn aggregates (AHAna) using an electrost...

2014
Tatiana G. Polotow Cristina V. Vardaris Andrea R. Mihaliuc Marina S. Gonçalves Benedito Pereira Douglas Ganini Marcelo P. Barros

Astaxanthin (ASTA) is a pinkish-orange carotenoid commonly found in marine organisms, especially salmon. ASTA is a powerful antioxidant and suggested to provide benefits for human health, including the inhibition of LDL oxidation, UV-photoprotection, and prophylaxis of bacterial stomach ulcers. Exercise is associated to overproduction of free radicals in muscles and plasma, with pivotal partici...

Journal: :Infection and immunity 2006
Weiping Zhang Emil M Berberov Jessica Freeling D He Rodney A Moxley David H Francis

Although heat-stable (ST) and heat-labile (LT) enterotoxins produced by enterotoxigenic Escherichia coli (ETEC) have been documented as important factors associated with diarrheal diseases, investigations assessing the contributions of individual enterotoxins to the pathogenesis of E. coli infection have been limited. To address the individual roles of enterotoxins in the diarrheal disease caus...

2006
Yona Kalechman Iris Sotnik Barkai Michael Albeck Gary Horwith Suren N. Sehagl Benjamin Sredni

Ammonium trichloro(dioxoethylene-O,O')tellurate (AS101) has been shown previously to provide radioprotective effects when given to mice 24 h prior to irradiation and to protect mice from lethal and sublethal doses of cyclophosphamide (CTX). In this study we examined the ability of AS101 to protect mice bone marrow colony forming units-granulocytemacrophage treated in vitro with various doses of...

2011
Harry G. Preuss Bobby Echard Eiji Yamashita Nicholas V. Perricone

The present investigation in Sprague-Dawley rats (SD) was designed to examine effects of astaxanthin (Asta) at different doses on elevated blood pressure (BP) and glucose-insulin perturbations produced by heavy sucrose ingestion. We also examined effects of Asta on BP during restraint stress. SD were divided into six groups each containing eight rats. All SD ate a basic diet of ground regular r...

2017
Yangsoon Lee Ji Yeon Sung Hyunsoo Kim Dongeun Yong Kyungwon Lee

Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, with its accuracy and speed, is widely used for bacterial identification. The ASTA MicroIDSys system (ASTA, Korea) was recently developed for species identification. We compared its performance with that of Bruker Biotyper (Bruker Daltonics, Germany). Microbes were recovered from sputum, urine, and pus samples from pa...

2014
Sara Franceschelli Mirko Pesce Alessio Ferrone Maria Anna De Lutiis Antonia Patruno Alfredo Grilli Mario Felaco Lorenza Speranza

Recently, astaxanthin (ASTA) studies have focused on several biological functions such as radical scavenging, singlet oxygen quenching, anti-carcinogenesis, anti-diabetic, anti-obesity, anti-inflammatory, anti-melanogenesis, and immune enhancement activities. In this study, we investigated the potential role protective of ASTA, an antioxidant marine carotenoid, in restoring physiological condit...

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