keyword
MENU ▼
Read by QxMD icon Read
search

Seaweed

keyword
https://www.readbyqxmd.com/read/28645755/microwave-assisted-micellar-extraction-of-organic-and-inorganic-iodines-using-zwitterionic-surfactants
#1
Shu-Ling Wang, Ling Yi, Li-Hong Ye, Jun Cao, Li-Jing Du, Li-Qing Peng, Jing-Jing Xu, Qi-Dong Zhang
Zwitterionic surfactant, used as extractant in microwave-assisted extraction (MAE) was investigated for the first time to extract organic and inorganic iodines from kelp samples. Optimized conditions for the MAE were 200W of microwave irradiation power, 100°C of extraction temperature, 10min of microwave irradiation time, 1g of sample, and 20mL of solvent volume. Ultrahigh-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOF/MS) was used for the quantitative and qualitative analyses of the iodines...
June 17, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28642129/fucoxanthin-inhibits-profibrotic-protein-expression-in-vitro-and-attenuates-bleomycin-induced-lung-fibrosis-in-vivo
#2
Sun Young Ma, Won Sun Park, Dae-Sung Lee, Grace Choi, Mi-Jin Yim, Jeong Min Lee, Won-Kyo Jung, Sae Gwang Park, Su-Kil Seo, Sung Jae Park, Il Yong Han, Yung Hyun Choi, Il-Whan Choi
Pulmonary fibrosis, a potentially fatal disease, results from acute and chronic interstitial lung diseases. Fucoxanthin (Fx), a carotenoid found in brown seaweed, shows a wide range of pharmacological activities. In this study, we investigated the antifibrotic effects of fucoxanthin and their underlying molecular mechanisms in transforming growth factor-beta1 (TGF-β1)-stimulated human pulmonary fibroblasts (HPFs). Thus, the effects of Fx on TGF-β1-induced expression of fibrotic factors, such as alpha-smooth muscle actin (α-SMA), type 1 collagen, fibronectin, and interleukin-6 (IL-6), in HPFs were investigated...
June 19, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28638878/effect-of-fucoidan-on-b16-murine-melanoma-cell-melanin-formation-and-apoptosis
#3
Zhi-Jiang Wang, Wei Xu, Jian-Wen Liang, Cai-Sheng Wang, Yani Kang
BACKGROUND: Fucoidan is a complex sulfated polysaccharide extracted from brown seaweed and has a wide variety of biological activities. It not only inhibits cancer cell growth but also inhibits tyrosinase in vitro. Therefore, it is of interest to investigate the effect of fucoidan on B16 murine melanoma cells as the findings may provide new insights into the underlying mechanism regarding the inhibition of melanin formation by fucoidan. In the present study, we aimed to investigate the anti-melanogenic effect of fucoidan and its inhibitory effect on B16 cells...
2017: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
https://www.readbyqxmd.com/read/28637390/isolation-structural-elucidation-and-antiplasmodial-activity-of-fucosterol-compound-from-brown-seaweed-sargassum%C3%A2-linearifolium-against-malarial-parasite-plasmodium-falciparum
#4
Pachiappan Perumal, Rajamani Sowmiya, Sundaram Prasanna Kumar, Sundaram Ravikumar, Paramasivam Deepak, Govindasamy Balasubramani
The brown seaweed, Sargassum linearifolium (Turner) C. Agardh, 1820 is commonly available along the south-east coast of India. Its compound fucosterol was isolated and confirmed through spectral characterisation and chemical transformation methods. The antiplasmodial effect of the isolated fucosterol was investigated against the 3D7 chloroquine sensitive Plasmodium falciparum strain, parasitaemia percentage was determined at 48 h and morphological change was studied through microscopic examination after Giemsa staining...
June 21, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28635654/the-identification-of-a-sirt6-activator-from-brown-algae-fucus-distichus
#5
Minna K Rahnasto-Rilla, Padraig McLoughlin, Tomasz Kulikowicz, Maire Doyle, Vilhelm A Bohr, Maija Lahtela-Kakkonen, Luigi Ferrucci, Maria Hayes, Ruin Moaddel
Brown seaweeds contain many bioactive compounds, including polyphenols, polysaccharides, fucosterol, and fucoxantin. These compounds have several biological activities, including anti-inflammatory, hepatoprotective, anti-tumor, anti-hypertensive, and anti-diabetic activity, although in most cases their mechanisms of action are not understood. In this study, extracts generated from five brown algae (Fucus dichitus, Fucus vesiculosus (Linnaeus), Cytoseira tamariscofolia, Cytoseira nodacaulis, Alaria esculenta) were tested for their ability to activate SIRT6 resulting in H3K9 deacetylation...
June 21, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28635652/fucaceae-a-source-of-bioactive-phlorotannins
#6
REVIEW
Marcelo D Catarino, Artur M S Silva, Susana M Cardoso
Fucaceae is the most dominant algae family along the intertidal areas of the Northern Hemisphere shorelines, being part of human customs for centuries with applications as a food source either for humans or animals, in agriculture and as remedies in folk medicine. These macroalgae are endowed with several phytochemicals of great industrial interest from which phlorotannins, a class of marine-exclusive polyphenols, have gathered much attention during the last few years due to their numerous possible therapeutic properties...
June 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28634933/3d-cell-culture-in-interpenetrating-networks-of-alginate-and-rbm-matrix
#7
Katrina Wisdom, Ovijit Chaudhuri
Altered tissue mechanical properties have been implicated in many key physiological and pathological processes. Hydrogel-based materials systems, made with native extracellular matrix (ECM) proteins, nonnative biopolymers, or synthetic polymers are often used to study these processes in vitro in 3D cell culture experiments. However, each of these materials systems present major limitations when used in mechanobiological studies. While native ECM-based hydrogels may enable good recapitulation of physiological behavior, the mechanics of these hydrogels are often manipulated by increasing or decreasing the protein concentration...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28634348/distinct-arsenic-metabolites-following-seaweed-consumption-in-humans
#8
Vivien F Taylor, Zhigang Li, Vicki Sayarath, Thomas J Palys, Kevin R Morse, Rachel A Scholz-Bright, Margaret R Karagas
Seaweeds contain arsenic primarily in the form of arsenosugars, which can be metabolized to a wide range of arsenic compounds. To characterize human exposure to arsenic from seaweed consumption, we determined concentrations of arsenic species in locally available seaweeds, and assessed urinary arsenic compounds in an experimental feeding study. A total of 11 volunteers consumed 10 g per day of three types of seaweeds (nori, kombu, and wakame) for three days each, while abstaining from rice and seafood following a three-day washout period...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28627320/an-exploratory-study-on-the-anti-inflammatory-effects-of-fucoidan-in-relation-to-quality-of-life-in-advanced-cancer-patients
#9
Hidenori Takahashi, Mitsuhiko Kawaguchi, Kunihiro Kitamura, Seiji Narumiya, Munenori Kawamura, Isamu Tengan, Shinji Nishimoto, Yasuo Hanamure, Yasuo Majima, Shuichi Tsubura, Kiichiro Teruya, Sanetaka Shirahata
BACKGROUND: Conventional anticancer therapies still cause difficulties with selective eradication and accompanying side effects that reduce patients' quality of life (QOL). Fucoidan is extracted from seaweeds and has already exhibited broad bioactivities, including anticancer and anti-inflammatory properties, in basic studies. It is expected to enhance therapeutic efficacy and minimize side effects in cancer patients; however, despite its potential benefits, there are very few clinical trials using fucoidans...
February 1, 2017: Integrative Cancer Therapies
https://www.readbyqxmd.com/read/28624904/the-effect-of-light-on-bacterial-activity-in-a-seaweed-holobiont
#10
Sergio A Coelho-Souza, Stuart R Jenkins, Antonio Casarin, Maria Helena Baeta-Neves, Leonardo T Salgado, Jean R D Guimaraes, Ricardo Coutinho
Holobionts are characterized by the relationship between host and their associated organisms such as the biofilm associated with macroalgae. Considering that light is essential to macroalgae survival, the aim of this study was to verify the effect of light on the heterotrophic activity in biofilms of the brown macroalgae Sargassum furcatum during its growth cycle. Measurements of heterotrophic activity were done under natural light levels at different times during a daily cycle and under an artificial extinction of natural light during the afternoon...
June 17, 2017: Microbial Ecology
https://www.readbyqxmd.com/read/28622987/bioremediation-using-gracilaria-lemaneiformis-to-manage-the-nitrogen-and-phosphorous-balance-in-an-integrated-multi-trophic-aquaculture-system-in-yantian-bay-china
#11
Zhangliang Wei, Jiaguo You, Hailong Wu, Fangfang Yang, Lijuan Long, Qiao Liu, Yuanzi Huo, Peimin He
To reduce negative environmental impacts from human aquaculture activities, the red alga Gracilaria lemaneiformis was co-cultured with the fish Pseudosciaena crocea in an integrated multi-trophic aquaculture (IMTA) system for 35d in Yantian Bay. The eutrophication index value decreased from 14.5 to 8.4 after seaweeds were co-cultured in cage farming areas, which indicated that the eutrophic water column in Yantian Bay could be mediated by IMTA. Total DIN and DIP of the tidal input and output were 9.23kg, 0...
June 13, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28621126/identification-of-organic-iodine-compounds-and-their-transformation-products-in-edible-iodized-salt-using-liquid-chromatography-high-resolution-mass-spectrometry
#12
Lifen Yun, Yue'e Peng, Qing Chang, Qingxin Zhu, Wei Guo, Yanxin Wang
The consumption of edible iodized salt is a key strategy to control and eliminate iodine deficiency disorders worldwide. We herein report the identification of the organic iodine compounds present in different edible iodized salt products using liquid chromatography combined with high resolution mass spectrometry. A total of 38 organic iodine compounds and their transformation products (TPs) were identified in seaweed iodine salt from China. Our experiments confirmed that the TPs were generated by the replacement of I atoms from organic iodine compounds with Cl atoms...
June 16, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28620480/reduction-of-hba1c-levels-by-fucoxanthin-enriched-akamoku-oil-possibly-involves-the-thrifty-allele-of-uncoupling-protein-1-ucp1-a-randomised-controlled-trial-in-normal-weight-and-obese-japanese-adults
#13
Nana Mikami, Masashi Hosokawa, Kazuo Miyashita, Hitoshi Sohma, Yoichi M Ito, Yasuo Kokai
Lifestyle-related problems are becoming a major health threat in East Asian countries. Therefore, finding an efficacious nutraceutical for this population is important. One candidate is fucoxanthin (Fx), a carotenoid abundantly found in edible brown seaweed that has been associated with a number of valuable health-promoting benefits. Unfortunately, clinical studies of Fx are limited. In the present study, we aimed to evaluate the effects of Fx on obesity-related parameters in Japanese subjects harbouring an SNP associated with lifestyle-related problems...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/28620218/bioinspired-nanocoatings-for-biofouling-prevention-by-photocatalytic-redox-reactions
#14
Priyanka Sathe, Karthik Laxman, Myo Tay Zar Myint, Sergey Dobretsov, Jutta Richter, Joydeep Dutta
Aquaculture is a billion dollar industry and biofouling of aquaculture installations has heavy economic penalties. The natural antifouling (AF) defence mechanism of some seaweed that inhibits biofouling by production of reactive oxygen species (ROS) inspired us to mimic this process by fabricating ZnO photocatalytic nanocoating. AF activity of fishing nets modified with ZnO nanocoating was compared with uncoated nets (control) and nets painted with copper-based AF paint. One month experiment in tropical waters showed that nanocoatings reduce abundances of microfouling organisms by 3-fold compared to the control and had higher antifouling performance over AF paint...
June 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28605976/anti-mutagenic-potential-of-algal-extracts-on-chromosomal-aberrations-in-allium-cepa-l
#15
Hoda Anwer Mansour, Hala Mahfouz, Nesma Maher
In the present study, sodium azide (SA) toxicity and the anti-mutagenic effects of different algal extracts at 0.1% and 0.2% concentrations were studied on the mitotic index (MI), chromosomal and nuclear aberrations using Allium cepa L. root assay. Moreover, phytochemical screening of photosynthetic pigments, antioxidants compounds, total antioxidant, DPPH scavenging activity, polysaccharides, and phenolic contents were done for two red seaweeds (Laurencia obtusa (Hudson) Lamouroux and Polysiphonia morrowii Harvey) and for one brown seaweed (Dictyopteris delicatula Lamouroux)...
June 2017: Acta Biologica Hungarica
https://www.readbyqxmd.com/read/28604867/how-seaweeds-release-the-excess-energy-from-sunlight-to-surrounding-sea-water
#16
Kenichi Koizumi, Makoto Hatakeyama, Mauro Boero, Katsuyuki Nobusada, Hirokazu Hori, Taku Misonou, Shinichiro Nakamura
We report an atomistic insight into the mechanism regulating the energy released by a porphyra-334 molecule, the ubiquitous photosensitive component of marine algae, in a liquid water environment upon an electron excitation. To quantify this rapidly occurring process, we resort to the Fourier analysis of the mass-weighted auto-correlation function, providing evidence for a remarkable dynamic change in the number of hydrogen bonds among water molecules and between the porphyra-334 and its surrounding hydrating water...
June 21, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28603844/seaweed-morphology-and-ecology-during-the-great-animal-diversification-events-of-the-early-paleozoic-a-tale-of-two-floras
#17
S T LoDuca, N Bykova, M Wu, S Xiao, Y Zhao
Non-calcified marine macroalgae ("seaweeds") play a variety of key roles in the modern Earth system, and it is likely that they were also important players in the geological past, particularly during critical transitions such as the Cambrian Explosion (CE) and the Great Ordovician Biodiversification Event (GOBE). To investigate the morphology and ecology of seaweeds spanning the time frame from the CE through the GOBE, a carefully vetted database was constructed that includes taxonomic and morphometric information for non-calcified macroalgae from 69 fossil deposits...
June 12, 2017: Geobiology
https://www.readbyqxmd.com/read/28597431/antioxidant-responses-and-photosynthetic-behaviors-of-kappaphycus-alvarezii-and-kappaphycus-striatum-rhodophyta-solieriaceae-during-low-temperature-stress
#18
Hu Li, Jianguo Liu, Litao Zhang, Tong Pang
BACKGROUND: Kappaphycus are farmed in tropical countries as raw material for carrageenan, which is widely used in food industry. The sea area available for farming is one limiting factor in the production of seaweeds. Though cultivation is spreading into subtropical regions, the lower seawater temperature is an important problem encountered in subtropical regions for the farming of Kappaphycus. This research of physiological response to low temperature stress will be helpful for screening Kappaphycus strains for growth in a lower temperature environment...
December 2016: Botanical Studies (Taipei, Taiwan)
https://www.readbyqxmd.com/read/28590557/declines-in-plant-palatability-from-polar-to-tropical-latitudes-depend-on-herbivore-and-plant-identity
#19
Alyssa M Demko, Charles D Amsler, Mark E Hay, Jeremy D Long, James B McClintock, Valerie J Paul, Erik E Sotka
Long-standing theory predicts that the intensity of consumer-prey interactions declines with increasing latitude, yet for plant-herbivore interactions, latitudinal changes in herbivory rates and plant palatability have received variable support. The topic is of growing interest given that lower-latitude species are moving poleward at an accelerating rate due to climate change, and predicting local interactions will depend partly on whether latitudinal gradients occur in these critical biotic interactions. Here, we assayed the palatability of 50 seaweeds collected from polar (Antarctica), temperate (northeastern Pacific; California), and tropical (central Pacific; Fiji) locations to two herbivores native to the tropical and subtropical Atlantic, the generalist crab Mithraculus sculptus and sea urchin Echinometra lucunter...
June 7, 2017: Ecology
https://www.readbyqxmd.com/read/28587401/antioxidant-properties-of-the-red-alga-asparagopsis-taxiformis-collected-on-the-north-west-algerian-coast
#20
Zoheir Mellouk, Ilhem Benammar, Djamil Krouf, Makhlouf Goudjil, Meriem Okbi, Willy Malaisse
The aim of the present study was to evaluate the total phenolic and lipid content, fatty acids profiles and in vitro antioxidant activities of aqueous and solvent extracts of the red seaweed Asparagopsis taxiformis, through six different investigations. The present study demonstrated that phenol contents (mg gallic acid/g dry weight) were highest in the aqueous and methanolic extracts, followed by the ethanolic, hydroethanolic and hydromethanolic extracts. The lowest phenol contents were identified in the three remaining extracts: Butanolic, petroleum ether and acetone extracts...
June 2017: Experimental and Therapeutic Medicine
keyword
keyword
25707
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"