keyword
MENU ▼
Read by QxMD icon Read
search

HAB

keyword
https://www.readbyqxmd.com/read/28967188/bioactive-nano-fibrous-scaffold-for-vascularized-craniofacial-bone-regeneration
#1
Rahul Damodaran Prabha, David Christian Evar Kraft, Linda Harkness, Birte Melsen, Harikrishna Varma, Prabha D Nair, Jorgen Kjems, Mousthapha Kassem
There has been a growing demand for bone grafts for correction of bone defects in complicated fractures or tumors in the craniofacial region. Soft flexible membrane like material that could be inserted into defect by less invasive approaches; promote osteoconductivity and act as a barrier to soft tissue in growth while promoting bone formation is an attractive option for this region. Electrospinning has recently emerged as one of the most promising techniques for fabrication of extracellular matrix (ECM) like nano-fibrous scaffolds that can serve as a template for bone formation...
October 2, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28962989/applicability-of-massively-parallel-sequencing-on-monitoring-harmful-algae-at-varna-bay-in-the-black-sea
#2
Nina Dzhembekova, Shingo Urusizaki, Snejana Moncheva, Petya Ivanova, Satoshi Nagai
In this study the plankton diversity in 13 environmental samples from Varna Bay (in the western Black Sea) was analyzed using massively parallel sequencing (MPS). This preliminary study was undertaken to assess the potential of this technology for future implementation in monitoring programs in the Black Sea. Amplicon sequences of the 18S rRNA gene (V4-5 regions) were obtained using the Illumina MiSeq 250PE platform. A total of 1137 operational taxonomic units (OTUs) were obtained among which 242 OTUs with >0...
September 2017: Harmful Algae
https://www.readbyqxmd.com/read/28962986/transcriptional-response-of-the-harmful-raphidophyte-heterosigma-akashiwo-to-nitrate-and-phosphate-stress
#3
Sheean T Haley, Harriet Alexander, Andrew R Juhl, Sonya T Dyhrman
The marine eukaryotic alga Heterosigma akashiwo (Raphidophyceae) is known for forming ichthyotoxic harmful algal blooms (HABs). In the past 50 years, H. akashiwo blooms have increased, occurring globally in highly eutrophic coastal and estuarine systems. These systems often incur dramatic physicochemical changes, including macronutrient (nitrogen and phosphorus) enrichment and depletion, on short timescales. Here, H. akashiwo cultures grown under nutrient replete, low N and low P growth conditions were examined for changes in biochemical and physiological characteristics in concert with transcriptome sequencing to provide a mechanistic perspective on the metabolic processes involved in responding to N and P stress...
September 2017: Harmful Algae
https://www.readbyqxmd.com/read/28962984/effect-of-co2-on-growth-and-toxicity-of-alexandrium-tamarense-from-the-east-china-sea-a-major-producer-of-paralytic-shellfish-toxins
#4
Min Pang, Jintao Xu, Pei Qu, Xuewei Mao, Zhenxing Wu, Ming Xin, Ping Sun, Zongxing Wang, Xuelei Zhang, Hongju Chen
In recent decades, the frequency and intensity of harmful algal blooms (HABs), as well as a profusion of toxic phytoplankton species, have significantly increased in coastal regions of China. Researchers attribute this to environmental changes such as rising atmospheric CO2 levels. Such addition of carbon into the ocean ecosystem can lead to increased growth, enhanced metabolism, and altered toxicity of toxic phytoplankton communities resulting in serious human health concerns. In this study, the effects of elevated partial pressure of CO2 (pCO2) on the growth and toxicity of a strain of Alexandrium tamarense (ATDH) widespread in the East and South China Seas were investigated...
September 2017: Harmful Algae
https://www.readbyqxmd.com/read/28962978/identification-of-unique-microbiomes-associated-with-harmful-algal-blooms-caused-by-alexandrium-fundyense-and-dinophysis-acuminata
#5
Theresa K Hattenrath-Lehmann, Christopher J Gobler
Biotic interactions dominate plankton communities, yet the microbial consortia associated with harmful algal blooms (HABs) have not been well-described. Here, high-throughput amplicon sequencing of ribosomal genes was used to quantify the dynamics of bacterial (16S) and phytoplankton assemblages (18S) associated with blooms and cultures of two harmful algae, Alexandrium fundyense and Dinophysis acuminata. Experiments were performed to assess changes in natural bacterial and phytoplankton communities in response to the filtrate from cultures of these two harmful algae...
September 2017: Harmful Algae
https://www.readbyqxmd.com/read/28950136/pyrolysis-of-arundo-donax-l-to-produce-pyrolytic-vinegar-and-its-effect-on-the-growth-of-dinoflagellate-karenia-brevis
#6
Hao Zheng, Cuizhu Sun, Xiaodong Hou, Miao Wu, Yuan Yao, Fengmin Li
Harmful algal blooms (HABs) have become global environmental issues, and the demand for alternative algaecides is urgent. Pyrolytic vinegars (PVs) were pyrolyzed from giant reed at 300-600°C to investigate the underlying mechanisms of their inhibitory effect on the red tide dinoflagellate Karenia brevis by sub-chronic toxicity experiments. The major components of PVs were acetic acid, phenols, aldehyde, ketone, and esters. The 96h median effective concentration (96h-EC50) values of PVs were 0.65-1.08mLL(-1), and PV300 showed the strongest inhibitory effect...
September 8, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28949966/impact-of-salmonid-alphavirus-infection-in-diploid-and-triploid-atlantic-salmon-salmo-salar-l-fry
#7
Tharangani K Herath, Angela J Ashby, Nilantha S Jayasuriya, James E Bron, John F Taylor, Alexandra Adams, Randolph H Richards, Manfred Weidmann, Hugh W Ferguson, John B Taggart, Herve Migaud, Mark J Fordyce, Kim D Thompson
With increasing interest in the use of triploid salmon in commercial aquaculture, gaining an understanding of how economically important pathogens affect triploid stocks is important. To compare the susceptibility of diploid and triploid Atlantic salmon (Salmo salar L.) to viral pathogens, fry were experimentally infected with Salmonid alphavirus sub-type 1 (SAV1), the aetiological agent of pancreas disease (PD) affecting Atlantic salmon aquaculture in Europe. Three groups of fry were exposed to the virus via different routes of infection: intraperitoneal injection (IP), bath immersion, or cohabitation (co-hab) and untreated fry were used as a control group...
2017: PloS One
https://www.readbyqxmd.com/read/28934531/feasibility-and-emotional-impact-of-experimentally-extending-sleep-in-short-sleeping-adolescents
#8
Tori R Van Dyk, Nanhua Zhang, Perry A Catlin, Kaylin Cornist, Shealan McAlister, Catharine Whitacre, Dean W Beebe
Study Objectives: Published experimental sleep manipulation protocols for adolescents have been limited to the summer, limiting causal conclusions about how short sleep affects them on school nights, when they are most likely to restrict their sleep. This study assesses the feasibility and emotional impact of a school-night sleep manipulation protocol to test the effects of lengthening sleep in habitually short-sleeping adolescents. Methods: High school students aged 14-18 years who habitually slept 5-7 hours on school nights participated in a 5-week experimental sleep manipulation protocol...
September 1, 2017: Sleep
https://www.readbyqxmd.com/read/28922213/elastic-resistance-effectiveness-on-increasing-strength-of-shoulders-and-hips
#9
Kelsey J Picha, Muataz R Almaddah, Jordan Barker, Tavis Ciochetty, W Scott Black, Tim L Uhl
Elastic resistance is a common training method used to gain strength. Currently, progression with elastic resistance is based on the perceived exertion of the exercise or completion of targeted repetitions; exact resistance is typically unknown. This study's objective is to determine if knowledge of load during elastic resistance exercise will increase strength gains during exercises. Participants were randomized into two strength training groups, elastic resistance only and elastic resistance using a load cell (LC) that displays force during exercise...
September 12, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28890367/enhanced-anandamide-signaling-reduces-flight-behavior-elicited-by-an-approaching-robo-beetle
#10
Daniel E Heinz, Andreas Genewsky, Carsten T Wotjak
Our current knowledge of the implications of endocannabinoids in fear and anxiety is largely based on fear conditioning paradigms and approach-avoidance conflicts. Here we establish the ethobehavioral beetle mania task (BMT), which confronts mice with an erratically moving robo-beetle. With the help of this task we demonstrate decreased tolerance yet increased avoidance responses to an approaching beetle in high-anxiety behavior (HAB) and BALBc mice compared to C57BL/6N, CD1 and normal-anxiety behavior (NAB) mice...
September 7, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28873753/effect-of-the-fruit-position-on-the-cluster-on-fruit-quality-carotenoids-phenolics-and-sugars-in-cherry-tomatoes-solanum-lycopersicum-l
#11
Elena Coyago-Cruz, Mireia Corell, Alfonso Moriana, Dolores Hernanz, Carla M Stinco, Antonio J Meléndez-Martínez
Cherry tomato varieties are widely consumed in many countries. They contain nutrients and health-promoting compounds like phenolics and carotenoids. The main purpose of this study was to determine how the fruit position on the cluster affected quality parameters of diverse nature (weight, soluble solids, firmness, colour, carotenoids, phenolic compounds and sugars). For this purpose the fourth cluster of two cherry varieties (Summerbrix and Lazarino) were studied. The results indicated that the fruit position on the cluster decreased the fruit size between 14 and 16% and weight 40%; firmness in 'Lazarino' increased 56%; C*ab increased 12% in 'Lazarino' and decreased 13% in 'Summerbrix'; hab increased 9% in 'Summerbrix'...
October 2017: Food Research International
https://www.readbyqxmd.com/read/28860036/effect-of-chlorination-by-products-on-the-quantitation-of-microcystins-in-finished-drinking-water
#12
Laura Rosenblum, Alan Zaffiro, William A Adams, Steven C Wendelken
Microcystins are toxic peptides that can be produced by cyanobacteria in harmful algal blooms (HABs). Various analytical techniques have been developed to quantify microcystins in drinking water, including liquid chromatography tandem mass spectrometry (LC/MS/MS), enzyme linked immunosorbent assay (ELISA), and oxidative cleavage to produce 2-methyl-3-methoxy-4-phenylbutyric acid (MMPB) with detection by LC/MS/MS, the "MMPB method". Both the ELISA and MMPB methods quantify microcystins by detecting a portion of the molecule common to most microcystins...
November 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28858213/recreational-exposure-during-algal-bloom-in-carrasco-beach-uruguay-a-liver-failure-case-report
#13
Flavia Vidal, Daniela Sedan, Daniel D'Agostino, María Lorena Cavalieri, Eduardo Mullen, María Macarena Parot Varela, Cintia Flores, Josep Caixach, Dario Andrinolo
In January 2015, a 20-month-old child and her family took part in recreational activities at Carrasco and Malvín beaches (Montevideo, Uruguay). An intense harmful algae bloom (HAB) was developing along the coast at that time. A few hours after the last recreational exposure episode, the family suffered gastrointestinal symptoms which were self-limited except in the child's case, who was admitted to hospital in Uruguay with diarrhea, vomiting, fatigue, and jaundice. The patient had increased serum levels of liver enzymes and bilirubin and five days later presented acute liver failure...
August 31, 2017: Toxins
https://www.readbyqxmd.com/read/28833121/anthocyanins-of-jambol%C3%A3-o-syzygium-cumini-extraction-and-ph-dependent-color-changes
#14
Brenda de Nazaré do Carmo Brito, Rosinelson da Silva Pena, Alessandra Santos Lopes, Renan Campos Chisté
Jambolão fruits are promising sources of anthocyanins, and in this study, the jambolão fruit from the Brazilian Amazonian region was characterized and the efficiency of six ethanol-based solutions to extract anthocyanins was determined. Moreover, the color changes of anthocyanin extracts, as influenced by different pH conditions (pH from 1.0 to 8.0), were evaluated. The fruits exhibited high contents of total anthocyanins (296 mg/100 g) and the CIELAB parameters characterized jambolão as a purple-red colored fruit (a* = 20...
October 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28822256/addressing-harmful-algal-blooms-habs-impacts-with-ferrate-vi-simultaneous-removal-of-algal-cells-and-toxins-for-drinking-water-treatment
#15
Yang Deng, Meiyin Wu, Huiqin Zhang, Lei Zheng, Yaritza Acosta, Tsung-Ta D Hsu
Although ferrate(VI) has long been recognized as a multi-purpose treatment agent, previous investigations regarding ferrate(VI) for addressing harmful algal blooms (HABs) impacts in drinking water treatment only focused on a single HAB pollutant (e.g. algal cells or algal toxins). Moreover, the performance of ferrate(VI)-driven coagulation was poorly investigated in comparison with ferrate(VI) oxidation, though it has been widely acknowledged as a major ferrate(VI) treatment mechanism. We herein reported ferrate(VI) as an emerging agent for simultaneous and effective removal of algal cells and toxins in a simulated HAB-impacted water...
November 2017: Chemosphere
https://www.readbyqxmd.com/read/28813504/effect-of-co2-induced-seawater-acidification-on-growth-photosynthesis-and-inorganic-carbon-acquisition-of-the-harmful-bloom-forming-marine-microalga-karenia-mikimotoi
#16
Shunxin Hu, Bin Zhou, You Wang, Ying Wang, Xinxin Zhang, Yan Zhao, Xinyu Zhao, Xuexi Tang
Karenia mikimotoi is a widespread, toxic and non-calcifying dinoflagellate, which can release and produce ichthyotoxins and hemolytic toxins affecting the food web within the area of its bloom. Shifts in the physiological characteristics of K. mikimotoi due to CO2-induced seawater acidification could alter the occurrence, severity and impacts of harmful algal blooms (HABs). Here, we investigated the effects of elevated pCO2 on the physiology of K. mikimotoi. Using semi-continuous cultures under controlled laboratory conditions, growth, photosynthesis and inorganic carbon acquisition were determined over 4-6 week incubations at ambient (390ppmv) and elevated pCO2 levels (1000 ppmv and 2000 ppmv)...
2017: PloS One
https://www.readbyqxmd.com/read/28806552/exposure-of-engineered-nanoparticles-to-alexandrium-tamarense-dinophyceae-healthy-impacts-of-nanoparticles-via-toxin-producing-dinoflagellate
#17
Manlu Li, Daoyi Chen, Yang Liu, Chia Ying Chuang, Fanzhou Kong, Paul J Harrison, Xiaoshan Zhu, Yuelu Jiang
Human activities can enhance the frequency, intensity and occurrence of harmful algal blooms (HABs). Engineered nanoparticles (ENPs), contained in many materials, will inevitably enter coastal waters and thus cause unpredictable impacts on aquatic organisms. However, knowledge of the influence of ENPs on HAB species is still lacking. In this study, we examined the effects of titanium dioxide nanoparticles (nTiO2), zinc oxide nanoparticles (nZnO) and aluminum oxide nanoparticles (nAl2O3) on physiological changes and paralytic shellfish poisoning toxins (PSTs) production of Alexandrium tamarense...
January 1, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/28801171/microorganisms-based-methods-for-harmful-algal-blooms-control-a-review
#18
REVIEW
Rui Sun, Pengfei Sun, Jianhong Zhang, Sofia Esquivel-Elizondo, Yonghong Wu
Harmful algal blooms (HABs) are a worldwide problem with numerous negative effects on water systems, which have prompted researchers to study applicable measures to inhibit and control them. This review summarized the current microorganisms-based methods or technologies aimed at controlling HABs. Based on their characteristics, these methods can be divided into two categories: methods based on single-species microorganisms and methods based on microbial aggregates, and four types: methods for rapid decrease of algal cells density (e...
August 1, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28800687/the-profound-effect-of-harmful-cyanobacterial-blooms-from-food-web-and-management-perspectives
#19
Sigitas Šulčius, Danguolė Montvydienė, Hanna Mazur-Marzec, Jūratė Kasperovičienė, Rokas Rulevičius, Živilė Cibulskaitė
Sustainable and effective water management plans must have a reliable risk assessment strategies for harmful cyanobacterial blooms (HABs) that would enable timely decisions to be made, thus avoiding the trespassing of ecological thresholds, leading to the collapse of ecosystem structure and function. Such strategies are usually based on cyanobacterial biomass and/or on the monitoring of known toxins, which may, however, in many cases, under- or over-represent the actual toxicity of the HAB. Therefore, in this study, by the application of growth-inhibition assays using different bacteria, algae, zooplankton and fish species, we assessed the toxicological potential of two cyanobacterial blooms that differed in total cyanobacterial biomass, species composition and cyanopeptide profiles...
December 31, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28777959/fast-growing-algicidal-streptomyces-sp-u3-and-its-potential-in-harmful-algal-bloom-controls
#20
Xiaoqi Yu, Guanjing Cai, Hui Wang, Zhong Hu, Wei Zheng, Xueqian Lei, Xiaoying Zhu, Yao Chen, Qiuliang Chen, Hongyan Din, Hong Xu, Yun Tian, Lijun Fu, Tianling Zheng
To find the potential algicidal microorganisms and apply them to prevent and terminate harmful algal blooms (HABs), we isolated an actinomycete U3 from Mangrove, which had a potent algicidal effect on the harmful alga Heterosigma akashiwo. It could completely lyse the algal cells by producing active compounds, which were highly sensitive to high temperature and strong alkaline, but resistant to acid. One μg/mL of crude extract of the fermentation supernatant could kill 70% of H. akashiwo cells in 3 d. Unlike most of the other known algicidal Streptomyces, U3 showed strong ability of proliferation with the algal inclusion as the nutrient source...
June 23, 2017: Journal of Hazardous Materials
keyword
keyword
52184
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"