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https://www.readbyqxmd.com/read/28651325/design-of-marine-macroalgae-photobioreactor-integrated-into-building-to-support-seagriculture-for-biorefinery-and-bioeconomy
#1
Alexander Chemodanov, Arthur Robin, Alexander Golberg
Seagriculture, which can provide offshore grown macroalgae biomass would play a significant role in bioeconomy. Nevertheless, seagriculture development has been hindered by the lack of laboratory photobioreactors that enable fundamental and pilot scale macroalgae research. In this work, a macroalgae photobioreactor (MPBR) was developed and integrated into the building. The MPBR operation was demonstrated for 6months with cultivation of Cladophora sp., Ulva compressa and Ulva rigida green macroalgae species isolated from 3 sites at the Eastern Mediterranean coast...
June 13, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28651317/effects-of-multi-environmental-factors-on-physiological-and-biochemical-responses-of-large-yellow-croaker-larimichthys-crocea
#2
Qian-Feng Wang, Wei-Liang Shen, Cheng Liu, Dan-Li Mu, Xiong-Fei Wu, Nian-Gang Guo, Jun-Quan Zhu
Land-based recirculating aquaculture systems (RAS) and cage culture are important methods of Larimichthys crocea production. The effects of environmental factors on physiological and biochemical aspects of L. crocea require clarification. Temperature and salinity are controlled in RAS and directly affect L. crocea growth and survival. To explore optimal parameters, the oxygen consumption rate (RO), ammonium excretion rate (RN), and O/N ratio at different temperatures (8, 14, 20, 26, and 32 °C) and salinities (5, 15, 25, and 35‰) were determined...
June 13, 2017: Chemosphere
https://www.readbyqxmd.com/read/28651153/the-role-of-marijuana-use-disorder-in-predicting-emergency-department-and-inpatient-encounters-a-retrospective-cohort-study
#3
Cynthia I Campbell, Amber L Bahorik, Andrea H Kline-Simon, Derek D Satre
BACKGROUND: Marijuana use disorder (MUD) is the most common illegal drug use disorder and its prevalence is increasing. It is associated with psychiatric and medical problems, but little is known about its impact on emergency department (ED) and inpatient utilization rates. DESIGN: In a retrospective cohort design, we used electronic health record (EHR) data to identify patients with MUD (n=2752) and demographically matched patients without MUD (n=2752) in 2010...
June 10, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28651144/improved-anticancer-effects-of-albumin-bound-paclitaxel-nanoparticle-via-augmentation-of-epr-effect-and-albumin-protein-interactions-using-s-nitrosated-human-serum-albumin-dimer
#4
Ryo Kinoshita, Yu Ishima, Victor T G Chuang, Hideaki Nakamura, Jun Fang, Hiroshi Watanabe, Taro Shimizu, Keiichiro Okuhira, Tatsuhiro Ishida, Hiroshi Maeda, Masaki Otagiri, Toru Maruyama
In the latest trend of anticancer chemotherapy research, there were many macromolecular anticancer drugs developed based on enhanced permeability and retention (EPR) effect, such as albumin bound paclitaxel nanoparticle (nab- PTX, also called Abraxane(®)). However, cancers with low vascular permeability posed a challenge for these EPR based therapeutic systems. Augmenting the intrinsic EPR effect with an intrinsic vascular modulator such as nitric oxide (NO) could be a promising strategy. S-nitrosated human serum albumin dimer (SNO-HSA Dimer) shown promising activity previously was evaluated for the synergistic effect when used as a pretreatment agent in nab-PTX therapy against various tumor models...
June 22, 2017: Biomaterials
https://www.readbyqxmd.com/read/28651134/effect-of-salt-type-and-concentration-on-the-growth-and-lipid-content-of-chlorella-vulgaris-in-synthetic-saline-wastewater-for-biofuel-production
#5
Jared Church, Jae-Hoon Hwang, Keug-Tae Kim, Rebecca McLean, You-Kwan Oh, Bora Nam, Jin Chul Joo, Woo Hyoung Lee
Microalgae can offer several benefits for wastewater treatment with their ability to produce large amounts of lipids for biofuel production and the high economic value of harvested biomass for biogas and fertilizer. This study found that salt concentration (∼45gL(-1)) had more of an effect than salt type on metabolisms of Chlorella vulgaris for wastewater treatment and biofuel production. Salinity stress decreased the algal growth rate in wastewater by 0.003day(-1)permScm(-1) and slightly reduced nutrient removal rates...
June 17, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28651104/autophagy-is-an-important-event-for-low-dose-cytarabine-treatment-in-acute-myeloid-leukemia-cells
#6
Liyun Chen, Pei Guo, Yunxiang Zhang, Xiaoyang Li, Peimin Jia, Jianhua Tong, Junmin Li
Cytarabine (Ara-c) has been an important agent in acute myeloid leukemia (AML) treatment for more than 40 years. While, the mechanisms underlying low dose cytarabine (LD Ara-c) is poorly understood. In this study, we investigated the therapeutic effect of LD Ara-C in vitro. U937 and HEL cell lines were treated with increasing dose of Ara-C and showed growth inhibition rates in a time and dose-dependent manner. Treatment with LD Ara-C (50nM) induced a time-dependent increase in expression of microtubule-associated protein light chain 3 (LC3) and beclin1, but degradation of sequestosome1 (p62) in both U937 and HEL cells...
June 16, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28651044/the-atmospheric-fate-of-monoethanolamine-enhancing-new-particle-formation-of-sulfuric-acid-as-an-important-removal-process
#7
Hong-Bin Xie, Jonas Elm, Roope Halonen, Nanna Myllys, Theo Kurtén, Markku Kulmala, Hanna Vehkamaki
Monoethanolamine (MEA), a potential atmospheric pollutant from capture unit of a leading CO2 capture technology, could be removed by participating H2SO4-based new particle formation (NPF) as simple amines. Here we evaluated the enhancing potential of MEA on H2SO4-based NPF by examining the formation of molecular clusters of MEA and H2SO4 using a combined quantum chemistry calculations and kinetics modeling. The results indicate that MEA at ppt-level can enhance H2SO4-based NPF. The enhancing potential of MEA is < dimethylamine (DMA), one of the strongest enhancing agents, and ≫ methylamine (MA), in contrast to the order suggested solely by their basicity (MEA < MA < DMA)...
June 26, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28650990/identification-of-soil-p-fractions-that-are-associated-with-p-loss-from-surface-runoff-under-various-cropping-systems-and-fertilizer-rates-on-sloped-farmland
#8
Xinghua Li, Baona Wang, Tewu Yang, Duanwei Zhu, Zhongnan Nie, Junchi Xu
Soil phosphorus (P) fractions and runoff P concentration were measured to understand the fate of soil P entering surface runoff water during summer cropping season of different double cropping systems under two fertilizer regimes. The dominant form of runoff P was particulate P (PP). Runoff total P (TP) was higher at the vegetative growth stage and lower at the crop reproductive stage. TP and PP were derived mainly from soil Olsen-P, Al-P and Fe-P and amounts increased with sediment content in runoff water...
2017: PloS One
https://www.readbyqxmd.com/read/28650803/challenges-in-improving-cochlear-implant-performance-and-accessibility
#9
Fan-Gang Zeng
Here I identify two gaps in cochlear implants that have been limiting their performance and acceptance. First, cochlear implant performance has remained largely unchanged, despite the number of publications tripling per decade in the last 30 years. Little has been done so far to address a fundamental limitation in the electrode-to-neuron interface, with the electrode size being a thousand times larger than the neuron diameter while the number of electrodes being a thousand times less. Both the small number and the large size of electrodes produce broad spatial activation and poor pitch resolution that limit current cochlear implant performance...
June 22, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28650783/conservative-treatment-of-multiple-keratocystic-odontogenic-tumors-in-a-young-patient-with-nevoid-basal-cell-carcinoma-syndrome-by-decompression-a-7-year-follow-up-study
#10
Su-Hyun Kim, Min-Seok Oh, Yo-Seob Seo, Jin-Young Kim, Soon-Hyeun Nam, Su-Min Lim
Multiple keratocystic odontogenic tumors (KCOT) occurred in a young child is challenging problem in the field of pediatric dentistry, and might have been related to nevoid basal cell carcinoma syndrome (NBCCS). Because of high recurrence rate of KCOTs, complete surgical resection is generally accepted as definitive treatment. However, complete surgical resection could induce negative effect on the development of permanent teeth and growth of jaw. Herein, we reported successful treatment case of young KCOT patient with NBCCS...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28650557/association-between-metformin-prescription-and-growth-rates-of-abdominal-aortic-aneurysms
#11
J Golledge, J Moxon, J Pinchbeck, G Anderson, S Rowbotham, J Jenkins, M Bourke, B Bourke, A Dear, T Buckenham, R Jones, P E Norman
BACKGROUND: It has been suggested that diabetes medications, such as metformin, may have effects that inhibit abdominal aortic aneurysm (AAA) growth. The aim of this study was to examine the association of diabetes treatments with AAA growth in three patient cohorts. METHODS: AAA growth was studied using ultrasound surveillance in cohort 1, repeated CT in cohort 2 and more detailed repeat CT in cohort 3. Growth was estimated by the mean annual increase in maximum AAA diameter...
June 26, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28650441/neutrophil-mediated-anticancer-drug-delivery-for-suppression-of-postoperative-malignant-glioma-recurrence
#12
Jingwei Xue, Zekai Zhao, Lei Zhang, Lingjing Xue, Shiyang Shen, Yajing Wen, Zhuoyuan Wei, Lu Wang, Lingyi Kong, Hongbin Sun, Qineng Ping, Ran Mo, Can Zhang
Cell-mediated drug-delivery systems have received considerable attention for their enhanced therapeutic specificity and efficacy in cancer treatment. Neutrophils (NEs), the most abundant type of immune cells, are known to penetrate inflamed brain tumours. Here we show that NEs carrying liposomes that contain paclitaxel (PTX) can penetrate the brain and suppress the recurrence of glioma in mice whose tumour has been resected surgically. Inflammatory factors released after tumour resection guide the movement of the NEs into the inflamed brain...
June 19, 2017: Nature Nanotechnology
https://www.readbyqxmd.com/read/28650409/platelet-rich-fibrin-accelerates-skin-wound-healing-in-diabetic-mice
#13
Yinjia Ding, Lei Cui, Qiming Zhao, Weiqiang Zhang, Huafeng Sun, Lijun Zheng
Diabetic foot ulcers (DFUs) are associated with an increased risk of secondary infection and amputation. Platelet-rich fibrin (PRF), a platelet and leukocyte concentrate containing several cytokines and growth factors, is known to promote wound healing. However, the effect of PRF on diabetic wound healing has not been adequately investigated. The aim of the study was to investigate the effect of PRF on skin wound healing in a diabetic mouse model. Platelet-rich fibrin was prepared from whole blood of 8 healthy volunteers...
June 23, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28649958/modeling-mechanical-interactions-in-growing-populations-of-rod-shaped-bacteria
#14
James Winkle, Oleg A Igoshin, Matthew Bennett, Kreso Josic, William Ott
Advances in synthetic biology allow us to engineer bacterial collectives with pre-specified characteristics. However, the behavior of these collectives is difficult to understand, as cellular growth and division as well as extra-cellular fluid flow lead to complex, changing arrangements of cells within the population. To rationally engineer and control the behavior of cell collectives we need theoretical and computational tools to understand their emergent spatiotemporal dynamics. Here, we present an agent-based model that allows growing cells to detect and respond to mechanical interactions...
June 26, 2017: Physical Biology
https://www.readbyqxmd.com/read/28649441/clinical-responses-to-erk-inhibition-in-braf-v600e-mutant-colorectal-cancer-predicted-using-a-computational-model
#15
Daniel C Kirouac, Gabriele Schaefer, Jocelyn Chan, Mark Merchant, Christine Orr, Shih-Min A Huang, John Moffat, Lichuan Liu, Kapil Gadkar, Saroja Ramanujan
Approximately 10% of colorectal cancers harbor BRAF(V600E) mutations, which constitutively activate the MAPK signaling pathway. We sought to determine whether ERK inhibitor (GDC-0994)-containing regimens may be of clinical benefit to these patients based on data from in vitro (cell line) and in vivo (cell- and patient-derived xenograft) studies of cetuximab (EGFR), vemurafenib (BRAF), cobimetinib (MEK), and GDC-0994 (ERK) combinations. Preclinical data was used to develop a mechanism-based computational model linking cell surface receptor (EGFR) activation, the MAPK signaling pathway, and tumor growth...
2017: NPJ Systems Biology and Applications
https://www.readbyqxmd.com/read/28649341/costly-defense-in-a-fluctuating-environment-sensitivity-of-annual-nothobranchius-fishes-to-predator-kairomones
#16
Matej Polačik, Michal Janáč
Antipredator strategies increase the chances of survival of prey species but are subject to trade-offs and always come at a cost, one specific category being the "missed opportunity." Some animals that can modulate the timing of life-cycle events can also desynchronize this timing with the occurrence of a predator. In an unpredictable environment, such a modification may result in a mismatch with prevailing conditions, consequently leading to reproductive failure. In eastern Africa, temporary pools existing only during the rainy season are inhabited by annual fish of the genus Nothobranchius...
June 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28649339/conservation-of-wildlife-populations-factoring-in-incremental-disturbance
#17
Abbie Stewart, Petr E Komers
Progressive anthropogenic disturbance can alter ecosystem organization potentially causing shifts from one stable state to another. This potential for ecosystem shifts must be considered when establishing targets and objectives for conservation. We ask whether a predator-prey system response to incremental anthropogenic disturbance might shift along a disturbance gradient and, if it does, whether any disturbance thresholds are evident for this system. Development of linear corridors in forested areas increases wolf predation effectiveness, while high density of development provides a safe-haven for their prey...
June 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28649330/dual-tracer-based-isotope-turnover-rates-in-a-highly-invasive-mysid-limnomysis-benedeni-from-lake-constance
#18
Elizabeth Yohannes, Karl-Otto Rothhaupt
Understanding the ecological patterns of invasive species and their habitats require an understanding of the species' foraging ecology. Stable carbon (δ(13)C) and nitrogen (δ(15)N) isotope values provide useful information into the study of animal ecology and evolution, since the isotope ratios of consumers reflect consumer's dietary patterns. Nevertheless, the lack of species- and element-specific laboratory-derived turnover rates could limit their application. Using a laboratory-based dual stable isotope tracer approach (Na(15) NO 3 and NaH(13) CO 3), we evaluated the δ(15)N and δ(13)C isotope turnover rates in full-grown adult invasive Limnomysis benedeni from Lake Constance...
June 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28649322/similarity-of-plant-functional-traits-and-aggregation-pattern-in-a-subtropical-forest
#19
Bo Zhang, Xiaozhen Lu, Jiang Jiang, Donald L DeAngelis, Zhiyuan Fu, Jinchi Zhang
The distribution of species and communities in relation to environmental heterogeneity is a central focus in ecology. Co-occurrence of species with similar functional traits is an indication that communities are determined in part by environmental filters. However, few studies have been designed to test how functional traits are selectively filtered by environmental conditions at local scales. Exploring the relationship between soil characteristics and plant traits is a step toward understanding the filtering hypothesis in determining plant distribution at local scale...
June 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28649248/a-combination-of-podophyllotoxin-and-rutin-alleviates-radiation-induced-pneumonitis-and-fibrosis-through-modulation-of-lung-inflammation-in-mice
#20
Savita Verma, Bhargab Kalita, Sania Bajaj, Hridayesh Prakash, Ajay Kumar Singh, Manju Lata Gupta
Pneumonitis and pulmonary fibrosis are predominant consequences of radiation exposure, whether planned or accidental. The present study, demonstrates radioprotective potential of a formulation, prepared by combining podophyllotoxin and rutin (G-003M), in mice exposed to 11 Gy thoracic gamma radiation (TGR). Treated mice were observed for survival and other symptomatic features. Formation of reactive oxygen species (ROS)/nitric oxide (NO) was measured in bronchoalveolar lavage cells. DNA damage and cell death were assessed in alveolar cells by terminal deoxynucleotidyl transferase dUTP nick-end labeling assay...
2017: Frontiers in Immunology
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