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https://www.readbyqxmd.com/read/28335414/inhibition-of-listeria-monocytogenes-on-ready-to-eat-meats-using-bacteriocin-mixtures-based-on-mode-of-action
#1
Paul Priyesh Vijayakumar, Peter M Muriana
Bacteriocin-producing (Bac⁺) lactic acid bacteria (LAB) comprising selected strains of Lactobacillus curvatus, Lactococcus lactis, Pediococcus acidilactici, and Enterococcus faecium and thailandicus were examined for inhibition of Listeria monocytogenes during hotdog challenge studies. The Bac⁺ strains, or their cell-free supernatants (CFS), were grouped according to mode-of-action (MOA) as determined from prior studies. Making a mixture of as many MOAs as possible is a practical way to obtain a potent natural antimicrobial mixture to address L...
March 14, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28332307/ethanol-concentration-in-56-refillable-electronic-cigarettes-liquid-formulations-determined-by-headspace-gas-chromatography-with-flame-ionization-detector-hs-gc-fid
#2
Justin L Poklis, Carl E Wolf, Michelle R Peace
Personal battery powered vaporizers or electronic cigarettes were developed as an alternative to traditional cigarettes. The modern electronic cigarettes were patented in 2004 by Hon Lik in China. In May 2016, the US Food and Drug Administration (FDA) imposed regulatory statutes on e-cigarettes and their liquid formulations (e-liquids); prior to that, they were unregulated. E-liquids are typically composed of propylene glycol and/or glycerin, flavoring component(s), and active ingredient(s), such as nicotine...
March 23, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28327996/genome-sequencing-of-the-sweetpotato-whitefly-bemsia-tabaci-med-q
#3
Wen Xie, Chunhai Chen, Zezhong Yang, Litao Guo, Xin Yang, Dan Wang, Ming Chen, Jinqun Huang, Yanan Wen, Yang Zeng, Yating Liu, Jixing Xia, Lixia Tian, Hongying Cui, Qingjun Wu, Shaoli Wang, Baoyun Xu, Xianchun Li, Xinqiu Tan, Murad Ghanim, Baoli Qiu, Huipeng Pan, Dong Chu, Helene Delatte, M N Maruthi, Feng Ge, Xueping Zhou, Xiaowei Wang, Fanghao Wan, Yuzhou Du, Chen Luo, Fengming Yan, Evan L Preisser, Xiaoguo Jiao, Brad S Coates, Jinyang Zhao, Qiang Gao, Jinquan Xia, Ye Yin, Yong Liu, Judith K Brown, Xuguo Joe Zhou, Youjun Zhang
Background: The sweetpotato whitefly Bemisia tabaci is a highly destructive agricultural and ornamental crop pest. It damages host plants through both phloem feeding and vectoring plant pathogens. Introductions of B. tabaci are difficult to quarantine and eradicate because of its high reproductive rates, broad host plant range, and insecticide resistance. Findings: A total of 791 Gb of raw DNA sequence from whole genome shotgun sequencing, and 13 BAC pooling libraries were generated by Illumina sequencing using different combinations of mate-pair and pair-end libraries...
March 15, 2017: GigaScience
https://www.readbyqxmd.com/read/28324645/three-dimensional-analysis-of-somatic-mitochondrial-dynamics-in-fission-deficient-injured-motor-neurons-using-fib-sem
#4
Hiromi Tamada, Sumiko Kiryu-Seo, Hiroki Hosokawa, Keisuke Ohta, Naotada Ishihara, Masatoshi Nomura, Katsuyoshi Mihara, Kei-Ichiro Nakamura, Hiroshi Kiyama
Mitochondria undergo morphological changes through fusion and fission for their quality control, which are vital for neuronal function. In this study, we examined three-dimensional morphologies of mitochondria in motor neurons under normal, nerve injured, and nerve injured plus fission-impaired conditions using the focused ion beam/scanning electron microscopy (FIB/SEM), because the FIB/SEM technology is a powerful tool to demonstrate both 3D images of whole organelle and the intra-organellar structure simultaneously...
March 21, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28323099/nanohydrogel-with-n-n-bis-acryloyl-cystine-crosslinker-for-high-drug-loading
#5
Marcin Mackiewicz, Jan Romanski, Ewa Drozd, Beata Gruber-Bzura, Piotr Fiedor, Zbigniew Stojek, Marcin Karbarz
Substantially improved hydrogel particles based on poly(N-isopropylacrylamide) (pNIPA) have been obtained. First, as a result of replacing commercially available N,N'-bis(acryloyl)cystamine (BAC), the crosslinker, with acryloyl derivative of cystine containing a carboxylic group (BISS), the hydrogel particles acquired improved stability vs. ionic strength and allowed further chemical modification of the chains, including the attachment of drug molecules. Next, a redox-initiated aqueous precipitation polymerization via the semi-batch method was used...
March 18, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28321584/antimicrobial-efficacy-and-mechanical-properties-of-bac-modified-hard-and-soft-denture-liners
#6
Pinar Altinci, Murat Mutluay, Eva Söderling, Arzu Tezvergil-Mutluay
This study investigated the antimicrobial efficacy and mechanical strength of hard and soft denture liners modified with benzalkonium chloride (BAC). The specimens (1 mm thickness, 8 mm diameter) were prepared by mixing 0.5, 1, 2 and 5 wt% BAC with soft (Sofreliner Medium, Tokuyama) and hard (Rebase II, Tokuyama) denture liners (n = 5/group). BAC was not added to the controls. Candida albicans ATCC 28366 (A 550 = 0.5) and Streptococcus mutans Ingbritt suspensions (A 550 = 0.35) were pipetted onto the specimens, and incubated for 4 h...
March 20, 2017: Odontology
https://www.readbyqxmd.com/read/28320524/seasonally-related-effects-on-natural-organic-matter-characteristics-from-source-to-tap-in-korea
#7
S H So, I H Choi, H C Kim, S K Maeng
In this study, natural organic matter (NOM) characteristics were investigated over three years of monthly monitoring to determine the effect of seasonal variations on NOM levels from source to tap. Liquid chromatography with organic carbon detection (LC-OCD) was used to determine NOM characteristics and the level of reduction of biodegradable dissolved organic carbon (BDOC). The average dissolved organic matter concentration in the source water (Lake Paldang, Korea) was not significantly different between summer and winter...
March 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28317906/novel-hypophysiotropic-agrp2-neurons-and-pineal-cells-revealed-by-bac-transgenesis-in-zebrafish
#8
Inbal Shainer, Adi Buchshtab, Thomas A Hawkins, Stephen W Wilson, Roger D Cone, Yoav Gothilf
The neuropeptide agouti-related protein (AgRP) is expressed in the arcuate nucleus of the mammalian hypothalamus and plays a key role in regulating food consumption and energy homeostasis. Fish express two agrp genes in the brain: agrp1, considered functionally homologous with the mammalian AgRP, and agrp2. The role of agrp2 and its relationship to agrp1 are not fully understood. Utilizing BAC transgenesis, we generated transgenic zebrafish in which agrp1- and agrp2-expressing cells can be visualized and manipulated...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28317365/-promotion-of-porphyromonas-gingivalis-to-viral-disease
#9
Meng Tiantian, Li Xin
Chronic periodontitis is one of the most common oral diseases in humans, the main recognized pathogenic bac-terium of which is the Porphyromonas gingivalis. Various types of viruses have been detected in periodontal disease in situ, and the joint action of viral and bacterial pathogens infection mechanism are complicated. Porphyromonas gingivalis has the characteristics resulting from the interaction with a variety of bacterium viruses, which may be the reason for chronic perio-dontitis being a protracted disease associated with a variety of systemic diseases...
August 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28301551/development-of-the-full-length-cdna-clones-of-two-porcine-epidemic-diarrhea-disease-virus-isolates-with-different-virulence
#10
Jie Li, Zhonghui Jin, Yueyi Gao, Lei Zhou, Xinna Ge, Xin Guo, Jun Han, Hanchun Yang
The recently emerged highly virulent variants of porcine epidemic and diarrhea virus (PEDV) remain a huge threat to the worldwide swine industry. Here, we describe the development of a bacterial artificial chromosome (BAC) reverse genetics system for PEDV based on two recent Chinese field isolates, namely CHM2013 and BJ2011C. Phylogenetically, CHM2013 is closely related to the vaccine strain SM98 whereas the isolate BJ2011C belongs to the GIIb group, a cluster that contains many recent pandemic strains. The full-length cDNA clones of the two isolates were constructed into BAC under the control of CMV promoter...
2017: PloS One
https://www.readbyqxmd.com/read/28301231/evaluation-and-identification-of-marek-s-disease-virus-bac-clones-as-standardized-reagents-for-research
#11
John R Dunn, Sanjay M Reddy, Masahiro Niikura, Venugopal Nair, Janet E Fulton, Hans H Cheng
Marek's disease virus (MDV) is an alphaherpesvirus that causes Marek's disease (MD), a lymphoproliferative disease in chickens. Understanding of MDV gene function advanced significantly following the cloning of the MDV genome as either a series of overlapping cosmids or as a bacterial artificial chromosome (BAC), both of which could produce viable MDV. The objectives of this study were to compare multiple virulent MDV BAC clones using the Avian Disease and Oncology Laboratory's pathotyping assay, and to demonstrate the use of these clones as standardized reagents for a modified pathotyping assay by other laboratories...
March 2017: Avian Diseases
https://www.readbyqxmd.com/read/28295891/molecular-serotyping-virulence-gene-profiling-and-pathogenicity-of-streptococcus-agalactiae-isolated-from-tilapia-farms-in-thailand-by-multiplex-pcr
#12
Korntip Kannika, Duangjai Pisuttharachai, Prapansak Srisapoome, Janenuj Wongtavatchai, Hidehiro Kondo, Ikuo Hirono, Sasimanas Unajak, Nontawith Areechon
AIMS: This study aimed to biotype Streptococcus agalactiae isolated from tilapia farms in Thailand based on molecular biotyping methods and to determine the correlation between the serotype and virulence of bacteria. In addition to a biotyping (serotyping) technique based on multiplex PCR of cps genes, in this study, we developed multiplex PCR typing of Group B streptococcus (GBS) virulence genes to examine 3 clusters of virulence genes and their correlation to the pathogenicity of S...
March 13, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28294477/identifying-neurocognitive-markers-for-outcome-prediction-of-global-functioning-in-ultra-high-risk-for-psychosis-and-first-episode-psychosis
#13
Kingo Sawada, Akiko Kanehara, Satoshi Eguchi, Mariko Tada, Yoshihiro Satomura, Motomu Suga, Shinsuke Koike, Kiyoto Kasai
AIM: There is an increasing need for identifying neurocognitive predictors of global functional outcome in early psychosis toward optimizing early intervention strategy. METHODS: We conducted a longitudinal observational study to investigate an association between neurocognitive assessments at baseline and global functional outcome at an average of one-year follow-up. Participants included ultra-high-risk for psychosis (UHR) individuals who had not converted to psychosis during the follow-up period (UHR-NP), and those with first-episode psychosis (FEP) individuals...
March 14, 2017: Psychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/28289379/dichotomous-distribution-of-putative-cholinergic-interneurons-in-mouse-accessory-olfactory-bulb
#14
Sarah Marking, Kurt Krosnowski, Tatsuya Ogura, Weihong Lin
Sensory information processing in the olfactory bulb (OB) relies on diverse populations of bulbar interneurons. In rodents, the accessory OB (AOB) is divided into two bulbar regions, the anterior (aAOB) and posterior (pAOB), which differ substantially in their circuitry connections and associated behaviors. We previously identified and characterized a large number of morphologically diverse cholinergic interneurons in the main OB (MOB) using transgenic mice to visualize the cell bodies of choline acetyltransferase (ChAT-expressing neurons and immunolabeling (Krosnowski et al...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28288368/impact-of-acute-alcohol-consumption-on-lethality-of-suicide-methods
#15
C Hyung Keun Park, Seong Ho Yoo, Jaewon Lee, Sung Joon Cho, Min-Sup Shin, Eun Young Kim, Se Hyun Kim, Keunsoo Ham, Yong Min Ahn
BACKGROUND: The influence of acute alcohol consumption on the factors related to suicide remains understudied. Thus, the present study investigated the relationship between blood alcohol content (BAC) and the lethality of suicide methods. METHODS: Autopsy data on 315 South Korean suicide completers with a positive BAC were collected from a nationwide pool between May 2015 and November 2015, and the methods were dichotomised as suicide methods of low lethality (SMLL; drug/chemical overdose and sharp objects, n=67) and suicide methods of high lethality (SMHL; everything else, n=243)...
March 2, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28284135/sorption-and-leaching-of-benzalkonium-chlorides-in-agricultural-soils
#16
Adnan Hossain Khan, Sheila M Macfie, Madhumita B Ray
The adsorption and leaching characteristics of two commonly used benzalkonium chlorides (BACs), benzyl dimethyl dodecyl ammonium chloride (BDDA) and benzyl dimethyl tetradecyl ammonium chloride (BDTA) using three agricultural soils with varied proportions of silt, sand, clay, and organic matter were determined. BACs are cationic surfactants used in large quantities for sanitary and personal care products and are abundant in environmental samples. Adsorption isotherm data (aqueous concentration in the range of 25-150 mg L(-1)) fitted the Langmuir model better than the Freundlich model...
March 8, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28283933/designing-of-a-recombinant-agip-bacmid-construct-with-infectious-properties-against-black-cutworm-agrotis-ipsilon-larvae
#17
Naglaa A Abdallah, Wael El-Menofy, Abdelhadi Abdallah Abdelhadi
In this study, Agrotis ipsilon nucleopolyhedrovirus bacmid has been constructed as an infectious bacmid in an attempt to allow genome recombination and generation of virus mutants. Since the FseI, a unique restriction site, is located in a viral coding region (ORF_119), PCR was performed to partially amplify the ORF_119 fragment containing the FseI site to facilitate the bacmid construction in a proper way without interrupting the ORF expression. Construction with repeated fragments at the end of the cloned viral was carried out in an attempt to facilitate circulation during infection in insect cells...
March 10, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28279933/in-situ-biodegradable-crosslinking-of-cationic-oligomer-coating-on-mesoporous-silica-nanoparticles-for-drug-delivery
#18
Yifeng Wang, Jine Wang, Yang Yang, Yi Sun, Yuan Yuan, Yulin Li, Changsheng Liu
Although layer-by-layer assembly using anionic and cationic polymer has been a popular way to develop core-shell nanoparticles, the strong electrostatic interactions may limit shell degradability, thus hampering their application as a platform for controlled therapeutic delivery. In this study, we demonstrate a simple approach to developing mesoporous nanohybrids via a process of pre-drug loading (using doxorubicin (DOX) as a model drug) into mesoporous silica nanoparticles (MSN), followed by surface functionalization with a kind of cationic oligomer (low molecular weight polyethylene imine, LPEI) and in situ crosslinking by degradable N,N'-bis(acryloyl)cystamine (BAC)...
February 27, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28277803/a-systematic-review-of-the-evidence-for-acute-tolerance-to-alcohol-the-mellanby-effect
#19
Michael G Holland, Robin E Ferner
OBJECTIVE: To review the evidence for "the Mellanby effect", that is, whether the response to a given blood alcohol concentration (BAC) is more marked when BAC is rising than at the same concentration when BAC is falling. METHODS: We systematically searched the databases EMBASE, Medline, and Scopus up to and including December 2016 using text words "tolerance", "ascending", "descending" or "Mellanby" with Medline term "exp *alcohol/" or "exp *drinking behavior/" or equivalent...
March 9, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28274190/evaluating-the-biosafety-of-conventional-and-o3-bac-process-and-its-relationship-with-nom-characteristics
#20
Xiaobin Liao, Rusen Zou, Chao Chen, Baoling Yuan, Zhenming Zhou, Xiaojian Zhang
It is the priority to guarantee biosafety for drinking water treatment. The objective of this study was to evaluate the impact of widely applied conventional and ozone-biological activated carbon (O3-BAC) advanced treatment technology on biosafety of drinking water. The items, including assimilable organic carbon (AOC), biodegradable dissolved organic carbon (BDOC), heterotrophic plate counts (HPCs) and the microorganism community structures, were used to evaluate the biosafety. Moreover, their relationships with molecular weights (MWs) and fluorescence intensity of dissolved organic matter were investigated...
March 8, 2017: Environmental Technology
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