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https://www.readbyqxmd.com/read/28918317/bithionol-residue-analysis-in-animal-derived-food-products-by-an-effective-and-rugged-extraction-method-coupled-with-liquid-chromatography-tandem-mass-spectrometry
#1
Weijia Zheng, Jin-A Park, A M Abd El-Aty, Seong-Kwan Kim, Sang-Hyun Cho, Jeong-Min Choi, Hee Yi, Soo-Min Cho, H A El-Banna, Jae-Han Shim, Byung-Joon Chang, Jing Wang, Jin-Suk Kim, Ho-Chul Shin
Herein, we developed a simple analytical procedure for the quantitation of bithionol residues in animal-derived food products such as porcine muscle, eggs, milk, eel, flatfish, and shrimp using a modified quick, easy, cheap, effective, rugged, and safe (QuEChERS) extraction method coupled with liquid chromatography-electrospray ionization tandem mass spectrometry (LC-ESI(+)/MS-MS). Samples were extracted with 0.1% solution of formic acid in acetonitrile and the extract was purified using a C18 sorbent. Separation was performed on a Waters XBridge™ C18 reversed-phase analytical column using 0...
August 31, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28917670/morphological-characterization-and-biocontrol-effects-of-vibrio-vulnificus-phages-against-vibriosis-in-the-shrimp-aquaculture-environment
#2
P Srinivasan, P Ramasamy
The re-emerging field of phage therapy is the potential biocontrol agents for the transfer of virulence factor and to kill their bacterial hosts. In this study, the lytic Vibrio vulnificus phages were studied to provide a better understanding of phage-host interactions and development of phage therapy. Four new V. vulnificus phages were detected from shrimp aquaculture system, named VV1, VV2, VV3 and VV4. All lytic V. vulnificus phages are the Tecviruses of the family Tectiviridae with typical double layered elongated icosahedral head and tailless morphology...
September 13, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28916357/myeloid-leukemia-factor-functions-in-anti-wssv-immune-reaction-of-kuruma-shrimp-marsupenaeus-japonicus
#3
Xiao-Wu Feng, Li-Jie Huo, Jie-Jie Sun, Ji-Dong Xu, Guo-Juan Niu, Jin-Xing Wang, Xiu-Zhen Shi
Myeloid leukemia factor (MLF) plays an important role in development, cell cycle, myeloid differentiation, and regulates the RUNX transcription factors. However, the function of MLF in immunity is still unclear. In this study, an MLF was identified and characterized in kuruma shrimp Marsupenaeus japonicus, and named as MjMLF. The full-length cDNA of MjMLF contained 1111 nucleotides, which had an opening reading frame of 816 bp encoding a protein of 272 amino acids with an MLF1-interacting protein domain. MjMLF could be ubiquitously detected in different tissues of shrimp at the transcriptional level...
September 12, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28915415/transcriptomic-analysis-of-the-hepatopancreas-induced-by-eyestalk-ablation-in-shrimp-litopenaeus-vannamei
#4
Ji-Hyun Lee, Indyaswan T Suryaningtyas, Tae-Ho Yoon, Jeong Min Shim, Hyun Park, Hyun-Woo Kim
Although eyestalk ablation (ESA) is currently considered the most effective method to facilitate molting and maturation, its physiological responses are still not clearly explained in decapod crustaceans. In this study, we analyzed the hepatopancreatic transcriptomes of Litopenaeus vannamei after ESA using the Illumina Miseq platform. After screening 53,029 contigs with high cutoff values (fold change>|10|; P-value<0.05; RPKM>1), we were able to identify 105 differentially expressed genes (DEGs), of which 100 were up-regulated and five were down-regulated...
September 8, 2017: Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics
https://www.readbyqxmd.com/read/28913993/a-retrospective-study-of-korean-adults-with-food-allergy-differences-in-phenotypes-and-causes
#5
So Hee Lee, Ga Young Ban, Kyunguk Jeong, Yoo Seob Shin, Hae Sim Park, Sooyoung Lee, Young Min Ye
PURPOSE: Increasing in prevalence, food allergy (FA) is becoming an important public health concern. In Korean adults, however, clinical phenotypes and causes of FA have not been studied. We aimed to study common causative allergens and clinical manifestations of FA in Korean adults. METHODS: This study was conducted as a retrospective review of medical records for 95 patients (≥19 years old) diagnosed with FA from September 2014 to August 2015 at a single university hospital...
November 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28910945/-nested-case-control-study-on-associated-factors-for-anemia-during-pregnancy
#6
C L Fan, J Y Luo, W J Gong, X Q Liu, S J Zhou, F F Zhang, J Zeng, H X Li, N Feng
Objective: To explore the related factors of anemia during pregnancy and provide scientific evidence for the primary prevention of anemia during pregnancy. Methods: The pregnant women (≤12 pregnant weeks) who received the first pregnancy care in a local medical institution in Hunan province from June 2013 to November 2014 were included in this cohort study, and for them anemia had been excluded by physical examination. Baseline survey and follow up till childbirth were conducted for them. A queue-based nested case-control study (1 ∶ 2) was conducted (380 pregnant women with anemia detected in this study as case group, 760 pregnant women without anemia randomly selected and matched by age, habitual residence during pregnancy as control group...
September 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28901801/screening-of-some-biological-activities-of-alyssum-fulvescens-var-fulvescens-known-as-ege-madwort
#7
Cennet Ozay, Ramazan Mammadov
In this research, the phenolic composition, antioxidant, antibacterial and cytotoxic activities of the methanolic extracts obtained from Alyssum fulvescens var. fulvescens aerial parts known as Ege kuduzotu in western Turkey, were firstly investigated. The antioxidant activity of the extract was determined by DPPH, metal chelating, phosphomolybdenum, β-carotene/linoleic acid and ferric reducing power assays. Moreover, total phenolic and flavonoid contents in the extract were investigated. The brine shrimp (Artemia salina L...
September 2017: Acta Biologica Hungarica
https://www.readbyqxmd.com/read/28900024/metabolic-roles-of-uncultivated-bacterioplankton-lineages-in-the-northern-gulf-of-mexico-dead-zone
#8
J Cameron Thrash, Kiley W Seitz, Brett J Baker, Ben Temperton, Lauren E Gillies, Nancy N Rabalais, Bernard Henrissat, Olivia U Mason
Marine regions that have seasonal to long-term low dissolved oxygen (DO) concentrations, sometimes called "dead zones," are increasing in number and severity around the globe with deleterious effects on ecology and economics. One of the largest of these coastal dead zones occurs on the continental shelf of the northern Gulf of Mexico (nGOM), which results from eutrophication-enhanced bacterioplankton respiration and strong seasonal stratification. Previous research in this dead zone revealed the presence of multiple cosmopolitan bacterioplankton lineages that have eluded cultivation, and thus their metabolic roles in this ecosystem remain unknown...
September 12, 2017: MBio
https://www.readbyqxmd.com/read/28899645/transcriptome-based-discovery-of-pathways-and-genes-related-to-reproduction-of-the-black-tiger-shrimp-penaeus-monodon
#9
Tanaporn Uengwetwanit, Pattareeya Ponza, Duangjai Sangsrakru, Duangdao Wichadakul, Supawadee Ingsriswang, Rungnapa Leelatanawit, Sirawut Klinbunga, Sithichoke Tangphatsornruang, Nitsara Karoonuthaisiri
The black tiger shrimp (Penaeus monodon) is an aquatic animal with considerable economic importance. Poor reproductive maturation in captivity impedes sustainable aquaculture production of this species. This study aims to provide transcriptomic information on reproductive organs using 454 pyrosequencing technology. The transcriptome analysis of ovaries and testes revealed 41,136 transcripts with 20,192 contigs. We found novel sets of transcripts completing several important reproductive pathways such as gonadotropin-releasing hormone (GnRH) signaling and progesterone-mediated oocyte maturation...
September 9, 2017: Marine Genomics
https://www.readbyqxmd.com/read/28895356/-pathogenicity-of-white-spot-syndrome-virus-in-macrobrachium-nipponensis-via-different-infection-routes
#10
Rong Yin, Yuanyuan Guo, Zhangliang Wei, Dingji Shi, Peimin He, Rui Jia
Macrobrachium nipponensis is delicious and has high economic value, but its susceptibility to white-spot syndrome virus (WSSV) is unknown. Susceptibility, morbidity, and multiplication of WSSV in M. nipponense were studied by epidemiological survey, infection experiment and qPCR. M. nipponense was the natural host of WSSV, and the natural carrying rate was about 8.33%. M. nipponense could be infected with WSSV via oral administration, muscle injection and immersion, and the cumulative infection rate of 10 d exposure was 100%, and the cumulative mortality rates were 100%, 75% and 0%, respectively...
June 25, 2017: Sheng Wu Gong Cheng Xue Bao, Chinese Journal of Biotechnology
https://www.readbyqxmd.com/read/28893216/antimalarial-efficacy-of-pongamia-pinnata-l-pierre-against-plasmodium-falciparum-3d7-strain-and-plasmodium-berghei-anka
#11
P V V Satish, K Sunita
BACKGROUND: The objective of the current study was to assess the in vitro antiplasmodial activities of leaf, bark, flower, and the root of Pongamia pinnata against chloroquine-sensitive Plasmodium falciparum (3D7 strain), cytotoxicity against Brine shrimp larvae and THP-1 cell line. For in vivo study, the plant extract which has shown potent in vitro antimalarial activity was tested against Plasmodium berghei (ANKA strain). METHODS: The plant Pongamia pinnata was collected from the herbal garden of Acharya Nagarjuna University of Guntur district, Andhra Pradesh, India...
September 11, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28891740/host-abundance-seagrass-cover-and-temperature-predict-infection-rates-of-parasitic-isopods-bopyridae-on-caridean-shrimp
#12
Sarah A Briggs, Christopher A Blanar, Michael B Robblee, Christopher B Boyko, Amy C Hirons
Caridean shrimp are critical components of seagrass communities and occasionally harbor parasitic bopyrid isopods, which can negatively impact their hosts. However, the ecological factors that drive infection rates of parasitic bopyrid isopods in host carideans are poorly known. We examined 43,785 carideans belonging to 6 families and 11 genera from 19 shallow-water localities throughout south Florida. Of these, only 114 shrimp (belonging to 5 genera) were found to be infested with bopyrids (an additional 251 had deformed carapaces consistent with recent infestation)...
September 11, 2017: Journal of Parasitology
https://www.readbyqxmd.com/read/28891023/variation-of-mucin-adhesion-cell-surface-characteristics-and-molecular-mechanisms-among-lactobacillus-plantarum-isolated-from-different-habitats
#13
Nirunya Buntin, Willem M de Vos, Tipparat Hongpattarakere
The adhesion ability to mucin varied greatly among 18 Lactobacillus plantarum isolates depending on their isolation habitats. Such ability remained at high level even though they were sequentially exposed to the gastrointestinal (GI) stresses. The majority of L. plantarum isolated from shrimp intestine and about half of food isolates exhibited adhesion ability (51.06-55.04%) about the same as the well-known adhesive L. plantarum 299v. Interestingly, five infant isolates of CIF17A2, CIF17A4, CIF17A5, CIF17AN2, and CIF17AN8 exhibited extremely high adhesion ranging from 62...
September 11, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28890268/novel-acylhydrazone-bond-dynamic-covalent-polymer-gel-monolithic-column-online-coupling-to-high-performance-liquid-chromatography-for-analysis-of-sulfonamides-and-fluorescent-whitening-agents-in-food
#14
Chengjiang Zhang, Xialin Luo, Tianfu Wei, Yufei Hu, Gongke Li, Zhuomin Zhang
A new dynamic covalent polymer (DCP) gel was well designed and constructed based on imine chemistry. Polycondensation of 4,4'-biphenyldicarboxaldehyde and 1,3,5-benzenetricarbohydrazide via Schiff-base reaction resulted in an acylhydrazone bond gel (AB-gel) DCP. AB-gel DCP had three-dimensional network of interconnected nanoparticles with hierarchically porous structure. AB-gel DCP was successfully fabricated as a monolithic column by an in-situ chemical bonding method for online enrichment and separation purpose with excellent permeability...
September 4, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28889015/functional-characterization-of-a-reactive-oxygen-species-modulator-1-gene-in-litopenaeus-vannamei
#15
Hong-Hui He, Yi-Miao Chi, Kai Yuan, Xiao-Yun Li, Shao-Ping Weng, Jian-Guo He, Yi-Hong Chen
Reactive oxygen species (ROS) imparts a dual effect on multicellular organisms, wherein high levels are usually harmful, and low levels could facilitate in combating pathogenic microorganisms; therefore, the regulation of ROS production is critical. Previous studies have suggested that ROS contributes to resistance to the white spot syndrome virus (WSSV) or Vibrio alginolyticus in Litopenaeus vannamei. However, the regulation of ROS metabolism in L. vannamei remains elusive. In the present study, we proved that the overexpression of L...
September 6, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28889014/transcriptomic-and-morphological-analyses-of-litopenaeus-vannamei-intestinal-barrier-in-response-to-vibrio-paraheamolyticus-infection-reveals-immune-response-signatures-and-structural-disruption
#16
Cancan Qi, Lei Wang, Mei Liu, Keyong Jiang, Mengqiang Wang, Wei Zhao, Baojie Wang
The white shrimp Litopenaeus vannamei has been greatly impacted by Vibrio infection. In this study, we investigated the intestinal barrier response of L vannamei following challenge with Vibrio parahaemolyticus E1, by examining morphological changes and transcriptome expression levels. A total of 16,4420 unigenes were obtained from RNAseq data after quality control and assembly, and 4646 differentially expressed genes (DEGs) were identified following Vibrio challenge, of which 2469 unigenes were significantly up-regulated and 2177 were significantly down-regulated...
September 6, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28888760/an-in-vitro-investigation-of-indigenous-south-african-medicinal-plants-used-to-treat-oral-infections
#17
S Akhalwaya, S van Vuuren, M Patel
ETHNOPHARMACOLOGICAL RELEVANCE: Over a 120 South African medicinal plants are used for the treatment of oral diseases. Despite the vast collection of antimicrobial studies being done on South African plants, there is still limited research on pathogens associated with oral infections. In consultation with the available ethnobotanical literature, this study investigates the antimicrobial efficacy of some South African medicinal plants against oral pathogens. AIM OF THE STUDY: To provide a detailed account of the antimicrobial properties of selected South African medicinal plants used traditionally to treat oral infections...
September 7, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28887611/toxicity-uptake-and-accumulation-of-nano-and-bulk-cerium-oxide-particles-in-artemia-salina
#18
Einstein Mariya David Sugantharaj David, Madhav Madurantakam Royam, Suresh Kumar Rajamani Sekar, Bhuvaneshwari Manivannan, Swathy Jalaja Soman, Amitava Mukherjee, Chandrasekaran Natarajan
Although the toxicological impact of metal oxide nanoparticles has been studied for the last few decades on aquatic organisms, the exact mechanism of action is still unclear. The fate, behavior, and biological activity of nanoparticles are dependent on physicochemical factors like size, shape, surface area, and stability in the medium. This study deals with the effect of nano and bulk CeO2 particles on marine microcrustacean, Artemia salina. The primary size was found to be 15 ± 3.5 and 582 ± 50 nm for nano and bulk CeO2 (TEM), respectively...
September 8, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28887169/in-vitro-and-in-vivo-exploration-of-palmitic-acid-from-synechococcus-elongatus-as-an-antibiofilm-agent-on-the-survival-of-artemia-franciscana-against-virulent-vibrios
#19
Sivasubramanian Santhakumari, Nizam Mohamed Nilofernisha, Jeyaraj Godfred Ponraj, Shunmugiah Karutha Pandian, Arumugam Veera Ravi
Biofilm formation of Vibrio spp. has been demonstrated as a potentially important mechanism contributing antibiotic treatment failure in aquaculture. In the present study, the effect of palmitic acid (PA) identified from Synechococcus elongatus was assessed for the inhibition of quorum sensing (QS) regulated biofilm formation in aquatic bacterial pathogens. The biofilm inhibitory concentration (BIC) of PA against Vibrio spp. was found to be 100µgml(-1). In this concentration, PA exhibited a significant inhibition in biofilm biomass of Vibrio harveyi MTCC 3438, V...
September 6, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/28886062/energy-reserves-mobilization-strategies-of-three-decapod-species
#20
Hernán Javier Sacristán, Yamila Eliana Rodríguez, Nair De Los Angeles Pereira, Laura Susana López Greco, Gustavo Alejandro Lovrich, Analía Verónica Fernández Gimenez
In food deprivation assays, several different responses have been observed in crustaceans. However, studying energy reserves utilization among more than one species during the same starvation period has not yet been performed, particularly to discern whether the responses are due to intrinsic and/or environmental factors. We hypothesize that decapod species with similar feeding habits have the same strategies in the use of energetic reserves during starvation, even though they inhabit different environments...
2017: PloS One
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