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https://www.readbyqxmd.com/read/29151237/health-risk-contamination-of-heavy-metals-in-yolk-and-albumen-of-duck-eggs-collected-in-central-and-western-thailand
#1
P Aendo, R Netvichian, S Tippayalak, A Sanguankiat, T Khuntamoon, T Songserm, P Tulayakul
Two hundred duck egg samples were collected from 20 farms in Central and Western Thailand. The levels of Zn, Co, Mn, Fe, and Cr in yolks were found significantly higher than in albumen, whereas the levels of Cd and Cu contaminations in egg albumen were significantly higher than in yolks. The mean level of Pb contamination in whole eggs was 4.06 ± 2.70 mg kg(-1) dry weight. This level was higher than the Thai agricultural standard no. 6703-2005 for duck eggs set at 0.1 ppm for the magnitude of 40.6 times...
November 18, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/29149643/the-role-of-the-p38-activated-protein-kinase-signaling-pathway-mediated-autophagy-in-cadmium-exposed-monogonont-rotifer-brachious-koreanus
#2
Hye-Min Kang, Chang-Bum Jeong, Min-Sub Kim, Jin-Sol Lee, Jiaying Zhou, Young Hwan Lee, Duck-Hyun Kim, Eunyoung Moon, Hee-Seok Kweon, Su-Jae Lee, Jae-Seong Lee
Autophagy is a 'self-eating' system that regulates the degradation of cellular components and is involved in various biological processes including survival and development. However, despite its crucial role in organisms, the regulatory mechanism of autophagy remains largely unclear, particularly in invertebrates. In this study, conserved autophagy in the rotifer Brachionus koreanus in response to cadmium (Cd) exposure was verified by measuring acidic vesicle organelles using acridine orange (AO) and neutral red (NR) staining, and by detecting LC3 I/II on Western blot and immunofluorescence...
November 10, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/29149628/multiplex-taqman-locked-nucleic-acid-real-time-pcr-for-the-differential-identification-of-various-meat-and-meat-products
#3
Rusu Xu, Shuang Wei, Guangbiao Zhou, Jiao Ren, Zhongyong Liu, Shuze Tang, Peter C K Cheung, Xiyang Wu
Meat adulteration incidents have been reported frequently over the past few years, and the corresponding traceability issues attracted much more attention due to the customer's demands and administration's responsibility. Therefore, it is important to develop high-throughput and rapid detection methods to identify the specific sources from meat samples. In this study, a multiplex TaqMan locked nucleic acid real-time polymerase chain reaction assay (MLNA-RT-PCR) was developed to simultaneously detect multiple meat sources (duck, pork, beef and chicken)...
November 14, 2017: Meat Science
https://www.readbyqxmd.com/read/29149023/antibiotic-susceptibility-genetic-diversity-and-the-presence-of-toxin-producing-genes-in-campylobacter-isolates-from-poultry
#4
Jeeyeon Lee, Jiyeon Jeong, Heeyoung Lee, Jimyeong Ha, Sejeong Kim, Yukyung Choi, Hyemin Oh, Kunho Seo, Yohan Yoon, Soomin Lee
This study examined antibiotic susceptibility, genetic diversity, and characteristics of virulence genes in Campylobacter isolates from poultry. Chicken (n = 152) and duck (n = 154) samples were collected from 18 wet markets in Korea. Campylobacter spp. isolated from the carcasses were identified by PCR. The isolated colonies were analyzed for antibiotic susceptibility to chloramphenicol, amikacin, erythromycin, tetracycline, ciprofloxacin, nalidixic acid, and enrofloxacin. The isolates were also used to analyze genetic diversity using the DiversiLab(TM) system and were tested for the presence of cytolethal distending toxin (cdt) genes...
November 17, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29148878/molecular-characterization-of-fluoroquinolone-resistance-mechanisms-of-campylobacter-isolates-from-duck-meats
#5
Min Kang, Bai Wei, Sung-Woon Choi, Se-Yeoun Cha, Hyung-Kwan Jang
The purpose of this study was to identify the molecular basis of quinolone resistance of Campylobacter isolates recovered from duck meats. Sixty-one isolates from duck meat samples were studied using sequence analysis of the gyrA gene, and PCR assays were used to identify the presence of the CmeABC efflux pump and its restored sensitivity in the presence of efflux-pump inhibitors. High-level resistance to nalidixic acid and ciprofloxacin was attributed to amino acid substitutions Thr-86-Ile in some isolates...
November 17, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/29148372/deaths-among-wild-birds-during-highly-pathogenic-avian-influenza-a-h5n8-virus-outbreak-the-netherlands
#6
Erik Kleyheeg, Roy Slaterus, Rogier Bodewes, Jolianne M Rijks, Marcel A H Spierenburg, Nancy Beerens, Leon Kelder, Marjolein J Poen, Jan A Stegeman, Ron A M Fouchier, Thijs Kuiken, Henk P van der Jeugd
During autumn-winter 2016-2017, highly pathogenic avian influenza A(H5N8) viruses caused mass die-offs among wild birds in the Netherlands. Among the ≈13,600 birds reported dead, most were tufted ducks (Aythya fuligula) and Eurasian wigeons (Anas penelope). Recurrence of avian influenza outbreaks might alter wild bird population dynamics.
December 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29144408/antioxidant-effect-of-barley-sprout-extract-via-enhancement-of-nuclear-factor-erythroid-2-related-factor-2-activity-and-glutathione-synthesis
#7
Yun-Hee Lee, Sou Hyun Kim, Seunghyun Lee, Kyung-Mi Kim, Jae-Chul Jung, Tae Gen Son, Sung Hwan Ki, Woo-Duck Seo, Jae-Hwan Kwak, Jin Tae Hong, Young-Suk Jung
We previously showed that barley sprout extract (BSE) prevents chronic alcohol intake-induced liver injury in mice. BSE notably inhibited glutathione (GSH) depletion and increased inflammatory responses, revealing its mechanism of preventing alcohol-induced liver injury. In the present study we investigated whether the antioxidant effect of BSE involves enhancing nuclear factor-erythroid 2 related factor 2 (Nrf2) activity and GSH synthesis to inhibit alcohol-induced oxidative liver injury. Mice fed alcohol for four weeks exhibited significantly increased oxidative stress, evidenced by increased malondialdehyde (MDA) level and 4-hydroxynonenal (4-HNE) immunostaining in the liver, whereas treatment with BSE (100 mg/kg) prevented these effects...
November 16, 2017: Nutrients
https://www.readbyqxmd.com/read/29143488/isolation-and-characterization-of-novel-goose-parvovirus-related-virus-reveal-the-evolution-of-waterfowl-parvovirus
#8
P Li, S Lin, R Zhang, J Chen, D Sun, J Lan, S Song, Z Xie, S Jiang
Short beak and dwarfism syndrome (SBDS) has been constantly breaking out in China since 2015. It is caused by a novel goose parvovirus-related virus (NGPV) and can severely restrict the growth of ducks. In this study, seven NGPV stains were isolated from different regions in China between 2015 and 2016. To better understand the correlation between NGPV and goose parvovirus (GPV), we conducted complete genome sequencing and a comprehensive analysis of the NGPV genome. The phylogenetic and alignment analysis showed that NGPV is a branch of GPV, sharing 92...
November 16, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29141880/divergent-respiratory-and-cardiovascular-responses-to-hypoxia-in-bar-headed-geese-and-andean-birds
#9
Sabine L Lague, Beverly Chua, Luis Alza, Graham R Scott, Peter B Frappell, Yang Zhong, Anthony P Farrell, Kevin G McCracken, Yuxiang Wang, William K Milsom
Many high-altitude vertebrates have evolved increased capacities in their oxygen transport cascade (ventilation, pulmonary diffusion, circulation and tissue diffusion), enhancing oxygen transfer from the atmosphere to mitochondria. However, the extent of interspecies variation in the control processes that dictate hypoxia responses remains largely unknown. We compared the metabolic, cardiovascular and respiratory responses to progressive decreases in inspired oxygen levels of bar-headed geese (Anser indicus), birds that biannually migrate across the Himalayan mountains, with those of Andean geese (Chloephaga melanoptera) and crested ducks (Lophonetta specularioides), lifelong residents of the high Andes...
November 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29140826/effects-of-integrating-rhythmic-arm-swing-into-robot-assisted-walking-in-patients-with-subacute-stroke-a-randomized-controlled-pilot-study
#10
Tae-Woo Kang, Duck-Won Oh, Ji-Hyun Lee, Heon-Seock Cynn
This study aimed to identify the effects of rhythmic arm swing during robot-assisted walking training on balance, gait, motor function, and activities of daily living among patients with subacute stroke. Twenty patients with subacute stroke were recruited, and thereafter randomly allocated to either the experimental group that performed the robot-assisted walking training with rhythmic arm swing, or the control group that performed the training in arm fixation. In total, 30 training sessions were carried out...
November 14, 2017: International Journal of Rehabilitation Research. Revue Internationale de Recherches de Réadaptation
https://www.readbyqxmd.com/read/29139147/the-development-of-lingual-glands-in-the-domestic-duck-anas-platyrhynchos-f-domestica-3d-reconstruction-lm-and-sem-study
#11
Kinga Skieresz-Szewczyk, Pieter Cornillie, Hanna Jackowiak
The major salivary glands of birds develop by branching or elongation of the epithelial cords. The development of the minor salivary glands in form of the lingual glands has never been described. Among birds, only Anatidae have three types of the lingual glands: rostral, caudo-lateral, and caudo-medial lingual glands. The study aims to characterize the manner and rate of the lingual glands development in the domestic duck and their topographical arrangement relative to the hyoid apparatus. The study reveals that all three types of the lingual glands develop by branching...
November 15, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/29137226/the-neglected-avian-hepatotropic-virus-induces-acute-and-chronic-hepatitis-in-ducks-an-alternative-model-for-hepatology
#12
Xumin Ou, Sai Mao, Jingyu Cao, Yunchao Ma, Guangpeng Ma, Anchun Cheng, Mingshu Wang, Dekang Zhu, Shun Chen, Renyong Jia, Mafeng Liu, Kunfeng Sun, Qiao Yang, Ying Wu, Xiaoyue Chen
Duck Hepatitis A Virus (DHAV) belongs to the Avihepatovirus, which is also classified into Picornaviridae with Hepatovirus, Hepatitis A Virus (HAV). In humans, the pathogenesis of HAV is not well understood because of limited work with animal models. Here, we investigated the progress of duck viral hepatitis caused by DHAV and their potential for dissecting the pathogenesis of HAV. During the course of infection, the duck model had undergone hepatocellular lesions (vacuolation, acidophilic degeneration and steatosis), lymphocytes recruitment (neutrophil granulocytes, heterophilic granulocytes and T cells or plasm cells) and repair (activation of hepatic stellate cells, fibrosis and regeneration)...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29136220/interactions-of-dietary-protein-and-threonine-on-growth-performance-in-pekin-ducklings-from-1-to-14-days-of-age
#13
Y Jiang, Y W Zhu, M Xie, J Tang, Z G Wen, S Y Qiao, S S Hou
The present study was conducted to investigate the effects of dietary crude protein (CP) on threonine requirements by determining the interactions of dietary CP levels (16.0, 17.5, 19.0, 20.5, and 22.0%) and supplemental threonine levels (0, 0.07, 0.14, 0.21, and 0.28%) on growth performance of Pekin ducks from 1 to 14 days of age. A total of 1,200 one-day-old male Pekin ducks was randomly allotted to 1 of 25 dietary treatments with 6 replicate pens of 8 birds per pen for each treatment. The results showed that dietary CP and threonine levels affected the average daily feed intake (ADFI, P < 0...
November 9, 2017: Poultry Science
https://www.readbyqxmd.com/read/29134024/hidden-in-the-urban-parks-of-new-york-city-themira-lohmanus-a-new-species-of-sepsidae-described-based-on-morphology-dna-sequences-mating-behavior-and-reproductive-isolation-sepsidae-diptera
#14
Yuchen Ang, Gowri Rajaratnam, Kathy Fy Su, Rudolf Meier
New species from well-studied taxa such as Sepsidae (Diptera) are rarely described from localities that have been extensively explored and one may think that New York City belongs to this category. Yet, a new species of Themira (Diptera: Sepsidae) was recently discovered which is currently only known to reside in two of New York City's largest urban parks. Finding a new species of Themira in these parks was all the more surprising because the genus was revised in 1998 and is not particularly species-rich (13 species)...
2017: ZooKeys
https://www.readbyqxmd.com/read/29133087/preparation-and-characterization-of-a-novel-biocomposite-based-on-duck-feet-gelatin-as-alternative-to-bovine-gelatin
#15
Ahmadreza Abedinia, Fazilah Ariffin, Nurul Huda, Abdorreza Mohammadi Nafchi
Edible duck feet gelatin (DFG)-based biocomposites with different glycerol (GLY) contents (15%, 25%, and 35% of dried DFG) were prepared. Physicochemical, mechanical, barrier, and heat seal properties of DFG films were characterized and compared as an alternative to bovine gelatin film. Increasing glycerol from 15 to 35% decreased the TS and YM and EB and HS increased, in value of 42.54 to 7.27 and 1240 to 157.10MPa and 22.82 to 50.33% and 42.06 to 347.15N/m respectively. The water vapor permeability (WVP) and oxygen permeability (OP) of films were increased from 4...
November 10, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29129490/rnalater-%C3%A2-is-a-viable-storage-option-for-avian-influenza-sampling-in-logistically-challenging-conditions
#16
Michelle Wille, Hong Yin, Åke Lundkvist, Juan Xu, Shaman Muradrasoli, Josef D Järhult
Surveillance of wild birds is critical in monitoring for highly pathogenic avian influenza A viruses (AIVs). However, a successful surveillance regime requires proper treatment of samples in the field - rapid placement of samples in -80°C and subsequent maintenance of cold-chain. Given the logistical difficulties of this, many avian taxa and/or geographic locations are not sampled, or, when sampled may result in false negatives due to poor sample treatment in the field. Here, we assessed the utility of RNAlater(®) as a stabilization agent for AIV sampling...
November 10, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/29127646/can-we-spice-up-our-christmas-dinner-busting-the-myth-of-the-chinese-restaurant-syndrome
#17
N W E van den Berg, J Neefs, W R Berger, S W E Baalman, E Meulendijks, M Kawasaki, E M Kemper, F R Piersma, M W Veldkamp, R Wesselink, S P J Krul, J R de Groot
BACKGROUND: Monosodium glutamate (MSG), also referred to as Vetsin or E621, is a flavour enhancer frequently used in Asian cuisine and abundantly present in the famous Chinese dish Peking duck. MSG is notorious for triggering the onset of the so-called 'Chinese restaurant syndrome' (CRS), a complex of unpleasant symptoms, which might include flushing, sweating and the onset of atrial fibrillation (AF). This study aims to determine the effects of MSG on the occurrence of AF. METHODS: We conducted a placebo self-controlled single-arm study in the Academic Medical Centre in Amsterdam...
December 2017: Netherlands Heart Journal
https://www.readbyqxmd.com/read/29127031/sulfur-mustard-induced-mast-cell-degranulation-in-mouse-skin-is-inhibited-by-a-novel-anti-inflammatory-and-anticholinergic-bifunctional-prodrug
#18
Laurie B Joseph, Gabriella M Composto, Roberto M Perez, Hong-Duck Kim, Robert P Casillas, Ned D Heindel, Sherri C Young, Carl J Lacey, Jaya Saxena, Christophe D Guillon, Claire R Croutch, Jeffrey D Laskin, Diane E Heck
Sulfur mustard (SM, bis(2-chloroethyl sulfide) is a potent vesicating agent known to cause skin inflammation, necrosis and blistering. Evidence suggests that inflammatory cells and mediators that they generate are important in the pathogenic responses to SM. In the present studies we investigated the role of mast cells in SM-induced skin injury using a murine vapor cup exposure model. Mast cells, identified by toluidine blue staining, were localized in the dermis, adjacent to dermal appendages and at the dermal/epidermal junction...
November 7, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/29126900/activity-of-nucleic-acid-polymers-in-rodent-models-of-hbv-infection
#19
Katrin Schöneweis, Neil Motter, Pia L Roppert, Mengji Lu, Baoju Wang, Ingo Roehl, Dieter Glebe, Dongliang Yang, John D Morrey, Michael Roggendorf, Andrew Vaillant
Nucleic acid polymers (NAPs) block the release of HBsAg from infected hepatocytes. These compounds have been previously shown to have the unique ability to eliminate serum surface antigen in DHBV-infected Pekin ducks and achieve multilog reduction of HBsAg or HBsAg loss in patients with chronic HBV infection and HBV/HDV coinfection. In ducks and humans, the blockage of HBsAg release by NAPs occurs by the selective targeting of the assembly and/or secretion of subviral particles (SVPs). The clinically active NAP species REP 2055 and REP 2139 were investigated in other relevant animal models of HBV infection including woodchucks chronically infected with WHV, HBV transgenic mice and HBV infected SCID-Hu mice...
November 8, 2017: Antiviral Research
https://www.readbyqxmd.com/read/29126666/preparation-and-immunological-evaluation-of-inactivated-avian-influenza-virus-vaccine-encapsulated-in-chitosan-nanoparticles
#20
Samah H Mohamed, Abdel Satar Arafa, Wesam H Mady, Hanan A Fahmy, Lamiaa M Omer, Rania E Morsi
Efficacy maximization of inactivated avian influenza vaccine using safe adjuvants was investigated. Chitosan nanoparticles were prepared by ionic gelation method with average size of 150 nm and their Zeta potential was 11.5 mV. After encapsulation of avian influenza vaccine, the average size was 397 nm and Zeta potential was 4.29 mV. The highest HI antibody titer results were shown in chicken group vaccinated with inactivated avian influenza virus AIV-chitosan followed by the group vaccinated with inactivated AIV-chitosan nanoparticles then the group vaccinated with oil inactivated AIV vaccine, on using chicken antigen at 2 weeks post second vaccination...
November 8, 2017: Biologicals: Journal of the International Association of Biological Standardization
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