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https://www.readbyqxmd.com/read/27873320/the-behavioural-homing-response-of-adult-chum-salmon-oncorhynchus-keta-to-amino-acid-profiles
#1
E Y Chen, J B K Leonard, H Ueda
Adult chum salmon Oncorhynchus keta homing behaviour in a two-choice test tank (Y-maze) was monitored using a passive integrated transponder (PIT)-tag system in response to river-specific dissolved free amino-acid (DFAA) profiles and revealed that the majority of O. keta showed a preference for artificial natal-stream water and tended to stay in this maze arm for a longer period; natal-stream water was chosen over a nearby tributary's water, but not when the O. keta were presented with a non-tributary water...
November 21, 2016: Journal of Fish Biology
https://www.readbyqxmd.com/read/27859168/sea-louse-parasites-on-juvenile-wild-salmon-in-the-broughton-archipelago-british%C3%A2-columbia-canada
#2
Stephanie J Peacock, Andrew W Bateman, Martin Krkošek, Brendan Connors, Scott Rogers, Lauren Portner, Zephyr Polk, Coady Webb, Alexandra Morton
The global expansion of aquaculture has changed the structure of fish populations in coastal environments, with implications for disease dynamics. In Pacific Canada, farmed salmon act as reservoir hosts for parasites and pathogens, including sea lice (Lepeophtheirus salmonis and Caligus clemensi) that can transmit to migrating wild salmon. Assessing the impact of salmon farms on wild salmon requires regular monitoring of sea-louse infections on both farmed and wild fish. Since 2001, we have collected juvenile pink (Oncorhynchus gorbuscha) and chum (O...
July 2016: Ecology
https://www.readbyqxmd.com/read/27828988/environmental-dna-from-residual-saliva-for-efficient-noninvasive-genetic-monitoring-of-brown-bears-ursus-arctos
#3
Rachel E Wheat, Jennifer M Allen, Sophie D L Miller, Christopher C Wilmers, Taal Levi
Noninvasive genetic sampling is an important tool in wildlife ecology and management, typically relying on hair snaring or scat sampling techniques, but hair snaring is labor and cost intensive, and scats yield relatively low quality DNA. New approaches utilizing environmental DNA (eDNA) may provide supplementary, cost-effective tools for noninvasive genetic sampling. We tested whether eDNA from residual saliva on partially-consumed Pacific salmon (Oncorhynchus spp.) carcasses might yield suitable DNA quality for noninvasive monitoring of brown bears (Ursus arctos)...
2016: PloS One
https://www.readbyqxmd.com/read/27752185/comparison-of-maternal-health-services-and-indicators-in-three-districts-of-the-volta-region-ghana
#4
Eun Woo Nam, Afisah Zakariah, Festus Adams, Young Suk Jun, Richard Adanu
BACKGROUND: Ghana's maternal mortality ratio continues to decline, but is not expected to meet the Millennium Development Goal (MDG) 5 target. The Ghana Health Service and Ministry of Health have displayed a high commitment to the improvement of maternal health in the country. One of the most recent partnerships directed at this is with the Korea International Cooperation Agency. METHODS: This study was conducted among women between ages 15 and 49 resident in Keta Municipal, Ketu North and Ketu South districts in the Volta Region of Ghana who were pregnant or who had children aged less than five...
September 2016: Ghana Medical Journal
https://www.readbyqxmd.com/read/27748286/carbon-ions-of-different-linear-energy-transfer-let-values-induce-apoptosis-g2-cell-cycle-arrest-in-radio-resistant-melanoma-cells
#5
Žakula Jelena, Korićanac Lela, Keta Otilija, Todorović Danijela, A P Cirrone Giuseppe, Romano Francesco, Cuttone Giacomo, Petrović Ivan, Ristić-Fira Aleksandra
BACKGROUND & OBJECTIVES: The main goal when treating malignancies with radiation is to deprive tumour cells of their reproductive potential. One approach is to induce tumour cell apoptosis. This study was conducted to evaluate the ability of carbon ions ( [12] C) to induce apoptosis and cell cycle arrest in human HTB140 melanoma cells. METHODS: In this in vitro study, human melanoma HTB140 cells were irradiated with the 62 MeV/n carbon ( [12] C) ion beam, having two different linear energy transfer (LET) values: 197 and 382 keV/μm...
May 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/27704180/a-simple-method-for-isolation-and-construction-of-markerless-cyanobacterial-mutants-defective-in-acyl-acyl-carrier-protein-synthetase
#6
Kouji Kojima, Sumie Keta, Kazuma Uesaka, Akihiro Kato, Nobuyuki Takatani, Kunio Ihara, Tatsuo Omata, Makiko Aichi
Cyanobacterial mutants defective in acyl-acyl carrier protein synthetase (Aas) secrete free fatty acids (FFAs) into the external medium and hence have been used for the studies aimed at photosynthetic production of biofuels. While the wild-type strain of Synechocystis sp. PCC 6803 is highly sensitive to exogenously added linolenic acid, mutants defective in the aas gene are known to be resistant to the externally provided fatty acid. In this study, the wild-type Synechocystis cells were shown to be sensitive to lauric, oleic, and linoleic acids as well, and the resistance to these fatty acids was shown to be enhanced by inactivation of the aas gene...
December 2016: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27633574/comparison-of-human-lung-cancer-cell-radiosensitivity-after-irradiations-with-therapeutic-protons-and-carbon-ions
#7
Otilija D Keta, Danijela V Todorović, Tanja M Bulat, Pablo Ga Cirrone, Francesco Romano, Giacomo Cuttone, Ivan M Petrović, Aleksandra M Ristić Fira
The aim of this study was to investigate effects of irradiations with the therapeutic proton and carbon ion beams in two non-small cell lung cancers, CRL5876 adenocarcinoma and HTB177 large cell lung carcinoma. The DNA damage response dynamics, cell cycle regulation, and cell death pathway activation were followed. Viability of both cell lines was lower after carbon ions compared to the therapeutic proton irradiations. HTB177 cells showed higher recovery than CRL5876 cells seven days following the treatments, but the survival rates of both cell lines were lower after exposure to carbon ions with respect to therapeutic protons...
September 15, 2016: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27627672/sequential-and-simultaneous-immunization-of-rabbits-with-hiv-1-envelope-glycoprotein-sosip-664-trimers-from-clades-a-b-and-c
#8
P J Klasse, Celia C LaBranche, Thomas J Ketas, Gabriel Ozorowski, Albert Cupo, Pavel Pugach, Rajesh P Ringe, Michael Golabek, Marit J van Gils, Miklos Guttman, Kelly K Lee, Ian A Wilson, Salvatore T Butera, Andrew B Ward, David C Montefiori, Rogier W Sanders, John P Moore
We have investigated the immunogenicity in rabbits of native-like, soluble, recombinant SOSIP.664 trimers based on the env genes of four isolates of human immunodeficiency virus type 1 (HIV-1); specifically BG505 (clade A), B41 (clade B), CZA97 (clade C) and DU422 (clade C). The various trimers were delivered either simultaneously (as a mixture of clade A + B trimers) or sequentially over a 73-week period. Autologous, Tier-2 neutralizing antibody (NAb) responses were generated to the clade A and clade B trimers in the bivalent mixture...
September 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27610162/impact-of-pharmaceutical-impurities-in-ecstasy-tablets-gas-chromatography-mass-spectrometry-study
#9
Amir Jalali, Amir Hatamie, Tahere Saferpour, Alireza Khajeamiri, Tahere Safa, Foad Buazar
In this study, a simple and reliable method by gas chromatograph-mass spectrometry (GC-MS) was developed for the fast and regular identification of 3, 4-MDMA impurities in ecstasy tablets. In so doing, 8 samples of impurities were extracted by diethyl ether under alkaline condition and then analyzed by GC-MS. The results revealed high MDMA levels ranging from 37.6% to 57.7%. The GC-MS method showed that unambiguous identification can be achieved for MDMA from 3, 4-methylenedioxyamphetamine (MDA), Amphetamine (AM), methamphetamine (MA) and ketamine (Keta) compounds, respectively...
2016: Iranian Journal of Pharmaceutical Research: IJPR
https://www.readbyqxmd.com/read/27580871/the-sea-of-okhotsk-and-the-bering-sea-as-the-region-of-natural-aquaculture-organochlorine-pesticides-in-pacific-salmon
#10
Vasiliy Yu Tsygankov, Olga N Lukyanova, Nadezhda K Khristoforova
Kuril Islands of the Sea of Okhotsk and the western part of the Bering Sea are an area of natural feeding of Pacific salmon, and the catch area of ones for food market. Food safety of products is an important task of aquaculture. Сoncentrations of HCHs (α-, β-, γ-) and DDT and its metabolites (DDD and DDE) were determined in organs of the pink (Oncorhynchus gorbuscha), chum (O. keta), chinook (O. tshawytscha), and sockeye (O. nerka), which caught from the natural aquaculture region of Russia (near the Kuril Islands (the northern-western part of the Pacific Ocean), the Sea of Okhotsk and the Bering Sea)...
August 28, 2016: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/27530602/hybrids-between-chum-oncorhynchus-keta-and-pink-oncorhynchus-gorbuscha-salmon-age-growth-and-morphology-and-effects-on-salmon-production
#11
L A Zhivotovsky, T G Tochilina, E G Shaikhaev, V P Pogodin, T V Malinina, A J Gharrett
Mature hybrids between chum salmon Oncorhynchus keta and pink salmon Oncorhynchus gorbuscha, which were identified by an intermediate colour pattern, were caught at the Kurilsky Hatchery, Iturup Island, Russia. Most of them were female and 3 years old (a partial freshwater year and 2 marine years), which is intermediate between the ages of maturity of the parental species. The hybrids exceed both parental species in the rate of growth, are large in size and robust and might successfully compete for mating in the wild or be chosen for artificial reproduction...
October 2016: Journal of Fish Biology
https://www.readbyqxmd.com/read/27467575/open-source-drug-discovery-with-the-malaria-box-compound-collection-for-neglected-diseases-and-beyond
#12
Wesley C Van Voorhis, John H Adams, Roberto Adelfio, Vida Ahyong, Myles H Akabas, Pietro Alano, Aintzane Alday, Yesmalie Alemán Resto, Aishah Alsibaee, Ainhoa Alzualde, Katherine T Andrews, Simon V Avery, Vicky M Avery, Lawrence Ayong, Mark Baker, Stephen Baker, Choukri Ben Mamoun, Sangeeta Bhatia, Quentin Bickle, Lotfi Bounaadja, Tana Bowling, Jürgen Bosch, Lauren E Boucher, Fabrice F Boyom, Jose Brea, Marian Brennan, Audrey Burton, Conor R Caffrey, Grazia Camarda, Manuela Carrasquilla, Dee Carter, Maria Belen Cassera, Ken Chih-Chien Cheng, Worathad Chindaudomsate, Anthony Chubb, Beatrice L Colon, Daisy D Colón-López, Yolanda Corbett, Gregory J Crowther, Noemi Cowan, Sarah D'Alessandro, Na Le Dang, Michael Delves, Joseph L DeRisi, Alan Y Du, Sandra Duffy, Shimaa Abd El-Salam El-Sayed, Michael T Ferdig, José A Fernández Robledo, David A Fidock, Isabelle Florent, Patrick V T Fokou, Ani Galstian, Francisco Javier Gamo, Suzanne Gokool, Ben Gold, Todd Golub, Gregory M Goldgof, Rajarshi Guha, W Armand Guiguemde, Nil Gural, R Kiplin Guy, Michael A E Hansen, Kirsten K Hanson, Andrew Hemphill, Rob Hooft van Huijsduijnen, Takaaki Horii, Paul Horrocks, Tyler B Hughes, Christopher Huston, Ikuo Igarashi, Katrin Ingram-Sieber, Maurice A Itoe, Ajit Jadhav, Amornrat Naranuntarat Jensen, Laran T Jensen, Rays H Y Jiang, Annette Kaiser, Jennifer Keiser, Thomas Ketas, Sebastien Kicka, Sunyoung Kim, Kiaran Kirk, Vidya P Kumar, Dennis E Kyle, Maria Jose Lafuente, Scott Landfear, Nathan Lee, Sukjun Lee, Adele M Lehane, Fengwu Li, David Little, Liqiong Liu, Manuel Llinás, Maria I Loza, Aristea Lubar, Leonardo Lucantoni, Isabelle Lucet, Louis Maes, Dalu Mancama, Nuha R Mansour, Sandra March, Sheena McGowan, Iset Medina Vera, Stephan Meister, Luke Mercer, Jordi Mestres, Alvine N Mfopa, Raj N Misra, Seunghyun Moon, John P Moore, Francielly Morais Rodrigues da Costa, Joachim Müller, Arantza Muriana, Stephen Nakazawa Hewitt, Bakela Nare, Carl Nathan, Nathalie Narraidoo, Sujeevi Nawaratna, Kayode K Ojo, Diana Ortiz, Gordana Panic, George Papadatos, Silvia Parapini, Kailash Patra, Ngoc Pham, Sarah Prats, David M Plouffe, Sally-Ann Poulsen, Anupam Pradhan, Celia Quevedo, Ronald J Quinn, Christopher A Rice, Mohamed Abdo Rizk, Andrea Ruecker, Robert St Onge, Rafaela Salgado Ferreira, Jasmeet Samra, Natalie G Robinett, Ulrich Schlecht, Marjorie Schmitt, Filipe Silva Villela, Francesco Silvestrini, Robert Sinden, Dennis A Smith, Thierry Soldati, Andreas Spitzmüller, Serge Maximilian Stamm, David J Sullivan, William Sullivan, Sundari Suresh, Brian M Suzuki, Yo Suzuki, S Joshua Swamidass, Donatella Taramelli, Lauve R Y Tchokouaha, Anjo Theron, David Thomas, Kathryn F Tonissen, Simon Townson, Abhai K Tripathi, Valentin Trofimov, Kenneth O Udenze, Imran Ullah, Cindy Vallieres, Edgar Vigil, Joseph M Vinetz, Phat Voong Vinh, Hoan Vu, Nao-Aki Watanabe, Kate Weatherby, Pamela M White, Andrew F Wilks, Elizabeth A Winzeler, Edward Wojcik, Melanie Wree, Wesley Wu, Naoaki Yokoyama, Paul H A Zollo, Nada Abla, Benjamin Blasco, Jeremy Burrows, Benoît Laleu, Didier Leroy, Thomas Spangenberg, Timothy Wells, Paul A Willis
A major cause of the paucity of new starting points for drug discovery is the lack of interaction between academia and industry. Much of the global resource in biology is present in universities, whereas the focus of medicinal chemistry is still largely within industry. Open source drug discovery, with sharing of information, is clearly a first step towards overcoming this gap. But the interface could especially be bridged through a scale-up of open sharing of physical compounds, which would accelerate the finding of new starting points for drug discovery...
July 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27444127/effects-of-seawater-transfer-and-fasting-on-the-endocrine-and-biochemical-growth-indices-in-juvenile-chum-salmon-oncorhynchus-keta
#13
Natsumi Taniyama, Nobuto Kaneko, Yu Inatani, Yasuyuki Miyakoshi, Munetaka Shimizu
Insulin-like growth factor (IGF)-I, IGF-binding protein (IGFBP)-1 and RNA/DNA ratio are endocrine and biochemical parameters used as growth indices in fish, however, they are subjected to environmental modulation. Chum salmon (Oncorhynchus keta) migrate from freshwater (FW) to seawater (SW) at fry/juvenile stage weighing around 1g and suffer growth-dependent mortality during the early phase of their marine life. In order to reveal environmental modulation of the IGF/IGFBP system and establish a reliable growth index for juvenile chum salmon, we examined effects of SW transfer and fasting on IGF-I, IGFBP-1 and RNA/DNA ratio, and correlated them to individual growth rate...
September 15, 2016: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/27420790/sneaker-males-affect-fighter-male-body-size-and-sexual-size-dimorphism-in-salmon
#14
Laura K Weir, Holly K Kindsvater, Kyle A Young, John D Reynolds
Large male body size is typically favored by directional sexual selection through competition for mates. However, alternative male life-history phenotypes, such as "sneakers," should decrease the strength of sexual selection acting on body size of large "fighter" males. We tested this prediction with salmon species; in southern populations, where sneakers are common, fighter males should be smaller than in northern populations, where sneakers are rare, leading to geographical clines in sexual size dimorphism (SSD)...
August 2016: American Naturalist
https://www.readbyqxmd.com/read/27334696/a-genetic-link-between-epigenetic-repressor-as1-as2-and-a-putative-small-subunit-processome-in-leaf-polarity-establishment-of-arabidopsis
#15
Yoko Matsumura, Iwai Ohbayashi, Hiro Takahashi, Shoko Kojima, Nanako Ishibashi, Sumie Keta, Ayami Nakagawa, Rika Hayashi, Julio Saéz-Vásquez, Manuel Echeverria, Munetaka Sugiyama, Kenzo Nakamura, Chiyoko Machida, Yasunori Machida
Although the DEAD-box RNA helicase family is ubiquitous in eukaryotes, its developmental role remains unelucidated. Here, we report that cooperative action between the Arabidopsis nucleolar protein RH10, an ortholog of human DEAD-box RNA helicase DDX47, and the epigenetic repressor complex of ASYMMETRIC-LEAVES1 (AS1) and AS2 (AS1-AS2) is critical to repress abaxial (ventral) genes ETT/ARF3 and ARF4, which leads to adaxial (dorsal) development in leaf primordia at shoot apices. Double mutations of rh10-1 and as2 (or as1) synergistically up-regulated the abaxial genes, which generated abaxialized filamentous leaves with loss of the adaxial domain...
2016: Biology Open
https://www.readbyqxmd.com/read/27267867/cardiovascular-disease-and-10-year-mortality-in-postmenopausal-women-with-clinical-features-of-polycystic-ovary-syndrome
#16
C Noel Bairey Merz, Leslee J Shaw, Ricardo Azziz, Frank Z Stanczyk, George Sopko, Glenn D Braunstein, Sheryl F Kelsey, Kevin E Kip, Rhonda M Cooper-DeHoff, B Delia Johnson, Viola Vaccarino, Steven E Reis, Vera Bittner, T Keta Hodgson, William Rogers, Carl J Pepine
BACKGROUND: Women with polycystic ovary syndrome (PCOS) have greater cardiac risk factor clustering but the link with mortality is incompletely described. OBJECTIVE: To evaluate outcomes in 295 postmenopausal women enrolled in the National Institutes of Health-National Heart, Lung, and Blood Institute (NIH-NHLBI) sponsored Women's Ischemia Syndrome Evaluation (WISE) study according to clinical features of PCOS. MATERIALS AND METHODS: A total of 25/295 (8%) women had clinical features of PCOS defined by a premenopausal history of irregular menses and current biochemical evidence of hyperandrogenemia, defined as the top quartile of androstenedione (≥701 pg/mL), testosterone (≥30...
September 2016: Journal of Women's Health
https://www.readbyqxmd.com/read/27258117/unique-inhibition-of-miltpain-a-new-cysteine-proteinase-from-the-milt-of-chum-salmon-by-o-phenanthroline-phenanthrenequinone-phenazine-and-acridine
#17
Choko Kawabata, Eiji Ichishima
Miltpain (EC 3.4.22.-) is a new cysteine proteinase that has been isolated from the milt of chum salmon (Oncorhynchus keta), and is strongly inhibited by cysteine proteinase inhibitors such as E-64, iodoacetamide, NEM, and PCMB. This paper deals with a unique feature, that the enzyme becomes inhibited by o-phenanthroline, phenanthrenequinone, phenanthrene, phenazine, and acridine which have some structural resemblance to a hydrophobic planar shape. Dixon plots showed that the inhibitions of the enzyme by o-phenanthroline and phenanthrenequinone were noncompetitive...
January 1997: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/27236419/atmospheric-depression-mediated-water-temperature-changes-affect-the-vertical-movement-of-chum-salmon-oncorhynchus-keta
#18
Takashi Kitagawa, Susumu Hyodo, Katsufumi Sato
The Sanriku coastal area, Japan, is one of the southern-most natural spawning regions of chum salmon Oncorhynchus keta. Here, we report their behavioral response to changes in ambient temperature after the passage of an atmospheric depression during the early spawning season. Before the passage, all electrically tagged fish moved vertically for several hours to depths below the shallow thermocline at >100 m. However, during the atmospheric depression, the salmon shortened the duration of their vertical movements and spent most time at the surface...
August 2016: Marine Environmental Research
https://www.readbyqxmd.com/read/27219293/bioaccumulation-of-hchs-and-ddts-in-organs-of-pacific-salmon-genus-oncorhynchus-from-the-sea-of-okhotsk-and-the-bering-sea
#19
Olga N Lukyanova, Vasiliy Yu Tsygankov, Margarita D Boyarova, Nadezhda K Khristoforova
Concentrations of isomers of hexachlorocyclohexane (α-, β-, γ-HCH) and dichlorodiphenyltrichloroethane (DDT) and its metabolites (dichlorodiphenyldichloroethane (DDD) and dichlorodiphenyldichloroethylene (DDE) were assessed in organs of the pink (Oncorhynchus gorbuscha), chum (Oncorhynchus keta), chinook (Oncorhynchus tshawytscha), and sockeye salmon (Oncorhynchus nerka), caught near the Kuril Islands (the northern-western part of the Pacific Ocean), in the Sea of Okhotsk and the Bering Sea. Pesticides have been found to accumulate in fish organs in the following: muscles < liver < eggs < male gonads...
August 2016: Chemosphere
https://www.readbyqxmd.com/read/27159685/a-real-time-polymerase-chain-reaction-method-for-the-identification-of-four-commercially-important-salmon-and-trout-species
#20
Junli Feng, Zhigang Wu, Xiao Xie, Zhiyuan Dai, Shasha Liu
A duplex quantitative real-time PCR (qPCR) assay was developed for rapid and accurate identification of four commercially important salmon and trout species (Oncorhynchus keta, Oncorhynchus nerka, Oncorhynchus mykiss, and Salmo salar) commonly used for production process of fish in China. The assays targeting the mitochondrial control region (CR) and 16S rRNA gene were able to simultaneously discriminate four target species and the family Salmonidae from processed as well as fresh fish. The qPCR efficiency of each reaction was calculated according to the standard curve, and the method was validated by amplification DNA extracted from single or artificial mixtures prepared with the reference salmon and trout species...
February 9, 2016: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
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