keyword
MENU ▼
Read by QxMD icon Read
search

Animal dispersal

keyword
https://www.readbyqxmd.com/read/28226232/the-epigenome-and-transcriptional-dynamics-of-fruit-ripening
#1
James Giovannoni, Cuong Nguyen, Betsy Ampofo, Silin Zhong, Zhangjun Fei
Fruit has evolved myriad forms that facilitate seed dispersal in varied environmental and ecological contexts. Because fleshy fruits become attractive and nutritious to seed-dispersing animals, the transition from unripe to ripe fruit represents a dramatic shift in survival strategy-from protecting unripe fruit against damaging animals to making it appealing to those same animals once ripened. For optimal fitness, ripening therefore must be tightly controlled and coordinated with seed development. Fruits, like many vegetative tissues of plants that contribute to human diets, are also subject to decay, which is enhanced as a consequence of the ripening transition...
February 22, 2017: Annual Review of Plant Biology
https://www.readbyqxmd.com/read/28224246/comparison-of-veterinary-drug-residue-results-in-animal-tissues-by-ultrahigh-performance-liquid-chromatography-coupled-to-triple-quadrupole-or-quadrupole-time-of-flight-tandem-mass-spectrometry-after-different-sample-preparation-methods-including-use-of-a-commercial
#2
Tarun Anumol, Steven J Lehotay, Joan Stevens, Jerry Zweigenbaum
Veterinary drug residues in animal-derived foods must be monitored to ensure food safety, verify proper veterinary practices, enforce legal limits in domestic and imported foods, and for other purposes. A common goal in drug residue analysis in foods is to achieve acceptable monitoring results for as many analytes as possible, with higher priority given to the drugs of most concern, in an efficient and robust manner. The U.S. Department of Agriculture has implemented a multiclass, multi-residue method based on sample preparation using dispersive solid phase extraction (d-SPE) for cleanup and ultrahigh-performance liquid chromatography-tandem quadrupole mass spectrometry (UHPLC-QQQ) for analysis of >120 drugs at regulatory levels of concern in animal tissues...
February 21, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28218805/functional-nonredundancy-of-elephants-in-a-disturbed-tropical-forest
#3
Nitin Sekar, Chia-Lo Lee, Raman Sukumar
Conservation efforts are often motivated by the threat of global extinction. Yet if conservationists had more information suggesting that the local extirpation of individual species could lead to undesirable ecological effects, conservationists might more frequently attempt to protect or restore such species across their range even if they are not in danger of global extinction. Scientists have seldom measured or quantitatively predicted the functional consequences of species loss, even for large, extinction-prone species that theory suggests should be functionally unique...
February 20, 2017: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/28216905/green-biosynthesis-characterization-in-vitro-antidiabetic-activity-and-investigational-acute-toxicity-studies-of-some-herbal-mediated-silver-nanoparticles-on-animal-models
#4
Kalakotla Shanker, Gottumukkala Krishna Mohan, Md Ashwaq Hussain, Naradala Jayarambabu, Poka Lakshmi Pravallika
: Diabetes is a metabolic disorder characterized by hyperglycemia, altered carbohydrate, lipid and protein metabolism. In recent studies, Nanoscience and nanotechnology are blazing fields for researchers; for researchers; of late there has been a prodigious excitement in the field of nanopharmacology to study silver nanoparticle (SNP) synthesis using natural products. Biological methods have been used to synthesize SNPs using medicinally active plants having an antidiabetic role, and this made us to assess the biologically synthesized SNPs from the seed extract of Psoralea corylifolia using 1 mM silver nitrate solution...
January 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28214773/the-usefulness-of-bone-biomarkers-for-monitoring-treatment-disease-a-comparative-study-in-osteolytic-and-osteosclerotic-bone-metastasis-models
#5
Marta Martín-Fernández, Karmele Valencia, Carolina Zandueta, Cristina Ormazábal, Susana Martínez-Canarias, Fernando Lecanda, Concepción de la Piedra
BACKGROUND: The skeleton is the most common site of colonization by metastatic cancers. Zoledronic acid (ZA) has been shown to be effective for the treatment of bone metastases regardless of whether the bone lesions are osteolytic or osteoblastic. Biochemical markers of bone turnover may be useful tools to quantify the degree of bone remodeling in the presence of bone metastases. The aim of this work was to establish the correlation between tumor dispersion (bioluminescence) and biochemical markers of bone turnover in two osteolytic and osteoblastic metastasis models in mice...
February 16, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28213243/multi-residue-analysis-of-36-priority-and-emerging-pollutants-in-marine-echinoderms-holothuria-tubulosa-and-marine-sediments-by-solid-liquid-extraction-followed-by-dispersive-solid-phase-extraction-and-liquid-chromatography-tandem-mass-spectrometry-analysis
#6
J Martín, A Zafra-Gómez, F Hidalgo, A J Ibáñez-Yuste, E Alonso, J L Vilchez
Marine echinoderms are filter-feeding invertebrates widely distributed along the coasts, and which are therefore extensively exposed to anthropogenic xenobiotics. They can serve as good sentinels for monitoring a large variety of contaminants in marine ecosystems. In this context, a multi-residue analytical method has been validated and applied to Holothuria tubulosa specimens and marine sediments for the determination of 36 organic compounds, which belong to some of the most problematic groups of emerging and priority pollutants (perfluoroalkyl compounds, estrogens, parabens, benzophenones, plasticizers, surfactants, brominated flame retardants and alkylphenols)...
May 1, 2017: Talanta
https://www.readbyqxmd.com/read/28212737/gene-delivery-of-apoptin-derived-peptide-using-an-adeno-associated-virus-vector-inhibits-glioma-and-prolongs-animal-survival
#7
Xiuli Zhong, Hengyu Zhao, Songhe Liang, DanYang Zhou, Wenjia Zhang, Lijie Yuan
Glioblastoma (GBM) is the most common malignant brain tumor in adults. We designed an adeno-associated virus (AAV) vector for intracranial delivery of the secreted HSP70-targeted peptide APOPTIN derived from Apoptin to GBM tumors. We applied this therapy to GBM models using human U87MG glioma cells and GBM xenograft models in mice. In U87MG and U251MG cells, conditioned medium from AAV2-apoptin-derived peptide (ADP)-expressing cells induced 83% and 78% cell death. In mice bearing intracranial U87MG tumors treated with AAV2-ADP, treatment resulted in a significant decrease in tumor growth and longer survival in mice bearing orthotopic invasive GBM brain tumors...
January 15, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28212396/plants-promote-mating-and-dispersal-of-the-human-pathogenic-fungus-cryptococcus
#8
Deborah J Springer, Rajinikanth Mohan, Joseph Heitman
Infections due to Cryptococcus are a leading cause of fungal infections worldwide and are acquired as a result of environmental exposure to desiccated yeast or spores. The ability of Cryptococcus to grow, mate, and produce infectious propagules in association with plants is important for the maintenance of the genetic diversity and virulence factors important for infection of animals and humans. In the Western United States and Canada, Cryptococcus has been associated with conifers and tree species other than Eucalyptus; however, to date Cryptococcus has only been studied on live Arabidopsis thaliana, Eucalyptus sp...
2017: PloS One
https://www.readbyqxmd.com/read/28207815/generalist-dispersers-promote-germination-of-an-alien-fleshy-fruited-tree-invading-natural-grasslands
#9
Martín Raúl Amodeo, María Belén Vázquez, Sergio Martín Zalba
Plants with animal-dispersed fruits seem to overcome the barriers that limit their spread into new habitats more easily than other invasive plants and, at the same time, they pose special difficulties for containment, control or eradication. The effects of animals on plant propagules can be very diverse, with positive, neutral or negative consequences for germination and recruitment. Moreover, the environmental conditions where the seeds are deposited and where the post-dispersal processes take place can be crucial for their fate...
2017: PloS One
https://www.readbyqxmd.com/read/28202802/multi-laboratory-survey-to-evaluate-salmonella-prevalence-in-diarrheic-and-non-diarrheic-dogs-and-cats-in-the-usa-between-2012-and-2014
#10
Renate Reimschuessel, Michael Grabenstein, Jake Guag, Sarah M Nemser, Kyunghee Song, Junshan Qiu, Kristin A Clothier, Barbara A Byrne, Stanley L Marks, Kyran Cadmus, Kristy Pabilonia, Susan Sanchez, Sreekumari Rajeev, Steve Ensley, Timothy S Frana, Albert E Jergens, Kimberly H Chappell, Siddhartha Thakur, Beverly Byrum, Jing Cui, Yan Zhang, Matthew M Erdman, Shelley C Rankin, Russell Daly, Seema Das, Laura Ruesch, Sara D Lawhon, Shuping Zhang, Timothy Baszler, Dubraska Diaz-Campos, Faye Hartmann, Ogi Okwumabua
Eleven laboratories collaborated to determine the periodic prevalence of Salmonella in a population of dogs and cats in the USA visiting veterinary clinics. Fecal samples (2965) solicited from 11 geographically dispersed veterinary testing laboratories were collected in 36 states between January 2012 and April 2014 and tested using a harmonized method. The overall study prevalence of Salmonella in cats (3 of 542) was <1%. Prevalence in dogs (60 of 2422) was 2.5%. Diarrhea was present in only 55% of positive dogs; however 3...
February 15, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28199318/acoustic-correlates-of-body-size-and-individual-identity-in-banded-penguins
#11
Livio Favaro, Marco Gamba, Claudia Gili, Daniela Pessani
Animal vocalisations play a role in individual recognition and mate choice. In nesting penguins, acoustic variation in vocalisations originates from distinctiveness in the morphology of the vocal apparatus. Using the source-filter theory approach, we investigated vocal individuality cues and correlates of body size and mass in the ecstatic display songs the Humboldt and Magellanic penguins. We demonstrate that both fundamental frequency (f0) and formants (F1-F4) are essential vocal features to discriminate among individuals...
2017: PloS One
https://www.readbyqxmd.com/read/28194103/reassessment-of-non-monosynaptic-excitation-from-the-motor-cortex-to-motoneurons-in-single-motor-units-of-the-human-biceps-brachii
#12
Tsuyoshi Nakajima, Toshiki Tazoe, Masanori Sakamoto, Takashi Endoh, Satoshi Shibuya, Leonardo A Elias, Rinaldo A Mezzarane, Tomoyoshi Komiyama, Yukari Ohki
Corticospinal excitation is mediated by polysynaptic pathways in several vertebrates, including dexterous monkeys. However, indirect non-monosynaptic excitation has not been clearly observed following transcranial electrical stimulation (TES) or cervicomedullary stimulation (CMS) in humans. The present study evaluated indirect motor pathways in normal human subjects by recording the activities of single motor units (MUs) in the biceps brachii (BB) muscle. The pyramidal tract was stimulated with weak TES, CMS, and transcranial magnetic stimulation (TMS) contralateral to the recording side...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28191888/promoter-shape-varies-across-populations-and-affects-promoter-evolution-and-expression-noise
#13
Ignacio E Schor, Jacob F Degner, Dermot Harnett, Enrico Cannavò, Francesco P Casale, Heejung Shim, David A Garfield, Ewan Birney, Matthew Stephens, Oliver Stegle, Eileen E M Furlong
Animal promoters initiate transcription either at precise positions (narrow promoters) or dispersed regions (broad promoters), a distinction referred to as promoter shape. Although highly conserved, the functional properties of promoters with different shapes and the genetic basis of their evolution remain unclear. Here we used natural genetic variation across a panel of 81 Drosophila lines to measure changes in transcriptional start site (TSS) usage, identifying thousands of genetic variants affecting transcript levels (strength) or the distribution of TSSs within a promoter (shape)...
February 13, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28188876/protein-based-nanoparticles-from-preparation-to-encapsulation-of-active-molecules
#14
REVIEW
Mohamad Tarhini, Hélène Greige-Gerges, Abdelhamid Elaissari
Nowadays, nanotechnology has become very integrated in the domain of pharmaceutical sciences since nanoparticle dispersions show various advantages as drug carriers. Among nanoparticles, the protein-based ones are of paramount importance. In fact, protein nanoparticles show many advantages over other types of nanoparticles, they are often non-toxic and biodegradable. In this review, the most common preparation methods of protein nanoparticles were targeted. In addition, the factors affecting their dispersions and the concepts of drug loading and drug release are also highlighted...
February 7, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28188481/internal-exposure-to-neutron-activated-56-mn-dioxide-powder-in-wistar-rats-part%C3%A2-1-dosimetry
#15
Valeriy Stepanenko, Tolebay Rakhypbekov, Keiko Otani, Satoru Endo, Kenichi Satoh, Noriyuki Kawano, Kazuko Shichijo, Masahiro Nakashima, Toshihiro Takatsuji, Aya Sakaguchi, Hiroaki Kato, Yuichi Onda, Nariaki Fujimoto, Shin Toyoda, Hitoshi Sato, Altay Dyussupov, Nailya Chaizhunusova, Nurlan Sayakenov, Darkhan Uzbekov, Aisulu Saimova, Dariya Shabdarbaeva, Mazhin Skakov, Alexandr Vurim, Vyacheslav Gnyrya, Almas Azimkhanov, Alexander Kolbayenkov, Kasym Zhumadilov, Yankar Kairikhanova, Andrey Kaprin, Vsevolod Galkin, Sergey Ivanov, Timofey Kolyzhenkov, Aleksey Petukhov, Elena Yaskova, Irina Belukha, Artem Khailov, Valeriy Skvortsov, Alexander Ivannikov, Umukusum Akhmedova, Viktoria Bogacheva, Masaharu Hoshi
There were two sources of ionizing irradiation after the atomic bombings of Hiroshima and Nagasaki: (1) initial gamma-neutron irradiation at the moment of detonation and (2) residual radioactivity. Residual radioactivity consisted of two components: radioactive fallout containing fission products, including radioactive fissile materials from nuclear device, and neutron-activated radioisotopes from materials on the ground. The dosimetry systems DS86 and DS02 were mainly devoted to the assessment of initial radiation exposure to neutrons and gamma rays, while only brief considerations were given for the estimation of doses caused by residual radiation exposure...
February 10, 2017: Radiation and Environmental Biophysics
https://www.readbyqxmd.com/read/28185279/variation-in-seed-size-is-structured-by-dispersal-syndrome-and-cone-morphology-in-conifers-and-other-nonflowering-seed-plants
#16
Andrew B Leslie, Jeremy M Beaulieu, Sarah Mathews
Seed size varies tremendously in plants and its evolution is influenced by multiple ecological and biological factors that are difficult to disentangle. In this study, we focus on understanding the role of seed dispersal by animals in the evolution of seed size in conifers, the most diverse extant nonflowering seed plant group. Relationships among seed size, dispersal syndrome, climate and cone morphology were analyzed across conifers using quantitative models of character evolution and phylogenetic regression techniques...
February 10, 2017: New Phytologist
https://www.readbyqxmd.com/read/28182628/migratory-timing-rate-routes-and-wintering-areas-of-white-crested-elaenia-elaenia-albiceps-chilensis-a-key-seed-disperser-for-patagonian-forest-regeneration
#17
Susana Patricia Bravo, Victor Rodolfo Cueto, Cristian Andrés Gorosito
Migratory animals often play key ecological roles within the communities they visit throughout their annual journeys. As a consequence of the links between biomes mediated by migrants, changes in one biome could affect remote areas in unpredictable ways. Migratory routes and timing of most Neotropical austral migrants, which breed at south temperate latitudes of South America and overwinter closer to or within tropical latitudes of South America, have yet to be described in detail. As a result, our understanding about how these birds provide links between South American biomes is almost non-existent...
2017: PloS One
https://www.readbyqxmd.com/read/28174661/movement-patterns-of-a-keystone-waterbird-species-are-highly-predictable-from-landscape-configuration
#18
Erik Kleyheeg, Jacintha G B van Dijk, Despina Tsopoglou-Gkina, Tara Y Woud, Dieuwertje K Boonstra, Bart A Nolet, Merel B Soons
BACKGROUND: Movement behaviour is fundamental to the ecology of animals and their interactions with other organisms, and as such contributes to ecosystem dynamics. Waterfowl are key players in ecological processes in wetlands and surrounding habitats through predator-prey interactions and their transportation of nutrients and other organisms. Understanding the drivers of their movement behaviour is crucial to predict how environmental changes affect their role in ecosystem functioning...
2017: Movement Ecology
https://www.readbyqxmd.com/read/28166251/risk-analysis-and-prediction-of-visceral-leishmaniasis-dispersion-in-s%C3%A3-o-paulo-state-brazil
#19
Anaiá da Paixão Sevá, Liang Mao, Fredy Galvis-Ovallos, Joanna Marie Tucker Lima, Denis Valle
Visceral leishmaniasis (VL) is an important neglected disease caused by a protozoan parasite, and represents a serious public health problem in many parts of the world. It is zoonotic in Europe and Latin America, where infected dogs constitute the main domestic reservoir for the parasite and play a key role in VL transmission to humans. In Brazil this disease is caused by the protozoan Leishmania infantum chagasi, and is transmitted by the sand fly Lutzomyia longipalpis. Despite programs aimed at eliminating infection sources, the disease continues to spread throughout the Country...
February 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28163228/a-novel-in-situ-silver-hyaluronan-bio-nanocomposite-fabrics-for-wound-and-chronic-ulcer-dressing-in-vitro-and-in-vivo-evaluations
#20
A M Abdel-Mohsen, J Jancar, R M Abdel-Rahman, L Vojtek, P Hyršl, M Dušková, H Nejezchlebová
In-situ formed hyaluronan/silver (HA/Ag) nanoparticles (NPs) were used to prepare composite fibers/fabrics for the first time. Different concentrations of silver nitrate (1, 2mg/100ml) were added at ambient temperature to sodium hyaluronate solution (40mg/ml), then the pH was increased to 8 by adding sodium hydroxide. The in-situ formed HA/Ag-NPs were used to prepare fibers/nonwoven fabrics by wet-dry-spinning technique (WDST). UV/vis spectroscopy, SEM, TEM, DLS, XPS, XRD and TGA were employed to characterize the structure and composition of the nanocomposite, surface morphology of fiber/fabrics, particle size of Ag-NPs, chemical interactions of Ag(0) and HA functional groups, crystallinity and thermal stability of the wound dressing, respectively...
February 3, 2017: International Journal of Pharmaceutics
keyword
keyword
31472
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"