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https://www.readbyqxmd.com/read/28808810/interactions-of-cisplatin-analogues-with-lysozyme-a-comparative-analysis
#1
Giarita Ferraro, Ilaria De Benedictis, Annamaria Malfitano, Giancarlo Morelli, Ettore Novellino, Daniela Marasco
The biophysical characterization of drug binding to proteins plays a key role in structural biology and in the discovery and optimization of drug discovery processes. The search for optimal combinations of biophysical techniques that can correctly and efficiently identify and quantify binding of metal-based drugs to their final target is challenging, due to the physicochemical properties of these agents. Different cisplatin derivatives have shown different citotoxicities in most common cancer lines, suggesting that they exert their biological activity via different mechanisms of action...
August 14, 2017: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/28808619/gastrointestinal-parasites-in-captive-and-free-ranging-cebus-albifrons-in-the-western-amazon-ecuador
#2
Sarah Martin-Solano, Gabriel A Carrillo-Bilbao, William Ramirez, Maritza Celi-Erazo, Marie-Claude Huynen, Bruno Levecke, Washington Benitez-Ortiz, Bertrand Losson
Currently, there is a lack of surveys that report the occurrence of gastrointestinal parasites in the white-headed capuchin monkey (Cebus albifrons). We therefore assessed the presence and richness (= number of different parasite genera) of parasites in C. albifrons in wildlife refuges (n = 11) and in a free-ranging group near a human village (n = 15) in the Ecuadorian Amazon. In the 78 samples collected (median of 3 samples per animal), we identified a total of 6 genera of gastrointestinal parasites, representing protozoa, nematodes, acanthocephalans and cestodes...
December 2017: International Journal for Parasitology. Parasites and Wildlife
https://www.readbyqxmd.com/read/28807308/presence-and-species-identity-of-rumen-flukes-in-cattle-and-sheep-in-the-netherlands
#3
H W Ploeger, L Ankum, L Moll, D C K van Doorn, G Mitchell, P J Skuce, R N Zadoks, M Holzhauer
The purpose of the study was to gain knowledge about the prevalence and identity of rumen flukes (RF) in cattle and sheep in the Netherlands. Routine faecal examinations of diagnostic submissions between May 2009 and September 2014 showed a mean annual herd or flock RF prevalence of 15.8% for cattle and 8.0% for sheep. Prevalence in cattle was higher after 2012 than before, which may reflect a change in detection method as well as an increase in true prevalence. During November and December 2014, an abattoir survey was conducted to allow for scoring of rumen fluke burden and to obtain specimens for molecular species characterization...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28805265/use-of-a-saliva-based-diagnostic-test-to-inform-on-tapeworm-infection-in-horses-in-the-uk
#4
K L Lightbody, J B Matthews, J G Kemp-Symonds, P A Lambert, C J Austin
BACKGROUND: Anthelmintic resistance combined with limited chemotherapeutic options has prompted a change in approaches to control of equine helminth infections. Targeted selective treatment strategies utilise diagnostics to reduce anthelmintic use by treating individuals with worm burdens or egg shedding levels above a set threshold. Whilst faecal egg count analysis has limitations for informing tapeworm treatment, a commercially available saliva-based diagnostic test accurately diagnoses horses with tapeworm infection...
August 14, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28804986/effects-of-hydroxycitric-acid-on-lipid-droplet-accumulation-in-chicken-embryos
#5
Mengling Peng, Longlong Li, Lei Yu, Chongyang Ge, Haitian Ma
This study was conducted to determine the impact of (-)-hydroxycitric acid ((-)-HCA) on biochemical indices and lipid metabolism parameters in chicken embryos. Two hundred and forty fertilized eggs were divided into six groups and injected with (-)-HCA at concentrations of 0, 0.1, 0.5, 1.0, 10.0 and 50 mg/kg (n = 40). After 19 days of incubation, serum and liver were collected for analysis of biochemical indices and lipid metabolism parameters. Results showed no significant differences on serum biochemical indices: 1-50 mg/kg (-)-HCA significantly increased serum glucose and hepatic glycogen contents (P < 0...
August 14, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28803969/molecular-detection-and-characterization-of-influenza-c-viruses-from-western-india
#6
V A Potdar, D D Hinge, M R Dakhave, A Manchanda, N Jadhav, P B Kulkarni, M S Chadha
Since 2003, India has had a well-established influenza surveillance network, though Influenza C virus was not the focus of study. We therefore retrospectively analyzed clinical samples from Pune, western India collected during January 2009 to August 2015, by real-time RT-PCR. Three of 2530 samples of patients with influenza-like illness (ILI) or severe acute respiratory illness (SARI) showed positivity for Influenza C virus infection, while 105 and 31 samples were positive for Influenza A and B viruses respectively...
August 10, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28801145/body-image-dissatisfaction-and-dietary-patterns-according-to-nutritional-status-in-adolescents
#7
Rita de Cássia Ribeiro-Silva, Rosemeire Leovigildo Fiaccone, Maria Ester Pereira da Conceição-Machado, Ana Santos Ruiz, Maurício Lima Barreto, Mônica Leila Portela Santana
OBJECTIVE: There is a lack of data on the association between body self-perception and eating patterns in Brazil. Thus, this study aimed to explore the relationship between body image dissatisfaction (BID) and eating patterns by the anthropometric status in adolescents. METHODS: A cross-sectional study of 1496 adolescents was conducted. The participants completed the Body Shape Questionnaire. Demographic, anthropometric, and socioeconomic data were collected, as well as information regarding the pubertal development and dietary intake...
August 8, 2017: Jornal de Pediatria
https://www.readbyqxmd.com/read/28800414/global-distribution-of-perfluorochemicals-pfcs-in-potential-human-exposure-source-a-review
#8
REVIEW
Jun-Meng Jian, Ying Guo, Lixi Zeng, Liu Liang-Ying, Xingwen Lu, Fei Wang, Eddy Y Zeng
Human exposure to perfluorochemicals (PFCs) has attracted mounting attention due to their potential harmful effects. Breathing, dietary intake, and drinking are believed to be the main routes for PFC entering into human body. Thus, we profiled PFC compositions and concentrations in indoor air and dust, food, and drinking water with detailed analysis of literature data published after 2010. Concentrations of PFCs in air and dust samples collected from home, office, and vehicle were outlined. The results showed that neutral PFCs (e...
August 8, 2017: Environment International
https://www.readbyqxmd.com/read/28797540/efficiency-of-two-sewage-treatment-systems-activated-sludge-and-natural-lagoons-for-helminth-egg-removal-in-morocco
#9
Sana Chaoua, Samia Boussaa, Ahmed Khadra, Ali Boumezzough
Morocco is a country known for its vulnerability of water resources because of its arid and semi-arid climate. Thus, recycled wastewater has been suggested for agricultural activities, but contamination of these wastewaters is a major concern. The current study aims to determine the occurrence of helminth eggs in urban wastewater and to evaluate the removal of these pathogens by two sewage treatment systems: activated sludge and natural lagoons. The samples of wastewater and sludge were collected from two wastewater treatment plants (WWTP) located in Marrakech and Chichaoua, Morocco...
August 7, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28797142/temporal-trends-of-mercury-and-organohalogen-contaminants-in-great-blue-heron-eggs-from-the-st-lawrence-river-qu%C3%A3-bec-canada-1991-2011-and-relationships-with-tracers-of-feeding-ecology
#10
Louise Champoux, Monique Boily
Since 1991, great blue heron (Ardea herodias) eggs have been collected and analyzed for mercury (Hg), persistent organic contaminants (OCs), brominated and non-brominated flame retardants (FRs) as well as stable isotopes δ(13)C and δ(15)N. In the present study, temporal trends of contaminants were analyzed in eggs sampled in four regions along the St. Lawrence River (Quebec, Canada) and inland sites using new and previously published data. Most contaminants declined significantly over time in most regions...
August 6, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28794984/seasonality-richness-and-prevalence-of-intestinal-parasites-of-three-neotropical-primates-alouatta-seniculus-ateles-hybridus-and-cebus-versicolor-in-a-fragmented-forest-in-colombia
#11
Silvia Rondón, Mario Ortiz, Cielo León, Nelson Galvis, Andrés Link, Camila González
Studies on parasites infecting non-human primates are essential to better understand the potential threat to humans of zoonoses transmission, particularly under the current processes of pervasive land use change and biodiversity loss. The natural ecosystems in the Middle Magdalena river basin in Colombia have suffered a dramatic reduction and transformation into pastures and agroindustrial monocultures, threatening their biodiversity, and probably affecting the dynamics between parasites and their hosts, as well as altering the disease transmission cycles between wild populations and humans...
December 2017: International Journal for Parasitology. Parasites and Wildlife
https://www.readbyqxmd.com/read/28792887/the-genetic-basis-for-the-selection-of-dairy-goats-with-enhanced-resistance-to-gastrointestinal-nematodes
#12
Felix Heckendorn, Anna Bieber, Steffen Werne, Anastasios Saratsis, Veronika Maurer, Chris Stricker
Gastrointestinal nematodes (GIN) severely affect small ruminant production worldwide. Increasing problems of anthelmintic resistance have given strong impetus to the search for alternative strategies to control GIN. Selection of animals with an enhanced resistance to GIN has been shown to be successful in sheep. In goats, the corresponding information is comparatively poor. Therefore, the present study was designed to provide reliable data on heritabilities of and genetic correlations between phenotypic traits linked to GIN and milk yield in two major dairy goat breeds (Alpine and Saanen)...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28792415/early-development-and-life-cycle-of-contracaecum-multipapillatum-s-l-from-a-brown-pelican-pelecanus-occidentalis-in-the-gulf-of-california-mexico
#13
Isabel Valles-Vega, Dolores Molina-Fernández, Rocío Benítez, Sergio Hernández-Trujillo, Francisco Javier Adroher
The initial developmental stages of Contracaecum multipapillatum (von Drasche, 1882) Lucker, 1941 sensu lato were studied using eggs obtained from the uteri of female nematodes (genetically identified) found in a brown pelican Pelecanus occidentalis from Bahía de La Paz (Gulf of California, Mexico). Optical microscopy revealed a smooth or slightly rough surface to the eggs. Egg dimensions were approximately 53 × 43 µm, although after the larvae had developed inside, egg size increased to 66 × 55 µm. Hatching and survival of the larvae were greater at 15°C than at 24°C, and increased salinity resulted in a slight increase in hatching but seemed to reduce survival at 24°C, but not at 15°C...
August 9, 2017: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/28790921/fatty-acid-profile-of-neutral-and-polar-lipid-fraction-of-wild-eggs-and-hatchlings-from-wild-and-captive-reared-broodstock-of-octopus-vulgaris
#14
Juan Estefanell, Antonio Mesa-Rodríguez, Besay Ramírez, Antonio La Barbera, Juan Socorro, Carmen María Hernandez-Cruz, María Soledad Izquierdo
The culture of Octopus vulgaris is constrained by unsolved problems in paralarvae rearing, mainly associated to the unknown nutritional requirements of this species in early stages. In this article we studied the fatty acid profile (total, neutral, and polar lipid fractions) in wild eggs and wild hatchlings, collected in Gran Canaria (SW) (Spain) with artificial dens, in comparison to hatchlings obtained in captivity from broodstock fed on trash fish species. Total lipids were 11.5-13.5% dw, with the polar fraction representing a 70...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28782297/a-reciprocal-inhibition-between-arid1-and-met1-in-male-and-female-gametes-in-arabidopsis
#15
Lei Li, Wenye Wu, Youshang Zhao, Binglian Zheng
Both female and male gametophytes harbor companion cells and gametes. MET1, a DNA methyltransferase, is down-regulated in companion cells. However, how MET1 is differentially regulated in gametophytes remains unexplored. ARID1, a transcription factor that is specifically depleted in sperm cells, is occupied by MET1-dependent CG methylation. Here, we show that MET1 confines ARID1 to the vegetative cell of male gametes, but ARID1 conversely represses MET1 in the central cell of female gametes. Compared to the vegetative cell-localization in wild type pollen, ARID1 expands to sperm cells in the met1 mutant...
August 7, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28779946/fertility-disturbances-of-dimethylacetamide-and-glycerol-in-rooster-sperm-diluents-discrimination-among-effects-produced-pre-and-post-freezing-thawing-process
#16
F M K Abouelezz, M A M Sayed, J Santiago-Moreno
With avian sperm cryopreservation protocols, the most widely used cryoprotectants (CPAs) are the glycerol (GLY; in gradual freezing: in-straw freezing method), and the dimethylacetamide (DMA; in pellets by plunging into liquid nitrogen: in-pellet rapid freezing method). Use of both methods results in a small portion of thawed live sperm with lesser fertilizing ability compared with the semen samples immediately after collection. This study was conducted to assess the pre-freezing damage occurring to the sperm due to the interaction with the cryoprotectants (CPAs) GLY (8%) and DMA (5%), as well as the post-freezing damage resulting from both freezing methods Data for each treatment, in fresh and frozen-thawed samples, were compared for sperm motility, fertilizing capacity and sperm-egg penetration holes/germinal disc (SP holes/GD)...
July 29, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28779857/hormonal-changes-over-the-spawning-cycle-in-the-female-three-spined-stickleback-gasterosteus-aculeatus
#17
Chrysoula Roufidou, Monika Schmitz, Ian Mayer, Marion Sebire, Ioanna Katsiadaki, Yi Ta Shao, Bertil Borg
Female three-spined sticklebacks are batch spawners laying eggs in a nest built by the male. We sampled female sticklebacks at different time points, when they were ready to spawn and 6, 24, 48 and 72 hours post-spawning (hps) with a male. Following spawning, almost all females (15 out of 19) had ovulated eggs again at Day 3 post-spawning (72hps). At sampling, plasma, brain and pituitaries were collected, and the ovary and liver were weighed. Testosterone (T) and estradiol (E2) were measured by radioimmunoassay...
August 2, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28770245/molecular-characterization-and-phylogenetic-analyses-of-virulent-infectious-bronchitis-viruses-isolated-from-chickens-in-eastern-saudi-arabia
#18
Maged Gomaa Hemida, Mohammed A Al-Hammadi, Abdul Hafeed S Daleb, Cecilio R Gonsalves
Infectious bronchitis virus (IBV) is one of the major respiratory viral threats for chickens. Despite the intensive application of IBV vaccines, several outbreaks have been reported worldwide. Here, we report several IBV outbreaks in thirteen poultry farms in Eastern Saudi Arabia (ESA) from 2013 to 2014. The main goals of the current study were as follows: (1) isolation and molecular characterization of the currently circulating strains in ESA (Al-Hasa, Dammam, and Buqayq) and (2) evaluation of the immune status of these birds to IBV...
June 2017: Virusdisease
https://www.readbyqxmd.com/read/28770048/environmental-stress-linked-to-consumption-of-maternally-derived-carotenoids-in-brown-trout-embryos-salmo-trutta
#19
Laetitia G E Wilkins, Lucas Marques da Cunha, Gaëtan Glauser, Armelle Vallat, Claus Wedekind
The yellow, orange, or red colors of salmonid eggs are due to maternally derived carotenoids whose functions are not sufficiently understood yet. Here, we studied the significance of naturally acquired carotenoids as maternal environmental effects during embryo development in brown trout (Salmo trutta). We collected eggs from wild females, quantified their egg carotenoid content, fertilized them in vitro in full-factorial breeding blocks to separate maternal from paternal effects, and raised 3,278 embryos singly at various stress conditions until hatching...
July 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28769676/a-new-species-of-rhodnius-from-brazil-hemiptera-reduviidae-triatominae
#20
João Aristeu da Rosa, Hernany Henrique Garcia Justino, Juliana Damieli Nascimento, Vagner José Mendonça, Claudia Solano Rocha, Danila Blanco de Carvalho, Rossana Falcone, Maria Tercília Vilela de Azeredo Oliveira, Kaio Cesar Chaboli Alevi, Jader de Oliveira
A colony was formed from eggs of a Rhodnius sp. female collected in Taquarussu, Mato Grosso do Sul, Brazil, and its specimens were used to describe R. taquarussuensissp. n. This species is similar to R. neglectus, but distinct characters were observed on the head, thorax, abdomen, female external genitalia and male genitalia. Chromosomal differences between the two species were also established.
2017: ZooKeys
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