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https://www.readbyqxmd.com/read/28098995/a-chemometrics-approach-to-the-investigation-of-the-intraspecific-variability-of-the-volatile-oil-of-eupatorium-tremulum-from-southern-brazil
#1
Tiago J T de Souza, Sérgio A L Bordignon, Miriam A Apel
Eupatorium tremulum is a South American shrub reported to cause cattle digestive intoxication, of which the volatile oil, mainly composed by bisabolane- and amorphane-type sesquiterpenoids, exhibits high quantitative variability. This report describes the application of chemometric tools for the identification of volatile compounds that characterize phenophasical changes in the plant. Preblooming, blooming, and postblooming specimens were paired-sampled and submitted to hydrodistillation and GC-MS analysis...
January 18, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28089914/arachidonic-acid-with-taurine-enhances-pulmonary-absorption-of-macromolecules-without-any-serious-histopathological-damages
#2
Masateru Miyake, Takanori Minami, Hiroyuki Yamazaki, Chie Emoto, Tadashi Mukai, Hajime Toguchi
Therapeutic peptides and protein are being used in several indications; however, their poor permeability still remains to be solved. This study focused on the pulmonary route of macromolecules. First, the effects of arachidonic acid (AA) as an absorption enhancer on drug serum concentration, after intratracheal administration, were investigated in rats. Second, the safety of AA was assessed in rats in an acute toxicity study for 7 days. AA enhanced the exposure of both interferon-α (IFN-α) and fluorescein isothiocyanate 4000 (FD-4)...
January 13, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28089549/modified-live-infectious-bursal-disease-virus-ibdv-vaccine-delays-infection-of-neonatal-broiler-chickens-with-variant-ibdv-compared-to-turkey-herpesvirus-hvt-ibdv-vectored-vaccine
#3
Shanika Kurukulasuriya, Khawaja Ashfaque Ahmed, Davor Ojkic, Thushari Gunawardana, Kalhari Goonewardene, Ashish Gupta, Betty Chow-Lockerbie, Shelly Popowich, Philip Willson, Suresh K Tikoo, Susantha Gomis
Chickens are commonly processed around 35-45days of age in broiler chicken industry hence; diseases that occur at a young age are of paramount economic importance. Early age infection with infectious bursal disease virus (IBDV) results in long-lasting immunosuppression and profound economic losses. To our knowledge, this is the first study comparing the protection efficacy of modified live (MdLV) IBDV and herpesvirus turkey (HVT)-IBDV vaccines against early age variant IBDV (varIBDV) infection in chicks. Experiments were carried out in IBDV maternal antibody (MtAb) positive chicks (n=330), divided into 6 groups (n=50-60/group), namely Group 1 (saline), Group 2 (saline+varIBDV), Group 3 (HVT-IBDV), Group 4 (HVT-IBDV+varIBDV), Group 5 (MdLV) and Group 6 (MdLV+varIBDV)...
January 12, 2017: Vaccine
https://www.readbyqxmd.com/read/28088858/from-blue-to-green-fine-tuning-of-photoluminescence-and-electrochemiluminescence-in-bifunctional-organic-dyes
#4
Fabio Rizzo, Federico Polo, Gregorio Bottaro, Simona Fantacci, Sabrina Antonello, Lidia Armelao, Silvio Quici, Flavio Maran
We describe the synthesis, computational analysis, photophysics, electrochemistry and electrochemiluminescence (ECL) of a series of compounds formed of two triphenylamines linked by a fluorene or spirobifluorene bridge. The phenylamine moieties were modified at the para-position of the two external rings by electron-withdrawing or electron-donating substituents. These modifications allowed for fine tuning of the photoluminescence (PL) and ECL emission from blue to green, with an overall wavelength span of 73 (PL) and 67 (ECL) nm, respectively...
January 15, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28081235/comprehensive-rna-seq-profiling-to-evaluate-the-sheep-mammary-gland-transcriptome-in-response-to-experimental-mycoplasma-agalactiae-infection
#5
Rohini Chopra-Dewasthaly, Melanie Korb, René Brunthaler, Reinhard Ertl
Mycoplasma agalactiae is a worldwide serious pathogen of small ruminants that usually spreads through the mammary route causing acute to subacute mastitis progressing to chronic persistent disease that is hard to eradicate. Knowledge of mechanisms of its pathogenesis and persistence in the mammary gland are still insufficient, especially the host-pathogen interplay that enables it to reside in a chronic subclinical state. This study reports transcriptome profiling of mammary tissue from udders of sheep experimentally infected with M...
2017: PloS One
https://www.readbyqxmd.com/read/28072893/a-pediatric-application-of-the-strac-regional-hospital-trauma-registry-database-pediatric-trauma-deaths-in-south-central-texas-during-2004-2013
#6
Michelle Buehner, Jay Aden, Mathew Borgman, Preston Love, Brandi Wright, Mary Edwards
The purpose of this study was to define the demographics of pediatric traumatic injuries and to understand the predictive value of injury type, prehospital, and emergency department (ED) data regarding the mortality of pediatric trauma patients (<14 years of age) in South Central Texas. We report a retrospective review of pediatric trauma patients presenting to Trauma Service Area P in South Central Texas during 2004-2013. The primary outcome was mortality; secondary outcomes were ventilator days, hospital days, and intensive care unit stay...
January 1, 2017: Texas Medicine
https://www.readbyqxmd.com/read/28063923/phylogenetic-analysis-of-hepatitis-e-virus-strains-isolated-from-slaughter-age-pigs-in-colombia
#7
Jorge E Forero D, Cristian Gutiérrez-Vergara, Jaime Parra S, Guillermo Correa L, Berardo Rodríguez, Lina A Gutiérrez, Francisco Javier Díaz, Albeiro López-Herrera
Hepatitis E virus (HEV) is a zoonotic virus that causes acute hepatitis in humans, and can be transmitted via the fecal-oral route. Pigs are considered to be a reservoir for this infection-mainly where the disease is not endemic. In a previous study conducted in Antioquia, which is a region in Colombia where the production and consumption of pork meat is higher than in the rest of the country, the presence of anti-HEV IgG-type antibodies was reported in slaughter-age pigs. Aiming to identify the HEV genotype circulating in swine, animal liver, and feces samples from five swine cattle slaughterhouses located in six different sub-regions of Antioquia were collected...
January 4, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28063707/a-novel-vaccinological-evaluation-of-intranasal-vaccine-and-adjuvant-safety-for-preclinical-tests
#8
Eita Sasaki, Madoka Kuramitsu, Haruka Momose, Kouji Kobiyama, Taiki Aoshi, Hiroshi Yamada, Ken J Ishii, Takuo Mizukami, Isao Hamaguchi
Vaccines are administered to healthy humans, including infants, so the safety and efficacy must be very high. Therefore, evaluating vaccine safety in preclinical and clinical studies, according to World Health Organization guidelines, is crucial for vaccine development and clinical use. A change in the route of administration is considered to alter a vaccine's immunogenicity. Several adjuvants have also been developed and approved for use in vaccines. However, the addition of adjuvants to vaccines may cause unwanted immune responses, including facial nerve paralysis and narcolepsy...
January 4, 2017: Vaccine
https://www.readbyqxmd.com/read/28058783/characterization-of-phase-i-and-phase-ii-hepatic-metabolism-and-reactive-intermediates-of-larrea-nitida-cav-and-its-lignan-compounds
#9
Hyesoo Jeong, Soolin Kim, Jimin Lee, Jin Young Park, Wenmei Zhou, Xiyuan Liu, So Dam Kim, Yun Seon Song, Chang-Young Jang, Sei-Ryang Oh, Sangho Choi, Minsun Chang
Larrea nitida Cav. (LNC), which belongs to the family Zygophyllaceae, is widely indigenous and used in South America to treat various pathological conditions. It contains the antioxidant and antiinflammatory but toxic nordihydroguaiaretic acid (NDGA) as well as O-methylated metabolite of NDGA (MNDGA) as bioactive compounds. The hepatic metabolism-based toxicological potential of extracts of LNC (LNE), NDGA, and MNDGA has not previously been reported. The present study aimed to characterize the phase I and phase II hepatic metabolism and reactive intermediates of LNE, NDGA, and MNDGA and their effects on the major drug-metabolizing enzymes in vitro and ex vivo...
January 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28045339/imaging-biodistribution-and-efficacy-evaluation-of-188-re-human-serum-albumin-microspheres-via-intraarterial-route-in-an-orthotopic-hepatoma-model
#10
Liang-Cheng Chen, Ya-Jen Chang, Su-Jung Chen, Wan-Chi Lee, Chih-Hsien Chang, Te-Wei Lee, Jui-Hung Shien
Purpose Liver cancer is the second most common cause of death worldwide. This study was to investigate the SPECT/CT, ultrasound, biodistribution and therapeutic evaluation of (188)Re-human serum albumin microspheres ((188)Re-HSAM) in the GP7TB orthotopic hepatoma rat model. Materials and methods HSAM was labeled with (188)Re by using home-made kit and microwave system. The (188)Re-HSAM was administered via intraarterial route. The in vivo distribution of (188)Re-HSAM was determined by biodistribution analysis and nanoSPECT/CT system...
January 3, 2017: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/28045227/severe-outbreak-of-sorbitol-fermenting-escherichia-coli-o157-via-unpasteurized-milk-and-farm-visits-finland-2012
#11
A Jaakkonen, S Salmenlinna, R Rimhanen-Finne, H Lundström, S Heinikainen, M Hakkinen, S Hallanvuo
Shiga toxin-producing, sorbitol-fermenting Escherichia coli O157 (SF O157) has emerged as a cause of severe human illness. Despite frequent human findings, its transmission routes and reservoirs remain largely unknown. Foodborne transmission and reservoir in cattle have been suspected, but with limited supporting evidence. This study describes the outbreak of SF O157 that occurred in Finland in 2012. The outbreak originated from a recreational farm selling unpasteurized milk, as revealed by epidemiologic and microbiological investigations, and involved six hospitalized children and two asymptomatic adults with culture-confirmed infection...
January 3, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28045216/zika-virus-and-pregnancy-an-overview
#12
Newton Sérgio de Carvalho, Beatriz Freitas de Carvalho, Bruna Dóris, Evellyn Silverio Biscaia, Cyllian Arias Fugaça, Lúcia de Noronha
In May 2015, the first episodes of Zika virus infection of the Latin America were confirmed in Brazil, where currently 196 976 cases were reported. The main route of transmission occurs by Aedes mosquitoes, and the most common symptoms are maculopapular rash, fever, conjunctivitis, polyarthralgia, and periarticular edema. However, the infection is asymptomatic in 80% of the cases. The congenital infection is characterized when the transmission to the fetus occurs during pregnancy, but the mechanisms of how the virus infects the placenta remain unclear...
January 3, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28043569/strain-differentiation-of-13-indigenous-mycobacterium-bovis-isolates-from-infected-cattle-by-restriction-fragment-length-polymorphism-analysis
#13
Shima Rezaee, Naheed Mojgani, Nader Mosavari, Mehrdad Hashmi
Mycobacterium bovis is mainly detected in cattle throughout the world. This bacterium is considered the main causative agent of tuberculosis in man and animals. M. bovis is also reported to be endemic in badgers and in farmed and feral deer. The disease caused by M. bovis is a slow progressive disease with clinical signs not apparent until late in the disease process. key factors for effective control of tuberculosis includes rapid detection, adequate therapy, and contact tracing to halt further transmission...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28031965/analysis-of-the-activation-routes-induced-by-different-metal-oxide-nanoparticles-on-human-lung-epithelial-cells
#14
Rosana Simón-Vázquez, Tamara Lozano-Fernández, Angela Dávila-Grana, África González-Fernández
Nanoparticles (Nps) can induce toxicity in the lung by accidental or intentional exposure. The main objective of the study reported here was to characterize the effect that four metal oxide Nps (CeO2, TiO2, Al2O3 and ZnO) had at the cellular level on a human lung epithelial cell line. This goal was achieved by studying the capacity of the Nps to activate the main mitogen-activated protein kinases (MAPKs) and the nuclear factor NFκB. Only ZnO Nps were able to activate all of the MAPKs and the release of Zn(2+) ions was the main cause of activation...
June 2016: Future Science OA
https://www.readbyqxmd.com/read/28011167/trypanosoma-brucei-brucei-traverses-different-biological-barriers-differently-and-may-modify-the-host-plasma-membrane-in-the-process
#15
Monica Namayanja, Yan Dai, Barbara Nerima, Enock Matovu, Zhao-Rong Lun, George W Lubega, Chen Zhengjun
Trypanosoma brucei are extracellular hemoflagellate protozoan parasites and one of the causative agents of a devastating zoonotic disease called African Trypanosomiasis. In humans, the disease is caused by Trypanosoma brucei rhodensiense and Trypanosoma brucei gambiense, which cross the blood brain barrier (BBB) causing neurological disorders which culminate in death if untreated. In some domestic animals and laboratory rodents, Trypanosoma brucei brucei causes a disease similar to that in humans. The mechanism by which Trypanosoma brucei brucei invade biological barriers including the BBB has not been fully elucidated...
December 20, 2016: Experimental Parasitology
https://www.readbyqxmd.com/read/28007938/an-updated-comprehensive-systematic-review-of-cladophialophora-bantiana-and-analysis-of-epidemiology-clinical-characteristics-and-outcome-of-cerebral-cases
#16
A Serda Kantarcioglu, Josep Guarro, Sybren De Hoog, Hulya Apaydin, Nuri Kiraz
Cladophialophora bantiana is a phaeoid fungus that only rarely has been isolated from sources other than the human brain. It has a particular tropism for the central nervous system (CNS). We have integrated and updated large-scale data related to several aspects of C. Bantiana and reviewed all the available reports on its cerebral infections, focusing on their geographical distribution, infection routes, immune status of infected individuals, type and location of infections, clinical manifestations and treatment and outcome, briefly looking over the spectrum of other disease entities associated with C...
December 22, 2016: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/28003487/mildly-acidic-ph-triggers-an-irreversible-conformational-change-in-the-fusion-domain-of-herpes-simplex-virus-1-glycoprotein-b-and-inactivation-of-viral-entry
#17
Darin J Weed, Suzanne M Pritchard, Floricel Gonzalez, Hector C Aguilar, Anthony V Nicola
: Herpes simplex virus (HSV) entry into a subset of cells requires endocytosis and endosomal low-pH. Pre-exposure of isolated virions to mildly acidic pH of 5 to 6 partially inactivates HSV infectivity in an irreversible manner. Acid inactivation is a hallmark of viruses that enter via low-pH pathways; this occurs by pre-triggering conformational changes essential for fusion. The target and mechanism(s) of low-pH inactivation of HSV are unclear. Here, low-pH treated HSV-1 was defective in fusion activity yet retained normal levels of attachment to cell surface heparan sulfate and binding to nectin-1 receptor...
December 21, 2016: Journal of Virology
https://www.readbyqxmd.com/read/28002793/next-generation-sequencing-of-vitreoretinal-lymphomas-from-small-volume-intraocular-liquid-biopsies-new-routes-to-targeted-therapies
#18
Andi K Cani, Daniel H Hovelson, Hakan Demirci, Mark W Johnson, Scott A Tomlins, Rajesh C Rao
BACKGROUND: Vitreoretinal lymphoma (VRL), the most common lymphoma of the eye, is a rare form of primary CNS lymphoma (PCNSL). Most frequently a high-grade diffuse large B cell lymphoma, VRL can cause vision loss and its prognosis remains dismal: the overall survival time is 3 years after diagnosis. Radiotherapy and chemotherapy are used but remain frequently ineffective, and no standardized treatment regimen exists. Furthermore, no biologically targeted treatments, based on the genetic profile of the tumor, are available, as VRL has hitherto not comprehensively been profiled...
December 17, 2016: Oncotarget
https://www.readbyqxmd.com/read/27997208/alternative-route-to-silicene-synthesis-via-surface-reconstruction-on-h-mosi2-crystallites
#19
Cameron Volders, Ehsan Monazami, Gopalakrishnan Ramalingam, Petra Reinke
Silicene is a two-dimensional material with a Dirac-type band structure and it is particularly attractive due to its potential for integration with Si-based technology. The primary focus has been to grow single silicene layers and understand how the electronic structure is affected by the substrate and the phase transition between low- and high-buckling configurations. Typically, silicene is synthesized by depositing monolayer amounts of silicon onto a heated Ag(111) surface; however, other growth substrates such as Ir(111) and ZrB2 have been studied recently...
December 27, 2016: Nano Letters
https://www.readbyqxmd.com/read/27989617/the-application-of-pbpk-models-in-estimating-human-brain-tissue-manganese-concentrations
#20
Siva P Ramoju, Donald R Mattison, Brittany Milton, Doreen McGough, Natalia Shilnikova, Harvey J Clewell, Miyoung Yoon, Michael D Taylor, Daniel Krewski, Melvin E Andersen
Mn is an essential element that causes neurotoxicity in humans when inhaled at high concentrations. This metal has well-recognized route-dependent differences in absorption, with greater proportionate uptake for inhalation versus dietary exposure. Physiologically-based pharmacokinetic (PBPK) models for Mn have included these route specific differences in uptake and their effect on delivery of Mn to target tissues via systemic circulation. These PBPK models include components describing ingestion and inhalation, homeostatic control (concentration dependent biliary elimination and gastrointestinal absorption), and delivery to target sites within the brain...
December 15, 2016: Neurotoxicology
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