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https://www.readbyqxmd.com/read/28239974/simultaneous-monitoring-of-monoamines-amino-acids-nucleotides-and-neuropeptides-by-liquid-chromatography-tandem-mass-spectrometry-and-its-application-to-neurosecretion-in-bovine-chromaffin-cells
#1
Aneta Wojnicz, José Avendaño-Ortiz, Ricardo de Pascual, Lucía Ruiz-Pascual, Antonio G García, Ana Ruiz-Nuño
The primary functions of adrenal medullary chromaffin cells are the synthesis and storage in their chromaffin vesicles of the catecholamines noradrenaline (NA) and adrenaline (AD), and their subsequent release into the bloodstream by Ca(2+) -dependent exocytosis under conditions of fear or stress (fight or flight response). Several monoamines, nucleotides and opiates, such as leucine-enkephalin (LENK) and methionine-enkephalin (MENK), are also co-stored and co-released with the catecholamines. However, other neurotransmitters have not been studied in depth...
August 2016: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/28239935/isolation-and-characterization-of-an-atypical-siberian-sturgeon-herpesvirus-strain-in-russia-novel-north-american-acipenserid-herpesvirus-2-strain-in-europe
#2
A Doszpoly, I M Kalabekov, R Breyta, I S Shchelkunov
Siberian sturgeon herpesvirus (SbSHV) was isolated in Russia for the first time in 2006. Nine SbSHV isolates were recovered from different fish hatcheries producing the same cytopathic effect in cell cultures, the same clinical signs and mortality kinetics in virus-infected fish and the same virus neutralization pattern and shared identical nucleotide sequences. In 2011, a new isolate was recovered from juvenile sturgeon, which caused completely different cytopathic effect. That isolate was not readily neutralized by Siberian sturgeon hyperimmune antisera, and its DNA was not recognized by the routine PCR developed for SbSHV detection...
February 27, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28239920/neuropsychiatric-symptoms-in-south-east-asian-patients-with-mild-cognitive-impairment-and-dementia-prevalence-subtypes-and-risk-factors
#3
Chathuri Yatawara, Shaun Hiu, Laura Tan, Nagaendran Kandiah
BACKGROUND: The subtypes and risk factors of neuropsychiatric symptoms remain largely unexplored in South-East Asian populations. OBJECTIVE: We investigated the prevalence, subtypes, and risk factors, namely, demographic, medical morbidity, and cognitive impairment associated with neuropsychiatric symptoms in a South-East Asian cohort of patients with mild cognitive impairment (MCI) and dementia. METHODS: A clinical cohort of 38 MCI and 198 mild-moderate dementia patients were assessed using the Neuropsychiatric Inventory-Questionnaire...
February 27, 2017: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28239908/pathogenicity-of-conidiobolus-coronatus-and-fusarium-solani-in-mouse-models
#4
Yadi Li, Xiangang Fang, Xiaoqian Zhou, Suying Geng, Yuxin Wang, Xiumin Yang
To study the pathogenicity of Conidiobolus coronatus (C. coronatus) and Fusarium solani (F. solani) in animal models. Immunocompromised mice were treated with cyclophosphamide and prednisolone via intraperitoneal injection before and after inoculation. According to pathogenic characteristics of different fungi, C. coronatus was used to infect mice via intravenous inoculation, intraperitoneal inoculation, gastrointestinal infusion and intradermal inoculation methods. And F. solani was used to infect mice by inoculation via the abraded or normal skin...
February 27, 2017: Mycoses
https://www.readbyqxmd.com/read/28239878/-appeals-to-nature-in-marriage-equality-debates-a-content-analysis-of-newspaper-and-social-media-discourse
#5
Cliodhna O'Connor
In May 2015, Ireland held a referendum to legalize same-sex marriage, which passed with 62% of the vote. This study explores the role played by 'appeals to nature' in the referendum debate. Little research has investigated how biological attributions are spontaneously generated in real-world discourse regarding sexual rights. Through content analysis of newspaper and Twitter discussion of the referendum, this study aims to (1) establish the frequency of appeals to nature and their distribution across the various 'sides' of the debate and (2) analyse the forms these natural claims took and the rhetorical functions they fulfilled...
February 27, 2017: British Journal of Social Psychology
https://www.readbyqxmd.com/read/28239876/the-potential-of-volatile-organic-compounds-for-the-detection-of-active-disease-in-patients-with-ulcerative-colitis
#6
A Smolinska, A G L Bodelier, J W Dallinga, A A M Masclee, D M Jonkers, F-J van Schooten, M J Pierik
BACKGROUND: To optimise treatment of ulcerative colitis (UC), patients need repeated assessment of mucosal inflammation. Current non-invasive biomarkers and clinical activity indices do not accurately reflect disease activity in all patients and cannot discriminate UC from non-UC colitis. Volatile organic compounds (VOCs) in exhaled air could be predictive of active disease or remission in Crohn's disease. AIM: To investigate whether VOCs are able to differentiate between active UC, UC in remission and non-UC colitis...
February 26, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28239835/fathers-infant-directed-speech-in-a-small-scale-society
#7
Tanya Broesch, Gregory A Bryant
When speaking to infants, mothers often alter their speech compared to how they speak to adults, but findings for fathers are mixed. This study examined interactions (N = 30) between fathers and infants (Mage  ± SD = 7.8 ± 4.3 months) in a small-scale society in Vanuatu and two urban societies in North America. Fundamental frequency (F0 ) and speech rate were measured in infant-directed and adult-directed speech. When speaking to infants, fathers in both groups increased their F0 range, yet only Vanuatu fathers increased their average F0 ...
February 27, 2017: Child Development
https://www.readbyqxmd.com/read/28239798/effect-of-fibroblast-like-cells-of-mesenchymal-origin-of-cytotoxic-activity-of-lymphocytes-against-nk-sensitive-target-cells
#8
A Yu Lupatov, Ya S Kim, O A Bystrykh, I V Vakhrushev, S V Pavlovich, K N Yarygin, G T Sukhikh
We studied immunosuppressive properties of skin fibroblasts and mesenchymal stromal cells against NK cells. In vitro experiments showed that mesenchymal stromal cells isolated from human umbilical cord and human skin fibroblasts can considerably attenuate cytotoxic activity of NK cells against Jurkat cells sensitive to NK-mediated lysis. NK cells cultured in lymphocyte population exhibited higher cytotoxic activity than isolated NK cells. Mesenchymal stromal cells or fibroblasts added 1:1 to lymphocyte culture almost completely suppressed NK cell cytotoxicity...
February 27, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28239797/characteristics-of-multipotent-mesenchymal-stromal-cells-isolated-from-the-endometrium-and-endometriosis-lesions-of-women-with-malformations-of-the-internal-reproductive-organs
#9
A M Savilova, K N Farkhat, M N Yushina, Yu V Rudimova, Z N Makiyan, L V Adamyan
We isolated and characterized cell cultures from eutopic endometrium and endometriotic lesions of women with malformations of the internal reproductive organs. The cells had fibroblast-like shape and intensively expressed CD90, CD73, CD105, CD44, CD146, and CD117 and were capable of induced adipogenic and osteogenic differentiation in vitro. The obtained cultures exhibited properties of multipotent mesenchymal stromal cells; at the same time, they demonstrated in vitro immunophenotypic differences from cell cultures of eutopic and ectopic endometrium of women without developmental abnormalities, which suggests their functional difference...
February 27, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28239796/visualization-of-mesenchymal-stromal-cells-in-2dand-3d-cultures-by-scanning-electron-microscopy-with-lanthanide-contrasting
#10
I A Novikov, I V Vakhrushev, E N Antonov, K N Yarygin, A M Subbot
Mesenchymal stromal cells from deciduous teeth in 2D- and 3D-cultures on culture plastic, silicate glass, porous polystyrene, and experimental polylactoglycolide matrices were visualized by scanning electron microscopy with lanthanide contrasting. Supravital staining of cell cultures with a lanthanide-based dye (neodymium chloride) preserved normal cell morphology and allowed assessment of the matrix properties of the carriers. The developed approach can be used for the development of biomaterials for tissue engineering...
February 27, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28239788/expression-of-surface-molecules-in-human-mesenchymal-stromal-cells-co-cultured-with-nucleated-umbilical-cord-blood-cells
#11
Yu A Romanov, E E Balashova, N E Volgina, N V Kabaeva, T N Dugina, G T Sukhikh
We studied the expression of different classes of surface molecules (CD13, CD29, CD40, CD44, CD54, CD71, CD73, CD80, CD86, CD90, CD105, CD106, CD146, HLA-I, and HLA-DR) in mesenchymal stromal cells from human umbilical cord and bone marrow during co-culturing with nucleated umbilical cord blood cells. Expression of the majority of surface markers in both types of mesenchymal stromal cells was stable and did not depend on the presence of the blood cells. Significant differences were found only for cell adhesion molecules CD54 (ICAM-1) and CD106 (VCAM-1) responsible for direct cell-cell contacts with leukocytes and only for bone marrow derived cells...
February 27, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28239787/heterogeneity-of-retinal-pigment-epithelial-cells-from-adult-human-eye-in-different-culturing-systems
#12
A V Kuznetsova, M A Aleksandrova
We studied the behavior of retinal pigment epithelial cells from adult human eye derived from different donors in different culturing systems: on plastic, in collagen gel, and on decellularized neural retina substrate. The cells diverge into two subpopulations similar by their morphology and behavior: one subpopulation migrated to the surface of the dense substrate and the other formed spheroid structures consisting of aggregated cells. This fact confirms the data on genetically-predetermined phenotypic heterogeneity of retinal pigment epithelium cells that should be taken into account when using these cells in tissue engineering...
February 27, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28239783/effect-of-thp-1-cells-on-the-formation-of-vascular-tubes-by-endothelial-ea-hy926-cells-in-the-presence-of-placenta-secretory-products
#13
T Yu Lvova, K L Belyakova, S A Sel'kov, D I Sokolov
We studied the effect of THP-1 cells on the formation of vessel-like structures by endothelial cells in the presence of placenta-conditioned media. Addition of THP-1 cells to endothelial cells cultured in the presence of media conditioned by first-trimester placentas led to an increase in the length of cell tubes and reduced their number in comparison with endothelial cell monoculture. In the presence of media conditioned by third-trimester placentas, THP-1 cells did not affect the length and number of cell tubes formed by endothelial cells...
February 27, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28239758/acellular-mouse-kidney-ecm-can-be-used-as-a-three-dimensional-substrate-to-test-the-differentiation-potential-of-embryonic-stem-cell-derived-renal-progenitors
#14
Manpreet Sambi, Theresa Chow, Jennifer Whiteley, Mira Li, Shawn Chua, Vanessa Raileanu, Ian M Rogers
The development of strategies for tissue regeneration and bio-artificial organ development is based on our understanding of embryogenesis. Differentiation protocols attempt to recapitulate the signaling modalities of gastrulation and organogenesis, coupled with cell selection regimens to isolate the cells of choice. This strategy is impeded by the lack of optimal in vitro culture systems since traditional culture systems do not allow for the three-dimensional interaction between cells and the extracellular matrix...
February 27, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28239756/culturally-relevant-human-subjects-protection-training-a-case-study-in-community-engaged-research-in-the-united-states
#15
Jennifer Kue, Laura A Szalacha, Mary Beth Happ, Abigail L Crisp, Usha Menon
Non-academic members of research teams, such as community members, can perceive traditional human subjects protection training as lacking in cultural relevance. We present a case exemplar of the development of a human subjects protection training for research staff with limited English proficiency and/or no or limited research experience. Seven modules were adapted for language, cultural examples, etc., from the standard Collaborative Institutional Training Initiative (CITI) human subjects protection training...
February 27, 2017: Journal of Immigrant and Minority Health
https://www.readbyqxmd.com/read/28239692/high-throughput-screening-of-microchip-synthesized-genes-in-programmable-double-emulsion-droplets
#16
H F Chan, S Ma, J Tian, K W Leong
The rapid advances in synthetic biology and biotechnology are increasingly demanding high-throughput screening technology, such as screening of the functionalities of synthetic genes for optimization of protein expression. Compartmentalization of single cells in water-in-oil (W/O) emulsion droplets allows screening of a vast number of individualized assays, and recent advances in automated microfluidic devices further help realize the potential of droplet technology for high-throughput screening. However these single-emulsion droplets are incompatible with aqueous phase analysis and the inner droplet environment cannot easily communicate with the external phase...
February 27, 2017: Nanoscale
https://www.readbyqxmd.com/read/28239691/wood-combustion-particles-induce-adverse-effects-to-normal-and-diseased-airway-epithelia
#17
Manuel Krapf, Lisa Künzi, Sandrine Allenbach, Emily A Bruns, Ilaria Gavarini, Imad El-Haddad, Jay G Slowik, André S H Prévôt, Luka Drinovec, Griša Močnik, Lutz Dümbgen, Matthias Salathe, Nathalie Baumlin, Constantinos Sioutas, Urs Baltensperger, Josef Dommen, Marianne Geiser
Residential wood burning is a major source of poorly characterized, deleterious particulate matter, whose composition and toxicity may vary with wood type, burning condition and photochemical age. The causative link between ambient wood particle constituents and observed adverse health effects is currently lacking. Here we investigate the relationship between chemical properties of primary and atmospherically aged wood combustion particles and acute toxicity in human airway epithelial cells. Emissions from a log wood burner were diluted and injected into a smog chamber for photochemical aging...
February 27, 2017: Environmental Science. Processes & Impacts
https://www.readbyqxmd.com/read/28239606/influence-of-additive-manufactured-scaffold-architecture-on-the-distribution-of-surface-strains-and-fluid-flow-shear-stresses-and-expected-osteochondral-cell-differentiation
#18
Wim J Hendrikson, Anthony J Deegan, Ying Yang, Clemens A van Blitterswijk, Nico Verdonschot, Lorenzo Moroni, Jeroen Rouwkema
Scaffolds for regenerative medicine applications should instruct cells with the appropriate signals, including biophysical stimuli such as stress and strain, to form the desired tissue. Apart from that, scaffolds, especially for load-bearing applications, should be capable of providing mechanical stability. Since both scaffold strength and stress-strain distributions throughout the scaffold depend on the scaffold's internal architecture, it is important to understand how changes in architecture influence these parameters...
2017: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/28239581/role-of-histopathology-in-differentiating-primary-atrophic-rhinitis-from-atrophic-stage-of-rhinoscleroma
#19
Umesh S Nagalotimath, Krishnamurthy Naveen, Rekha B Puranik, Dandinarasaiah Manjunath, Mahesh Venkatesha
Atrophic rhinitis (AR) is a chronic debilitating nasal mucosal disease of unknown aetiology and the definitive treatment is still elusive. This often leads to the patient suffering during the entire life span often depleting the individual psychologically. On the contrary, Rhinoscleroma (RS) for which the aetiology is clearly known and is completely curable has atrophic stage which is clinically indistinguishable from AR. Many cases of atrophic stage of RS are undetected and often they end up being treated as AR...
March 2017: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/28239512/exploring-the-continuum-of-vaccine-hesitancy-between-african-american-and-white-adults-results-of-a-qualitative-study
#20
Sandra Quinn, Amelia Jamison, Donald Musa, Karen Hilyard, Vicki Freimuth
Vaccine delay and refusal present very real threats to public health. Since even a slight reduction in vaccination rates could produce major consequences as herd immunity is eroded, it is imperative to understand the factors that contribute to decision-making about vaccines. Recent scholarship on the concept of "vaccine hesitancy" emphasizes that vaccine behaviors and beliefs tend to fall along a continuum from refusal to acceptance. Most research on hesitancy has focused on parental decision-making about childhood vaccines, but could be extended to explore decision-making related to adult immunization against seasonal influenza...
December 29, 2016: PLoS Currents
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