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https://www.readbyqxmd.com/read/29156598/novel-montmorillonite-tio%C3%A2-mnal-mixed-oxide-composites-prepared-from-inverse-microemulsions-as-combustion-catalysts
#1
Bogna D Napruszewska, Alicja Michalik-Zym, Melania Rogowska, Elżbieta Bielańska, Wojciech Rojek, Adam Gaweł, Monika Wójcik-Bania, Krzysztof Bahranowski, Ewa M Serwicka
A novel design of combustion catalysts is proposed, in which clay/TiO₂/MnAl-mixed oxide composites are formed by intermixing exfoliated organo-montmorillonite with oxide precursors (hydrotalcite-like in the case of Mn-Al oxide) obtained by an inverse microemulsion method. In order to assess the catalysts' thermal stability, two calcination temperatures were employed: 450 and 600 °C. The composites were characterized with XRF (X-ray fluorescence), XRD (X-ray diffraction), HR SEM (high resolution scanning electron microscopy, N₂ adsorption/desorption at -196 °C, and H₂ TPR (temperature programmed reduction)...
November 19, 2017: Materials
https://www.readbyqxmd.com/read/29156584/identification-of-physiological-substrates-and-binding-partners-of-the-plant-mitochondrial-protease-ftsh4-by-the-trapping-approach
#2
Magdalena Opalińska, Katarzyna Parys, Hanna Jańska
Maintenance of functional mitochondria is vital for optimal cell performance and survival. This is accomplished by distinct mechanisms, of which preservation of mitochondrial protein homeostasis fulfills a pivotal role. In plants, inner membrane-embedded i-AAA protease, FTSH4, contributes to the mitochondrial proteome surveillance. Owing to the limited knowledge of FTSH4's in vivo substrates, very little is known about the pathways and mechanisms directly controlled by this protease. Here, we applied substrate trapping coupled with mass spectrometry-based peptide identification in order to extend the list of FTSH4's physiological substrates and interaction partners...
November 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29156539/epidemiological-investigations-of-four-cowpox-virus-outbreaks-in-alpaca-herds-germany
#3
Almut Prkno, Donata Hoffmann, Daniela Goerigk, Matthias Kaiser, Anne Catherine Franscisca van Maanen, Kathrin Jeske, Maria Jenckel, Florian Pfaff, Thomas W Vahlenkamp, Martin Beer, Rainer G Ulrich, Alexander Starke, Martin Pfeffer
Four cowpox virus (CPXV) outbreaks occurred in unrelated alpaca herds in Eastern Germany during 2012-2017. All incidents were initially noticed due to severe, generalized, and finally lethal CPXV infections, which were confirmed by testing of tissue and serum samples. As CPXV-infection has been described in South American camelids (SACs) only three times, all four herds were investigated to gain a deeper understanding of CPXV epidemiology in alpacas. The different herds were investigated twice, and various samples (serum, swab samples, and crusts of suspicious pox lesions, feces) were taken to identify additionally infected animals...
November 18, 2017: Viruses
https://www.readbyqxmd.com/read/29156538/combined-effects-of-simulated-microgravity-and-radiation-exposure-on-osteoclast-cell-fusion
#4
Srinivasan Shanmugarajan, Ye Zhang, Maria Moreno-Villanueva, Ryan Clanton, Larry H Rohde, Govindarajan T Ramesh, Jean D Sibonga, Honglu Wu
The loss of bone mass and alteration in bone physiology during space flight are one of the major health risks for astronauts. Although the lack of weight bearing in microgravity is considered a risk factor for bone loss and possible osteoporosis, organisms living in space are also exposed to cosmic radiation and other environmental stress factors. As such, it is still unclear as to whether and by how much radiation exposure contributes to bone loss during space travel, and whether the effects of microgravity and radiation exposure are additive or synergistic...
November 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29156107/hemodynamic-force-triggers-rapid-netosis-within-sterile-thrombotic-occlusions
#5
X Yu, J Tan, S L Diamond
BACKGROUND: Neutrophil extracellular traps (NETs) are released when neutrophils encounter infectious pathogens, especially during sepsis. Additionally, NETosis occurs during venous and arterial thrombosis, disseminated intravascular coagulation, and trauma. OBJECTIVE: We tested if hemodynamic forces trigger NETosis during sterile thrombosis. METHODS: NETs were imaged with Sytox-green during microfluidic perfusion of Factor XIIa-inhibited or thrombin-inhibited human whole blood over fibrillar collagen (± tissue factor)...
November 20, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/29156055/analysis-of-an-adtkd-family-with-a-novel-frameshift-mutation-in-muc1-reveals-characteristic-features-of-mutant-muc1-protein
#6
Satoko Yamamoto, Jun-Ya Kaimori, Takuji Yoshimura, Tomoko Namba, Atsuko Imai, Kaori Kobayashi, Ryoichi Imamura, Naotsugu Ichimaru, Kazuto Kato, Akihiro Nakaya, Shiro Takahara, Yoshitaka Isaka
Background: Medullary cystic kidney disease Type 1 is an autosomal dominant tubulointerstitial kidney disease (ADTKD). Recently, mucin 1 ( MUC1 ) was identified as a causal gene of medullary cystic kidney disease (ADTKD-MUC1). However, the MUC1 mutation was found to be a single cytosine insertion in a single copy of the GC-rich variable number of tandem repeats (VNTRs), which are very difficult to analyze by next-generation sequencing. To date, other mutations have not been detected in ADTKD-MUC1, and the mutant MUC1 protein has not been analyzed because of the difficulty of genetically modifying the VNTR sequence...
June 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29155852/the-role-of-adenosine-diphosphate-mediated-platelet-responsiveness-for-the-stability-of-platelet-integrity-in-citrated-whole-blood-under-ex-vivo-conditions
#7
Juergen Koessler, Michaela Schwarz, Katja Weber, Julia Etzel, Angela Koessler, Markus Boeck, Anna Kobsar
BACKGROUND: Platelets are important for effective hemostasis and considered to be involved in pathophysiological processes, e.g. in cardiovascular diseases. Platelets provided for research or for therapeutic use are frequently separated from citrated whole blood (WB) stored for different periods of time. Although functionally intact platelets are required, the stability of platelet integrity, e.g. adenosine diphosphate (ADP) mediated responsiveness, has never been thoroughly investigated in citrated WB under ex vivo conditions...
2017: PloS One
https://www.readbyqxmd.com/read/29155721/visualizing-macrophage-extracellular-traps-using-confocal-microscopy
#8
Roleen Sharma, Kim M O'Sullivan, Stephen R Holdsworth, Philip G Bardin, Paul T King
A primary method used to define the presence of neutrophil extracellular traps (NETs) is confocal microscopy. We have modified established confocal microscopy methods to visualize macrophage extracellular traps (METs). These extracellular traps are defined by the presence of extracellular chromatin with co-expression of other components such as granule proteases, citrullinated histones, and peptidyl arginase deiminase (PAD). The expression of METs is generally measured after exposure to a stimulus and compared to un-stimulated samples...
October 19, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29155549/icephobic-behavior-of-uv-cured-polymer-networks-incorporated-into-slippery-lubricant-infused-porous-surfaces-improving-slips-durability
#9
Matthew J Coady, Michael Wood, Gregory Q Wallace, Kent E Nielsen, Anne-Marie Kietzig, François Lagugné-Labarthet, Paul J Ragogna
Ice accretion causes damage on power generation infrastructure, leading to mechanical failure. Icephobic materials are being researched so that ice buildup on these surfaces will be shed before the weight of the ice causes catastrophic damage. Recently, lubricated materials showed the lowest recorded forces of ice adhesion, and therefore lubricated materials are considered the state-of-the-art. Slippery lubricant-infused porous surfaces (SLIPS) are one type of such materials. SLIPS are initially very effective at repelling ice, but the trapped fluid layer that affords their icephobic properties is depleted by repeated ice removal...
November 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29155465/catalytic-dibenzocyclooctene-synthesis-via-cobalt-iii-carbene-radical-and-ortho-quinodimethane-intermediates
#10
Colet Te Grotenhuis, Naudin van den Heuvel, Jarl Ivar van der Vlugt, Bas de Bruin
Metalloradical activation of N-tosyl hydrazones 1 (o-benzallyl-aryl-tosylhydrazones), using [Co(TPP)] as a catalyst (TPP = tetraphenylporphyrin), allows controlled exploitation of single-electron reactivity of the redox non-innocent carbene intermediate. This method offers a novel route to prepare 8-membered rings, using base metal catalysis to construct a series of unique dibenzocyclooctenes via selective CcarbeneCaryl cyclization, producing the desired 8 membered ring products in good to excellent yields...
November 20, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/29155252/3d-visualization-and-pathological-characteristics-of-cartilage-and-subchondral-bone-changes-in-the-lumbar-facet-joint-of-an-ovariectomized-mouse-model
#11
Chunyue Duan, Shuangfei Ni, Yong Cao, Shenghui Liao, Jianzhong Hu, Tianding Wu
BACKGROUD CONTEXT: Low back pain (LBP) is more prevalent among postmenopausal women than men. Ovariectomy (OVX) is an established animal model that mimics the estrogen deficiency of postmenopausal women. Little is known about the 3D morphological properties of cartilage and subchondral bone changes in the lumbar facet joint (LFJ) of an OVX mouse model. PURPOSE: The purpose of this study is to characterize the 3D morphological change of cartilage and subchondral bone in LFJ of an OVX mouse model...
November 15, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29155217/neutrophil-elastase-in-the-tumor-microenvironment
#12
Irina Lerman, Stephen R Hammes
Myeloid cell production within the bone marrow is accelerated in the setting of cancer, and the numbers of circulating and infiltrating neutrophils and granulocytic myeloid derived suppressor cells (MDSCs) correlate with tumor progression and patient survival. Cancer is therefore able to hijack the normally host-protective immune system and use it to further fuel growth and metastasis. Myeloid cells secrete neutrophil elastase and neutrophil extracellular traps (NETs) in response to cues within the tumor microenvironment, thereby leading to enhanced activity in a variety of cancer types...
November 16, 2017: Steroids
https://www.readbyqxmd.com/read/29155101/type-i-ifn-related-netosis-in-ataxia-telangiectasia-and-artemis-deficiency
#13
Ersin Gul, Esra Hazar Sayar, Bilgi Gungor, Fehime Kara Eroglu, Naz Surucu, Sevgi Keles, Sukru Nail Guner, Sıddıka Fındık, Esin Alpdündar, Ihsan Cihan Ayanoglu, Basak Kayaoglu, Busra Nur Geçkin, Hatice Asena Sanli, Tamer Kahraman, Cengiz Yakicier, Meltem Muftuoglu, Berna Oguz, Deniz Nazire Cagdas Ayvaz, Ihsan Gursel, Seza Ozen, Ismail Reisli, Mayda Gursel
BACKGROUND: Pathological inflammatory syndromes of unknown etiology are commonly observed in Ataxia telangiectasia (AT) and Artemis deficiency. Similar inflammatory manifestations also exist in STING-associated vasculopathy in infancy (SAVI) patients. OBJECTIVE: To test the hypothesis that the inflammation associated manifestations observed in AT and Artemis deficient patients stem from increased type I IFN signature leading to neutrophil mediated pathological damage...
November 15, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29154928/sequence-analysis-of-the-thrombospondin-related-adhesive-protein-gene-and-heat-shock-protein-70-of-babesia-gibsoni-isolated-from-dogs-in-nanjing-china
#14
Huan-Ran Lin, Xiao-Ting Mei, Yu-Fang Hong, Yan-Bing Zhao, Xiao-Nan Guo, De-Ji Yang, Da-Wei Yao
In this study, the thrombospondin-related adhesive protein (TRAP) gene and the heat shock protein 70 (Hsp70) gene of Babesia gibsoni isolated from the naturally infected dog in the Nanjing area were cloned and sequenced. Twenty blood samples were collected from the suspected cases of babesiosis at the animal hospital of Nanjing Agriculture University. Genomic DNA was extracted from the blood samples, and the 18S rDNAs were amplified by PCR to confirm Babesia infection. As a result, 10 cases of Babesia 18S rDNA gene amplification were positive in the 20 blood samples, confirming that the 10 cases were infected with canine Babesia...
November 14, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29153973/airborn-gamma-ray-spectrometric-data-as-guide-for-probable-hydrocarbon-accumulations-at-al-laqitah-area-central-eastern-desert-of-egypt
#15
Ahmed A Nigm, Mohamed A S Youssef, Fatema M Abdelwahab
An exploration method has been developed to understand the relation between the radiometric measurements and the subsurface petroleum accumulations, where subtle anomalous patterns of radiation flux are detected over subsurface hydrocarbon basins. This technique is mainly based on utilizing the aerial gamma-ray spectral data in the prospecting for petroleum in stratigraphic and structural traps. Al-Laqitah area, Central Eastern Desert, Egypt, was selected to apply this method on its recorded aerial gamma-ray spectrometric survey data...
November 1, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/29153382/a-pilot-study-alternative-biomaterials-in-critical-sized-bone-defect-treatment
#16
Magdalena Tarchala, Victor Engel, Jake Barralet, Edward J Harvey
BACKGROUND: Critical-sized bone defects are a significant challenge with limited effective reconstructive options. The Masquelet Technique (MT) offers a solution to help restore form and function. Although this technique has produced promising results; a clear mechanism has not been determined. Theories include that the induced membrane has osteogenic potential or the membrane acts as a physical barrier to prevent fibrous tissue ingrowth. We hypothesize the induced membrane acts primarily as a physical barrier and that a synthetic non-biological membrane will allow a comparable amount of bone volume in the defect site...
November 9, 2017: Injury
https://www.readbyqxmd.com/read/29153273/women-s-experiences-of-having-depression-during-pregnancy-and-receiving-acupuncture-treatment-a-qualitative-study
#17
Simone M Ormsby, Hannah G Dahlen, Caroline A Smith
BACKGROUND: Research indicates some women experiencing depression during pregnancy are dissatisfied with conventional depression treatments due to incomplete effectiveness, dislike of side effects, unsatisfactory experiences with providers and concerns regarding in-utero and breastfeeding safety. Consequently, many explore alternative options including acupuncture. To further understand women's views, preferences and motivations in this regard, as well as their experiences of receiving acupuncture as part of a three-armed pragmatic randomised controlled trial evaluating acupuncture for antenatal depression in Sydney, Australia, in-depth interviews were conducted with a group of acupuncture recipients...
November 15, 2017: Women and Birth: Journal of the Australian College of Midwives
https://www.readbyqxmd.com/read/29152795/influence-of-radiation-on-the-properties-and-the-stability-of-hybrid-perovskites
#18
REVIEW
Felix Lang, Oleksandra Shargaieva, Viktor V Brus, Heinz C Neitzert, Jörg Rappich, Norbert H Nickel
Organic-inorganic perovskites are well suited for optoelectronic applications. In particular, perovskite single and perovskite tandem solar cells with silicon are close to their market entry. Despite their swift rise in efficiency to more than 21%, solar cell lifetimes are way below the needed 25 years. In fact, comparison of the time when the device performance has degraded to 80% of its initial value (T80 lifetime) of numerous solar cells throughout the literature reveals a strongly reduced stability under illumination...
November 20, 2017: Advanced Materials
https://www.readbyqxmd.com/read/29152628/highly-efficient-gas-phase-reactivity-of-protonated-pyridine-radicals-with-propene
#19
Cameron C Bright, Matthew B Prendergast, Patrick D Kelly, James P Bezzina, Stephen J Blanksby, Gabriel da Silva, Adam J Trevitt
Small nitrogen containing heteroaromatics are fundamental building blocks for many biological molecules, including the DNA nucleotides. Pyridine, as a prototypical N-heteroaromatic, has been implicated in the chemical evolution of many extraterrestrial environments, including the atmosphere of Titan. This paper reports on the gas-phase ion-molecule reactions of the three dehydro-N-pyridinium radical cation isomers with propene. Photodissociation ion-trap mass spectrometry experiments are used to measure product branching ratios and reaction kinetics...
November 20, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29152286/bony-spicules-trapped-in-peri-implant-soft-tissue-a-common-unrecognized-finding
#20
Teeratida Sampatanukul, Pravej Serichetaphongse, Pichet Sampatanukul, Atiphan Pimkhaokham
According to the study, there were unexpected tiny bone spicules being inspected in peri-implant soft tissue. These displaced autogenous bone chips were probably presented when preparing implant sites. The displaced bone spicules seemed not induced significant inflammatory reactions; on contrary, defects of specimens and dissolving bone spicules pictures were demonstrated.
November 2017: Clinical Case Reports
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