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https://www.readbyqxmd.com/read/29151004/differentiation-of-wood-derived-vanillin-from-synthetic-vanillin-in-distillates-using-gc-c-irms-for-%C3%AE-13-c-analysis
#1
Katryna A van Leeuwen, Paul D Prenzler, Danielle Ryan, Mauro Paolini, Federica Camin
RATIONALE: Typical storage in oak barrels release in distillates different degradation products such as vanillin, which play an important role in their flavour and aroma. The addition of vanillin, as well as other aroma compounds, of different origin is prohibited by European laws. As vanillin samples from different sources have different δ(13) C values, the δ(13) C value could be used to determine whether the vanillin is authentic (lignin-derived), or if it has been added from another source (e...
November 18, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/29151003/lung-ultrasound-in-the-critically-ill-luci-a-translational-discipline
#2
Daniel A Lichtenstein, Manu L N G Malbrain
In the early days of ultrasound, it was not a translational discipline. The heart was claimed by cardiologists, with others, such as gynaecologists, urologists and vascular surgeons claiming their part while the rest was given to radiologists. Only recently, ultrasound transgressed and crossed the usual borders between the different disciplines, such as emergency and critical care medicine. The advent of portable machines in the early 1980s, allowed the critical care physician to perform bedside ultrasound, and the development of whole body critical care ultrasound (CCUS) was born...
November 18, 2017: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/29150983/ontogeny-of-the-post-cranial-axial-skeleton-of-melanosuchus-niger-crocodylia-alligatoridae
#3
Lucélia Gonçalves Vieira, Fabiano Campos Lima, Sônia Helena Santesso Teixeira de Mendonça, Lorena Tannús Menezes Dos Reis, Líria Queiroz Luz Hirano, André Luiz Quagliatto Santos
This study proposes the description of the development of the post-cranial axial skeleton, including vertebrae, gastralium, ribs, sternum and interclavicle, in Melanosuchus niger. Six nests were marked and two eggs removed from each nest at 24-hour intervals until hatching. For post-hatching evaluation, 30 hatchlings were kept in captivity and one exemplar was euthanized at three-day intervals. Samples were diaphanized using potassium hydroxide (KOH), alizarin red S and Alcian blue. A routinely generally used method was applied for histological evaluation...
November 18, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29150980/adjuvant-radiotherapy-in-sinonasal-mucosal-melanoma-a-retrospective-analysis
#4
Coosje J I Caspers, Emilie A C Dronkers, Dominiek Monserez, Marjan H Wieringa, Robert J Baatenburg de Jong, Jose A U Hardillo
OBJECTIVES: Evaluation of outcome after curative treatment for sinonasal mucosal melanoma, focused on the effect of adjuvant radiotherapy on recurrence and survival. DESIGN: Retrospective chart analysis. SETTING: Tertiary referral hospital. PARTICIPANTS: 51 patients with primary sinonasal mucosal melanoma who underwent surgical resection with curative intention between 1980 and 2016 at Erasmus Medical Center Rotterdam...
November 18, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/29150975/downregulation-of-dusp4-enhances-cell-proliferation-and-invasiveness-in-colorectal-carcinomas
#5
Michihiro Ichimanda, Naoki Hijiya, Yoshiyuki Tsukamoto, Tomohisa Uchida, Chisato Nakada, Tomonori Akagi, Tsuyoshi Etoh, Hidekatsu Iha, Masafumi Inomata, Mutsuhiro Takekawa, Masatsugu Moriyama
It is widely accepted that aberrant activation of the Wnt signaling pathway is responsible for the development of precursor lesions of colorectal cancer (CRC). However, the molecular mechanisms involved in the process of progression from these precursor lesions to invasive lesions of CRC are not fully understood. Recently, we reported that constitutive activation of MAPK accompanied by downregulation of dual-specificity phosphatase 4 (DUSP4), a MAPK phosphatase, contributes to the progression of precursor lesions in the pancreas...
November 18, 2017: Cancer Science
https://www.readbyqxmd.com/read/29150964/de-novo-donor-specific-hla-antibodies-after-combined-intestinal-and-vascularised-composite-allotransplantation
#6
Annemarie Weissenbacher, Georgios Vrakas, Mian Chen, Srikanth Reddy, Philip Allan, Henk Giele, Martin Cnm Barnardo, Anil Vaidya, Peter J Friend, Susan V Fuggle
Combining vascularised composite allotransplantation (VCA) with intestinal transplantation to achieve primary abdominal closure has become a feasible procedure. Besides facilitating closure, the abdominal wall can be used to monitor intestinal rejection. As the inclusion of a VCA raises the possibility of an enhanced alloimmune response, we investigated the incidence and clinical effect of de novo donor specific HLA antibodies (dnDSA) in a cohort of patients receiving an intestinal transplant with or without a VCA...
November 18, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/29150961/modulation-of-igg1-immunoeffector-function-by-glycoengineering-of-the-gdp-fucose-biosynthesis-pathway
#7
Ronan M Kelly, Ronald L Kowle, Zhirui Lian, Beth A Strifler, Derrick R Witcher, Bhavin S Parekh, Tongtong Wang, Christopher C Frye
Cross-linking of the Fcγ receptors expressed on the surface of hematopoietic cells by IgG immune complexes triggers the activation of key immune effector mechanisms, including antibody-dependent cell mediated cytotoxicity (ADCC). A conserved N-glycan positioned at the N-terminal region of the IgG CH 2 domain is critical in maintaining the quaternary structure of the molecule for Fcγ receptor engagement. The removal of a single core fucose residue from the N-glycan results in a considerable increase in affinity for FcγRIIIa leading to an enhanced receptor-mediated immunoeffector function...
November 18, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/29150958/inhibition-of-mir-200b-mir-429-contributes-to-neuropathic-pain-development-through-targeting-zinc-finger-e-box-binding-protein-1
#8
Xue-Tao Yan, Ying Zhao, Xiao-Li Cheng, Xiang-Hu He, Yu Wang, Wen-Zhong Zheng, Hu Chen, Yan-Lin Wang
Many studies have reported that microRNAs participate in neuropathic pain development. Previously, miR-200b and miR-429 are reported to be involved in various diseases. In our current study, we focused on their roles in neuropathic pain and we found that miR-200b and miR-429 were significantly decreased in chronic constriction injury (CCI) rat spinal cords and isolated microglials. miR-200b and miR-429 overexpression were able to relieve neuropathic pain through modulating PWT and PWL in CCI rats. Meanwhile, we observed that both miR-200b and miR-429 upregulation could repress neuroinflammation via inhibiting inflammatory cytokines such as IL-6, IL-1β and TNF-α in CCI rats...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150954/physiological-role-of-urothelial-cancer-associated-1-long-noncoding-rna-in-human-skeletogenic-cell-differentiation
#9
Takanori Ishikawa, Takashi Nishida, Mitsuaki Ono, Takeshi Takarada, Nguyen Ha, Shinnosuke Kurihara, Takayuki Furumatsu, Yurika Murase, Masaharu Takigawa, Toshitaka Oohashi, Hiroshi Kamioka, Satoshi Kubota
A vast number of long-noncoding RNAs (lncRNA) are found expressed in human cells, which RNAs have been developed along with human evolution. However, the physiological functions of these lncRNAs remain mostly unknown. In the present study, we for the first time uncovered the fact that one of such lncRNAs plays a significant role in the differentiation of chondrocytes and, possibly, of osteoblasts differentiated from mesenchymal stem cells, which cells eventually construct the human skeleton. The urothelial cancer-associated 1 (UCA1) lncRNA is known to be associated with several human malignancies...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150953/new-algorithm-for-simulation-of-proteoglycan-loss-and-collagen-degeneration-in-the-knee-joint-data-from-the-osteoarthritis-initiative
#10
Mika E Mononen, Petri Tanska, Hanna Isaksson, Rami K Korhonen
Osteoarthritis is a harmful joint disease but prediction of disease progression is problematic. Currently, there is only one modeling framework which can be applied to predict the progression of knee osteoarthritis but it only considers degenerative changes in the collagen fibril network. Here, we have developed the framework further by considering all of the major tissue changes (proteoglycan content, fluid flow and collagen fibril network) occurring in osteoarthritis. While excessive levels of tissue stresses controlled degeneration of the collagen fibril network, excessive levels of tissue strains controlled the decrease in proteoglycan content and the increase in permeability...
November 18, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29150952/ck-2127107-amplifies-skeletal-muscle-response-to-nerve-activation-in-humans
#11
Jinsy A Andrews, Timothy M Miller, Vipin Vijayakumar, Randall Stoltz, Joyce K James, Lisa Meng, Andrew A Wolff, Fady I Malik
INTRODUCTION: Three studies evaluated safety, tolerability, pharmacokinetics, and pharmacodynamics of CK-2127107 (CK-107), a next-generation fast skeletal muscle troponin activator (FSTA), in healthy subjects. We tested the hypothesis that CK-107 would amplify the force-frequency response of muscle in humans. METHODS: To assess the force-frequency response, subjects received single doses of CK-107 and placebo in a randomized, double-blind, 4-period, crossover study...
November 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/29150946/lncrna-tcons_00034812-in-cell-proliferation-and-apoptosis-of-pulmonary-artery-smooth-muscle-cells-and-its-mechanism
#12
Yun Liu, Zengxian Sun, Jinquan Zhu, Bingxin Xiao, Jie Dong, Xiaomin Li
Long noncoding RNAs (lncRNAs) have been discovered to be playing important role in various biological processes. However, the contribution of lncRNAs to pulmonary artery hypertension (PAH) remains largely unknown. Pulmonary vascular remodeling is an important pathological feature of PAH, leading to increased vascular resistance and reduced compliance. Here, we investigated the biological role of lncRNAs in PAH. Differences in the lncRNAs and mRNAs between hypoxia PAH rats and normoxia rats were screened using microarray analysis...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150945/development-of-an-in-vivo-mouse-model-of-discogenic-low-back-pain
#13
Changgui Shi, Vaskar Das, Xin Li, Ranjan Kc, Sujun Qiu, InSug O-Sullivan, Richard L Ripper, Jeffrey S Kroin, Fackson Mwale, Atiyayein A Wallace, Bingqian Zhu, Lan Zhao, Andre J van Wijnen, Mingliang Ji, Jun Lu, Gina Votta-Velis, Wen Yuan, Hee-Jeong Im
Discogenic Low back pain (DLBP) is extremely common and costly. Effective treatments are lacking due to DLBP's unknown pathogenesis. Currently, there are no in vivo mouse models of DLBP, which restricts research in this field. The aim of this study was to establish a reliable DLBP model in mouse that captures the pathological changes in the disc and allows longitudinal pain testing. The model was generated by puncturing the mouse lumbar discs (L4/5, L5/6, and L6/S1) and removing the nucleus pulposus using a microscalpel under the microscope...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150944/toll-like-receptor-signaling-pathway-as-a-potential-therapeutic-target-in-colorectal-cancer
#14
REVIEW
Reyhaneh Moradi-Marjaneh, Seyed Mahdi Hassanian, Hamid Fiuji, Saman Soleimanpour, Gordon A Ferns, Amir Avan, Majid Khazaei
Toll like receptor (TLR) signaling is involved in activating innate and adaptive immune responses and plays a critical role in inflammation-induced diseases such as colorectal cancer (CRC). Dysregulation of this signaling pathway can result in disturbance of epithelial layer hemostasis, chronic inflammatory, excessive repair responses and development of CRC. There is now substantial evidence for the benefit of targeting of this pathway in cancer treatment, and several agents have been approved, such as BCG (Bacillus Calmette Guérin), MPL (monophosphoryl lipid A) and imiquimod...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150938/regulation-of-calcification-in-human-aortic-smooth-muscle-cells-infected-with-high-glucose-treated-porphyromonas-gingivalis
#15
Te-Chuan Chen, Chien-Tsong Lin, Shao-Ju Chien, Shun-Fu Chang, Cheng-Nan Chen
Porphyromonas (P.) gingivalis infection leading to the periodontitis has been associated with the development of systemic diseases, including cardiovascular diseases and diabetes. However, the effect of a high concentration of glucose (HG) on the invasion efficiency of P. gingivalis and the consequent modulation of pathogenesis in vascular cells, especially in the vascular smooth muscle cells (VSMCs), remains unclear. Hence, the aim of this study was to investigate whether treating P. gingivalis with HG could change its invasion capability and result in VSMC calcification and the underlying mechanism...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150937/cgmp-production-and-analysis-of-bg505-sosip-664-an-extensively-glycosylated-trimeric-hiv-1-envelope-glycoprotein-vaccine-candidate
#16
Antu K Dey, Albert Cupo, Gabriel Ozorowski, Vaneet K Sharma, Anna-Janina Behrens, Eden P Go, Thomas J Ketas, Anila Yasmeen, Per J Klasse, Eddy Sayeed, Heather Desaire, Max Crispin, Ian A Wilson, Rogier W Sanders, Thomas Hassell, Andrew Ward, John P Moore
We describe the properties of BG505 SOSIP.664 HIV-1 envelope glycoprotein trimers produced under current Good Manufacturing Practice (cGMP) conditions. These proteins are the first of a new generation of native-like trimers that are the basis for many structure-guided immunogen development programs aimed at devising how to induce broadly neutralizing antibodies (bNAbs) to HIV-1 by vaccination. The successful translation of this prototype demonstrates the feasibility of producing similar immunogens on an appropriate scale and of an acceptable quality for Phase I experimental medicine clinical trials...
November 18, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/29150936/the-roles-of-wnt-%C3%AE-catenin-pathway-in-tissue-development-and-regenerative-medicine
#17
REVIEW
Maryam Majidinia, Javad Aghazadeh, Rana Jahanban-Esfahlani, Bahman Yousefi
Regenerative medicine is a translational field which combines tissue engineering and molecular biology to construct spare organs or help injured or defective tissues to regenerate or restore their normal functions. This is particularly important with specific organs such as heart, central nervous system, retina or limbs which possess very limited regenerative capacity. As such, regenerative medicine has received peculiar attention in the last decade. In this regard, Wnt/β-catenin signaling pathway has been subject to intensive research, since it plays many essential roles in the regulation of the progenitor cell fate, developmental decisions, proliferation during embryonic development, and adult tissue homeostasis...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150933/design-of-a-novel-continuous-flow-reactor-for-low-ph-viral-inactivation
#18
Stephanie A Parker, Linus Amarikwa, Kevin Vehar, Raquel Orozco, Scott Godfrey, Jon Coffman, Parviz Shamlou, Cameron L Bardliving
Insufficient mixing in laminar flow reactors due to diffusion-dominated flow limits their use in applications where narrow residence time distribution (RTD) is required. The aim of this study was to design and characterize a laminar flow (Re 187.7-375.5) tubular reactor for low pH viral inactivation with enhanced radial mixing via the incorporation of curvature and flow inversions. Towards this aim, the reactor described here, Jig in a Box (JIB), was designed with a flow path consisting of alternating 270° degree turns...
November 18, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/29150927/identification-of-proteins-drying-oils-waxes-and-resins-in-the-works-of-art-micro-samples-by-chromatographic-and-mass-spectrometric-techniques
#19
Bartłomiej Witkowski, Anna Duchnowicz, Monika Ganeczko, Agnieszka Laudy, Tomasz Gierczak, Magdalena Biesaga
Simplified method for simultaneous identification of proteins, drying oils, waxes and resins in the works-of-art samples was developed. Liquid chromatography with mass spectrometry and gas chromatography with mass spectrometry were used to identify natural materials most frequently encountered in historical paintings. Protein binders were extracted with ammonia and purified using miniaturized solid-phase microextraction (Omix tips) to efficiently suppress matrix interferences. Zwitterionic stationary phase was used for separation of sixteen underivatized amino acids analysis with hydrophilic interaction liquid chromatography that were subsequently quantified with liquid chromatography with mass spectrometry...
November 18, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/29150926/viral-short-orfs-and-their-possible-functions
#20
REVIEW
Yaara Finkel, Noam Stern-Ginossar, Michal Schwartz
Definition of functional genomic elements is one of the greater challenges of the genomic era. Traditionally, putative short Open Reading Frames (sORFs) coding for less than 100 amino acids were disregarded due to computational and experimental limitations, however it has become clear over the past several years that translation of sORFs is pervasive and serves diverse functions. The development of ribosome profiling, allowing identification of translated sequences genome-wide, revealed wide-spread, previously unidentified translation events...
November 18, 2017: Proteomics
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