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https://www.readbyqxmd.com/read/28441238/diaphragm-activation-in-ventilated-patients-using-a-novel-transvenous-phrenic-nerve-pacing-catheter
#1
Steven Reynolds, Adrian Ebner, Tracy Meffen, Viral Thakkar, Matt Gani, Kaity Taylor, Linda Clark, Gautam Sadarangani, Ramasamy Meyyappan, Rodrigo Sandoval, Elizabeth Rohrs, Joaquín A Hoffer
OBJECTIVES: Over 30% of critically ill patients on positive-pressure mechanical ventilation have difficulty weaning from the ventilator, many of whom acquire ventilator-induced diaphragm dysfunction. Temporary transvenous phrenic nerve pacing using a novel electrode-bearing catheter may provide a means to prevent diaphragm atrophy, to strengthen an atrophied diaphragm, and mitigate the harms of mechanical ventilation. We tested the initial safety, feasibility, and impact on ventilation of this novel approach...
April 22, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28440963/clinical-sequencing-using-a-next-generation-sequencing-based-multiplex-gene-assay-in-patients-with-advanced-solid-tumors
#2
Tadayuki Kou, Masashi Kanai, Yoshihiro Yamamoto, Mayumi Kamada, Masahiko Nakatsui, Tomohiro Sakuma, Hiroaki Mochizuki, Akinori Hiroshima, Aiko Sugiyama, Eijiro Nakamura, Hidehiko Miyake, Sachiko Minamiguchi, Kyoichi Takaori, Shigemi Matsumoto, Hironori Haga, Hiroshi Seno, Shinji Kosugi, Yasushi Okuno, Manabu Muto
Advances in next-generation sequencing (NGS) technologies have enabled physicians to test for genomic alterations in multiple cancer-related genes at once in daily clinical practice. In April 2015, we introduced clinical sequencing using an NGS-based multiplex gene assay (OncoPrime(™) ) certified by the Clinical Laboratory Improvement Amendment. This assay covers the entire coding regions of 215 genes and the rearrangement of 17 frequently rearranged genes with clinical relevance in human cancers. The principal indications for the assay were cancers of unknown primary site, rare tumors, and any solid tumors that were refractory to standard chemotherapy...
April 25, 2017: Cancer Science
https://www.readbyqxmd.com/read/28440951/concluding-the-trilogy-the-interaction-of-2-2-dihydroxy-benzophenones-and-their-carbonyl-n-analogues-with-human-glutathione-transferase-m1-1-face-to-face-with-the-p1-1-and-a1-1-isoenzymes-involved-in-mdr
#3
Nikolaos D Georgakis, Dionisis A Karagiannopoulos, Trias N Thireou, Elias E Eliopoulos, Nikolaos E Labrou, Petros G Tsoungas, Michael N Koutsilieris, Yannis D Clonis
The conjugation of intracellular glutathione (GSH) with several electrophilic, predominantly hydrophobic, endogenous and xenobiotic compounds, such as chemotherapeutics and carcinogenics, agrochemicals and other drugs, is catalyzed by the multigene enzyme family of glutathione transferases (GSTs). The mammalian family of GSTs comprises three groups: cytosolic, mitochondrial and microsomal. Human cytosolic GSTs constitute the largest family, which is classified in seven distinct classes named Alpha (Α), Mu (M), Pi (P), Theta (T), Sigma (S), Zeta (Z) and Omega (O)...
April 25, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28440948/novel-reduction-sensitive-micellar-nanoparticles-assembled-from-rituximab-doxorubicin-conjugates-as-smart-and-intuitive-drug-delivery-systems-for-the-treatment-of-non-hodgkin-s-lymphoma
#4
Huabin Yin, Tong Meng, Ling Shu, Min Mao, Lei Zhou, Haiyan Chen, Dianwen Song
In this study, a novel reduction-sensitive drug delivery system, the Rituximab-Doxorubicin (RTX-DOX) micellar nanoparticle (RDMN), was specially designed for targeted delivery and release of DOX in Non-Hodgkin's Lymphoma (NHL) cells. The RDMN was fabricated by self-assembling of amphiphilic RTX-DOX conjugates (RDCs), which were synthesized by conjugating the hydrophilic Fab fragments of RTX (an anti-CD20 monoclonal antibody) and hydrophobic DOXs by a reduction-responsive linker, 3-(2-Pyridyldithio) propionyl hydrazide (PDPH)...
April 25, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28440909/roles-of-the-pdz-binding-motif-of-hpv-16-e6-protein-in-oncogenic-transformation-of-human-cervical-keratinocytes
#5
Yuki Yoshimatsu, Tomomi Nakahara, Katsuyuki Tanaka, Yuki Inagawa, Mako Narisawa-Saito, Takashi Yugawa, Shin-Ichi Ohno, Masatoshi Fujita, Hitoshi Nakagama, Tohru Kiyono
The high-risk human papillomavirus E6 proteins have been shown to interact with and lead degradation of PDZ-domain-containing proteins through its carboxy-terminal motif. This PDZ-binding motif plays important roles in transformation of cultured cells and carcinogenesis of E6-transgenic mice. However, its biological effects on the natural host cells have not been elucidated. We have examined its roles in an in vitro carcinogenesis model for cervical cancer, in which E6 and E7 together with activated HRAS (HRAS(G)(12V) ) can induce tumorigenic transformation of normal human cervical keratinocytes...
April 25, 2017: Cancer Science
https://www.readbyqxmd.com/read/28440904/the-european-court-of-human-rights-on-planned-home-birth-resolution-of-a-paradoxical-ruling
#6
Frank A Chervenak, Amos Grünebaum, Birgit Arabin, Laurence B McCullough
On November 15, 2016, the European Court of Human Rights issued its judgment in the case of Krejzová v. the Czech Republic, which concerned the policy of the Czech State not to provide skilled attendance by midwives at planned home births. The issue was whether this policy violated Article 8 of the European Convention on Human Rights: "Everyone has the right to respect for his private and family life, his home and his correspondence."(1) The Czech health policy before the Court did not prohibit unattended planned home birth but it created technical requirements for attendance at planned home birth that had the effect of prohibiting attendance by midwives...
April 25, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28440741/standardized-rat-model-testing-effects-of-inflammation-and-grafting-on-extraction-healing
#7
Emily S Willett, Jingpeng Liu, Molly Berke, Peter J Giannini, Marian Schmid, Zhenshan Jia, Xiaobei Wang, Xiaoyan Wang, Kaeli Samson, Fang Yu, Dong Wang, Ali Nawshad, Richard A Reinhardt
BACKGROUND: Loss of the alveolar ridge width and height following tooth extraction is well-documented, but models to evaluate ridge preservation are neither standardized nor cost-effective. This rat model characterizes the pattern of bone turnover and inflammation after extraction and bone grafting with or without local simvastatin (SIM). METHODS: Fifty retired-breeder rats underwent extraction of the right maxillary first molar and standard surgical defect creation under inhalation/local anesthesia...
April 25, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28440548/contact-sensitizers-trigger-human-cd1-autoreactive-t-cell-responses
#8
Richard J Betts, Adrijana Perkovic, Subhashree Mahapatra, Aurélia Del Bufalo, Kaddy Camara, Amy R Howell, Silvia Martinozzi Teissier, Gennaro De Libero, Lucia Mori
Allergic contact dermatitis is a primarily T-cell-mediated inflammatory skin disease induced by exposure to small molecular-weight haptens, which covalently bind to proteins. The abundance of cutaneous T cells that recognize CD1a antigen-presenting molecules raises the possibility that MHC-independent antigen presentation may be relevant in some hapten-driven immune responses. Here we examine the ability of contact sensitizers to influence CD1-restricted immunity. Exposure of human antigen-presenting cells such as monocyte-derived dendritic cells and THP-1 cells to the prototypical contact sensitizer dinitrochlorobenzene potentiated the response of CD1a- and CD1d-autoreactive T cells, which released a vast array of cytokines in a CD1- and TCR-dependent manner...
April 25, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28440547/development-of-lc-qtof-ms-method-for-human-lung-tissue-fingerprinting-a-preliminary-application-to-non-small-cell-lung-cancer
#9
Michal Ciborowski, Joanna Kisluk, Karolina Pietrowska, Paulina Samczuk, Ewa Parfieniuk, Tomasz Kowalczyk, Miroslaw Kozlowski, Adam Kretowski, Jacek Niklinski
The major histologic subtypes of non-small cell lung cancer (NSCLC) include adenocarcinoma (ADC), squamous cell lung carcinoma (SCC), and large-cell carcinoma (LCC). Clinical trials of targeted agents and newer chemotherapy agents yielded differences in outcomes according to histologic subgroups providing a rationale for histology-based treatment in NSCLC. Currently NSCLC subtyping is performed based on histopathological examinations and immunohistochemistry. However available methods leave about 10% of NSCLC cases as not otherwise specified...
April 25, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28440064/synthetic-and-analytical-strategies-for-the-quantification-of-phenyl-%C3%AE-valerolactone-conjugated-metabolites-in-human-urine
#10
Nicoletta Brindani, Pedro Mena, Luca Calani, Iris Benzie, Siu-Wai Choi, Furio Brighenti, Franca Zanardi, Claudio Curti, Daniele Del Rio
SCOPE: The contribution of the gut microbiota to the metabolism of catechins and proanthocyanidins remains unclear. Phenyl-γ-valerolactones have been identified as the most representative metabolites of these dietary flavan-3-ols, but their accurate quantification has posed problems because of a lack of appropriate bioanalytical standards. This work aimed at synthesizing a novel set of sulphate- and glucuronide-conjugated phenyl-γ-valerolactones and at developing an analytical platform using UHPLC-ESI-MS/MS for their quantification in urine...
April 25, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28440021/global-patterns-and-trends-in-human-wildlife-conflict-compensation
#11
Jeremy Ravenelle, Philip J Nyhus
Human-wildlife conflict is a major conservation challenge, and compensation for wildlife damage is a widely used economic tool to mitigate this conflict. The effectiveness of this management tool is widely debated. The relative importance of factors associated with compensation success is unclear and little is known about global geographic or taxonomic differences in the application of compensation programs. We carried out a review of the compensation scholarship to examine geographic and taxonomic gaps, analyze patterns of positive and negative comments related to compensation, and assess the relative magnitude of global compensation payments...
April 25, 2017: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/28440000/human-symptom-responses-to-bioeffluents-short-chain-carbonyls-acids-and-long-chain-carbonyls-in-a-simulated-aircraft-cabin-environment
#12
Clifford P Weisel, Nancy Fiedler, Charles J Weschler, Pamela Ohman-Strickland, Krishnan R Mohan, Kathy McNeil, David Space
Occupants of aircraft have reported an array of symptoms related to general discomfort and irritation. Volatile organic compounds (VOCs) have been suggested to contribute to the reported symptoms. VOCs are from products used, bioeffluents from people and ozone reaction products. Thirty-six healthy, young female subjects rated symptoms and environmental quality during an 8-hour exposure to groups of compounds often present in aircraft: 1) long chain carbonyls, 2) simulated bioeffluents, and 3) short chain carbonyls/organic acids...
April 25, 2017: Indoor Air
https://www.readbyqxmd.com/read/28439991/melatonin-a-pleiotropic-molecule-that-modulates-dna-damage-response-and-repair-pathways
#13
REVIEW
Maryam Majidinia, Alireza Sadeghpour, Saeed Mehrzadi, Russel J Reiter, Nasrin Khatami, Bahman Yousefi
DNA repair is responsible for maintaining the integrity of the genome. Perturbations in the DNA repair pathways have been identified in several human cancers. Thus, compounds targeting DNA damage response (DDR) hold great promise in cancer therapy. A great deal of effort, in pursuit of new anticancer drugs, has been devoted to understanding the basic mechanisms and functions of the cellular DNA repair machinery. Melatonin, a widely-produced indoleamine in all organisms is associated with a reduced risk of cancer and has multiple regulatory roles on the different aspects of the DDR and DNA repair...
April 25, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28439981/evolution-of-the-plasma-proteome-of-divers-before-and-after-a-single-scuba-dive
#14
Jacky Lautridou, Vianney Pichereau, Sébastien Artigaud, Benoit Bernay, Otto Barak, Ryan Hoiland, Andrew T Lovering, Ingrid Eftedal, Zeljko Dujic, François Guerrero
PURPOSE: Decompression sickness (DCS) is a poorly understood and complex systemic disease caused by inadequate desaturation following a reduction of ambient pressure. A previous proteomic study of ours showed that DCS occurrence but not diving was associated with changes in the plasma proteome in rats, including a dramatic decrease of abundance of the tetrameric form of Transthyretin (TTR). The present study aims to assess the impact on the human blood proteome of a dive inducing significant decompression stress but without inducing DCS symptoms...
April 25, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28439952/comparison-of-cytotoxicity-genotoxicity-and-immunological-inflammatory-biomarker-activity-of-several-endodontic-sealers-against-immortalized-human-pulp-cells
#15
F C Martinho, S E A Camargo, A M M Fernandes, M S Campos, R F Prado, C H R Camargo, M C Valera
AIM: To establish an SV40 T-Ag-transfected cell line of human pulp-derived cells in order to compare the cytotoxicity, genotoxicity and to investigate the activities of immunological biomarkers of several endodontic sealers. METHODOLOGY: Primary human pulp cells and transfected cells were cultured. Cell morphology and proliferation were analyzed, and the expression of cell-specific gene transcripts and proteins was detected by RT-PCR and immunohistochemistry. Transfection of human pulp-derived cells resulted in an immortalized cell line retaining phenotypic characteristics from the primarily cells tested...
April 25, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28439947/sirt1-hsf1-hsps-pathway-is-essential-for-exenatide-alleviated-lipid-induced-hepatic-endoplasmic-reticulum-stress
#16
Xiaobin Zheng, Fen Xu, Hua Liang, Huanyi Cao, Mengyin Cai, Wen Xu, Jianping Weng
Recent studies have indicated lipid-induced endoplasmic reticulum (ER) stress to be a major contributor to the progression of hepatic steatosis. Exenatide (Exendin-4), a glucagon-like peptide-1 receptor agonist, is known to improve hepatic steatosis with accumulating evidence. In this study, we investigated whether exenatide could alleviate lipid-induced hepatic ER stress through mammal sirtuin1 (SIRT1) and illustrated the detailed mechanisms. Male C57BL/6J mice challenged with a high-fat diet (HFD) were then treated with exenatide or normal saline by intraperitoneal injection for 4 weeks...
April 25, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28439937/maternal-nutrient-restriction-during-pregnancy-and-lactation-leads-to-impaired-right-ventricular-function-in-young-adult-baboons
#17
Anderson H Kuo, Cun Li, Hillary F Huber, Matthias Schwab, Peter W Nathanielsz, Geoffrey D Clarke
Maternal nutrient restriction induces IUGR increasing later life chronic disease including cardiovascular dysfunction. Our left ventricular (LV) CMRI studies in IUGR baboons (8 M, 8 F, 5.7 years- human equivalent approximately 25 years), control offspring (8 M, 8 F, 5.6 years), and normal elderly (OLD) baboons (6 M, 6 F, mean 15.9 years) revealed long-term LV abnormalities in IUGR offspring. Although it is known that right ventricular (RV) function is dependent on LV health, the IUGR right ventricle (RV) remains poorly studied...
April 25, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28439929/the-roles-of-autophagy-and-hypoxia-in-human-inflammatory-periapical-lesions
#18
H Y Huang, W C Wang, P Y Lin, C P Huang, C Y Chen, Y K Chen
AIM: To determine the expressions of hypoxia-related [hypoxia-inducible transcription factors (HIF)-1α, BCL2/adenovirus E1B 19 kDa protein-interacting protein 3 (BNIP3), and phospho-adenosine monophosphate activated protein kinase (pAMPK)] and autophagy-related [microtubule-associated protein 1 light chain 3 (LC3), beclin-1 (BECN-1), autophagy-related gene (Atg)5-12, and p62] proteins in human inflammatory periapical lesions. METHODOLOGY: Fifteen samples of radicular cysts (RCs) and 21 periapical granulomas (PGs), combined with 17 healthy dental pulp tissues were examined...
April 25, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28439921/impact-of-obstructive-sleep-apnoea-and-intermittent-hypoxia-on-cardiovascular-and-cerebrovascular-regulation
#19
Andrew E Beaudin, Xavier Waltz, Patrick J Hanly, Marc J Poulin
Obstructive sleep apnoea (OSA) is associated with increased risk of cardiovascular and cerebrovascular disease, a consequence attributed in part to chronic intermittent hypoxia (IH) resulting from repetitive apnoeas during sleep. Although findings from experimental animal, and human, models have shown that IH is detrimental to vascular regulation, the severity of IH used in many of these animal studies (e.g. inspired fraction of oxygen (FI O2 ) = 2-3%; oxygen desaturation index (ODI) = 120 events h(-1) ) is considerably greater than that observed in the majority of patients with OSA...
April 24, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28439720/the-impact-of-oral-promethazine-on-human-whole-body-motion-perceptual-thresholds
#20
Ana Diaz-Artiles, Adrian J Priesol, Torin K Clark, David P Sherwood, Charles M Oman, Laurence R Young, Faisal Karmali
Despite the widespread treatment of motion sickness symptoms using drugs and the involvement of the vestibular system in motion sickness, little is known about the effects of anti-motion sickness drugs on vestibular perception. In particular, the impact of oral promethazine, widely used for treating motion sickness, on vestibular perceptual thresholds has not previously been quantified. We examined whether promethazine (25 mg) alters vestibular perceptual thresholds in a counterbalanced, double-blind, within-subject study...
April 24, 2017: Journal of the Association for Research in Otolaryngology: JARO
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