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https://www.readbyqxmd.com/read/29341905/intensity-difference-limens-in-adult-cba-caj-mice-mus-musculus
#1
Anastasiya Kobrina, Katrina L Toal, Micheal L Dent
Mice have emerged as important models of auditory perception and acoustic communication. To study and model complex sound perception and communication, basic hearing abilities have to be established, yet intensity difference limens have not been measured in CBA/CAJ mice. Nine mice were trained using operant conditioning procedures with positive reinforcement to discriminate sound intensity across frequencies. Intensity difference limens were measured for 12, 16, 24, and 42 kHz tones at 10 and 30 dB sensation levels...
January 13, 2018: Behavioural Processes
https://www.readbyqxmd.com/read/29333953/the-irreversible-erbb1-2-4-inhibitor-neratinib-interacts-with-the-bcl-2-inhibitor-venetoclax-to-kill-mammary-cancer-cells
#2
Laurence Booth, Jane L Roberts, Francesca Avogadri-Connors, Richard E CutlerJr, Alshad S Lalani, Andrew Poklepovic, Paul Dent
The irreversible ERBB1/2/4 inhibitor, neratinib, down-regulates the expression of ERBB1/2/4 as well as the levels of MCL-1 and BCL-XL. Venetoclax (ABT199) is a BCL-2 inhibitor. At physiologic concentrations neratinib interacted in a synergistic fashion with venetoclax to kill HER2+ and TNBC mammary carcinoma cells. This was associated with the drug-combination: reducing the expression and phosphorylation of ERBB1/2/3; in an eIF2α-dependent fashion reducing the expression of MCL-1 and BCL-XL and increasing the expression of Beclin1 and ATG5; and increasing the activity of the ATM-AMPKα-ULK1 S317 pathway which was causal in the formation of toxic autophagosomes...
January 15, 2018: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/29330871/multi-site-n-glycan-mapping-study-2-uhplc
#3
Ákos Szekrényes, SungAe Suhr Park, Eoin Cosgrave, Aled Jones, Ted Haxo, Michael Kimzey, Shiva Pourkaveh, Zoltán Szabó, Zoran Sosic, Peng Feng, Preeti Sejwal, Kelsey Dent, David Michels, Gordon Freckleton, Jun Qian, Catherine Lancaster, Toni Duffy, Melissa Schwartz, Jiann-Kae Luo, Jonathan van Dyck, Pui-King Leung, Marcell Olajos, Ronald Kowle, Kai Gao, Wenbo Wang, Jo Wegstein, Samnang Tep, Apolka Domokos, Csaba Váradi, András Guttman
In the first part of this publication, the results from an international study evaluating the precision (i.e., repeatability and reproducibility) of N-glycosylation analysis using capillary electrophoresis of APTS-labeled N-glycans were presented. The corresponding results from ultra-high performance liquid chromatography (UHPLC) with fluorescence detection are presented here from 12 participating sites. All participants used the same lot of samples, reagents, and columns to perform the assays. Elution time, peak area and peak area percent values were determined for all peaks ≥0...
January 13, 2018: Electrophoresis
https://www.readbyqxmd.com/read/29330325/cutting-edge-plasmodium-falciparum-induces-trained-innate-immunity
#4
Jacob E Schrum, Juliet N Crabtree, Katherine R Dobbs, Michael C Kiritsy, George W Reed, Ricardo T Gazzinelli, Mihai G Netea, James W Kazura, Arlene E Dent, Katherine A Fitzgerald, Douglas T Golenbock
Malarial infection in naive individuals induces a robust innate immune response. In the recently described model of innate immune memory, an initial stimulus primes the innate immune system to either hyperrespond (termed training) or hyporespond (tolerance) to subsequent immune challenge. Previous work in both mice and humans demonstrated that infection with malaria can both serve as a priming stimulus and promote tolerance to subsequent infection. In this study, we demonstrate that initial stimulation with Plasmodium falciparum-infected RBCs or the malaria crystal hemozoin induced human adherent PBMCs to hyperrespond to subsequent ligation of TLR2...
January 12, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29327055/comparing-neoadjuvant-nab-paclitaxel-vs-paclitaxel-both-followed-by-anthracycline-regimens-in-women-with-erbb2-her2-negative-breast-cancer-the-evaluating-treatment-with-neoadjuvant-abraxane-etna-trial-a-randomized-phase-3-clinical-trial
#5
Luca Gianni, Mauro Mansutti, Antonio Anton, Lourdes Calvo, Giancarlo Bisagni, Begoña Bermejo, Vladimir Semiglazov, Marc Thill, Jose Ignacio Chacon, Arlene Chan, Serafin Morales, Isabel Alvarez, Arrate Plazaola, Milvia Zambetti, Andrew D Redfern, Christian Dittrich, Rebecca Alexandra Dent, Domenico Magazzù, Raffaella De Fato, Pinuccia Valagussa, Ignacio Tusquets
Importance: Studies of neoadjuvant chemotherapy regimens using anthracyclines followed by taxanes have reported a doubling of pathological complete remission (pCR) rates compared with anthracycline-based regimens alone. A reverse sequence did not reduce activity. Nab-paclitaxel is an albumin-bound nanoparticle of paclitaxel that allows for safe infusion without premedication, and its use led to a significantly higher rate of pCR in the GeparSepto trial. Objective: To determine whether nab-paclitaxel improves the outcomes of early and locally advanced human epidermal growth factor receptor 2 (ERBB2/HER2)-negative breast cancer compared with paclitaxel when delivered in a neoadjuvant setting...
January 11, 2018: JAMA Oncology
https://www.readbyqxmd.com/read/29320372/a-dentin-derived-hydrogel-bioink-for-3d-bioprinting-of-cell-laden-scaffolds-for-regenerative-dentistry
#6
Avathamsa Athirasala, Anthony Tahayeri, Greeshma Thrivikraman, Cristiane M França, Nelson Monteiro, Victor Tran, Jack Ferracane, Luiz E Bertassoni
Recent studies in tissue engineering have adopted extracellular matrix (ECM) derived scaffolds as natural and cytocompatible microenvironments for tissue regeneration. The dentin matrix, specifically, has been shown to be associated with a host of soluble and insoluble signaling molecules that can promote odontogenesis. Here, we have developed a novel bioink, blending printable alginate (3% w/v) hydrogels with the soluble and insoluble fractions of the dentin matrix. We have optimized the printing parameters and the concentrations of the individual components of the bioink for print accuracy, cell viability and odontogenic potential...
January 10, 2018: Biofabrication
https://www.readbyqxmd.com/read/29315963/distinct-and-heterogeneous-trajectories-of-self-perceived-cognitive-impairment-among-asian-breast-cancer-survivors
#7
Terence Ng, Sreemanee Raaj Dorajoo, Yin Ting Cheung, Yick Ching Lam, Hui Ling Yeo, Maung Shwe, Yan Xiang Gan, Koon Mian Foo, Wei-Jen Kiley Loh, Si-Lin Koo, Amit Jain, Guek Eng Lee, Rebecca Dent, Yoon Sim Yap, Raymond Ng, Alexandre Chan
OBJECTIVES: Currently, there are no studies that have established the self-perceived cognitive trajectories experienced by breast cancer patients (BCPs) post-chemotherapy. Therefore, we characterized the long-term trajectory of self-perceived cognitive function among Asian early-stage BCPs using the minimal clinically important difference (MCID) of a subjective measure of cognitive function. METHODS: Early-stage BCPs who received chemotherapy were recruited and assessed at four time points: Before chemotherapy initiation (T1), 6 weeks post-chemotherapy initiation (T2), 12 weeks post-chemotherapy initiation (T3), and 15-months post-chemotherapy initiation (T4)...
January 9, 2018: Psycho-oncology
https://www.readbyqxmd.com/read/29313215/association-of-mitochondrial-dna-content-in-peripheral-blood-with-cancer-related-fatigue-and-chemotherapy-related-cognitive-impairment-in-early-stage-breast-cancer-patients-a-prospective-cohort-study
#8
Jung-Woo Chae, Peh Siang Chua, Terence Ng, Angie Hui Ling Yeo, Maung Shwe, Yan Xiang Gan, Sreemanee Dorajoo, Koon Mian Foo, Kiley Wei-Jen Loh, Si-Lin Koo, Wen Yee Chay, Tira Jing Ying Tan, Sok Yuen Beh, Elaine Hsuen Lim, Guek Eng Lee, Rebecca Dent, Yoon Sim Yap, Raymond Ng, Han Kiat Ho, Alexandre Chan
PURPOSE: Cancer-related fatigue (CRF) and chemotherapy-related cognitive impairment (CRCI) are reported to be associated with mitochondrial dysfunction. Hence, mitochondrial DNA (mtDNA) content, a biomarker of mitochondrial dysfunction, is hypothesized to correlate with the onset of CRF and CRCI. This study aims to evaluate the association between peripheral blood mtDNA content reduction and severity of CRF and CRCI in patients receiving chemotherapy. METHODS: This was a prospective cohort study...
January 8, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29302589/evaluation-of-bone-healing-using-rhbmp-2-soaked-hydroxyapatite-in-ridge-augmentation-a-prospective-observational-study
#9
Hyun-Suk Kim, Ju-Cheol Park, Pil-Young Yun, Young-Kyun Kim
Background: The goal of this study is to evaluate complication and effectiveness of alveolar ridge augmentations using a hydroxyapatite-based alloplastic bony substitute with rhBMP-2. Methods: A total of 10 patients (4 males, 6 females; 58.5 ± 8.6 years) participated in this clinical research. Alveolar ridge augmentations were performed in edentulous (4 maxillary posterior, 5 mandibular posterior, and 1 mandibular anterior) regions. Anorganic bovine bone (ABB; Bio-Oss®, Geistlich Pharma AG, Wolhusen, Switzerland) was used as the bone graft material in the control group (n = 5)) while hydroxyapatite-based alloplastic bony substitute with rhBMP-2(HA+rhBMP-2; NOVOSIS®-Dent, CGBio Inc...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29300302/splicing-analysis-of-exonic-ocrl-mutations-causing-lowe-syndrome-or-dent-2-disease
#10
Lorena Suarez-Artiles, Ana Perdomo-Ramirez, Elena Ramos-Trujillo, Felix Claverie-Martin
Mutations in the OCRL gene are associated with both Lowe syndrome and Dent-2 disease. Patients with Lowe syndrome present congenital cataracts, mental disabilities and a renal proximal tubulopathy, whereas patients with Dent-2 disease exhibit similar proximal tubule dysfunction but only mild, or no additional clinical defects. It is not yet understood why some OCRL mutations cause the phenotype of Lowe syndrome, while others develop the milder phenotype of Dent-2 disease. Our goal was to gain new insights into the consequences of OCRL exonic mutations on pre-mRNA splicing...
January 4, 2018: Genes
https://www.readbyqxmd.com/read/29295014/the-views-of-ex-police-officers-on-child-abuse-case-attrition-in-the-united-kingdom
#11
Sarah J Krahenbuhl, Helen R Dent
Attrition in child abuse cases is of continuing concern. International research has produced evidence to suggest that the form and quality of the evidence available in many child abuse cases is of insufficient quality to allow progression through the judicial system. Recent revelations have led to an increase in public and professional awareness of the prevalence of child sexual abuse, and how this is managed by the legal and social care systems. The aim of this research was to explore the opinions of ex-Police Officers who had direct experience relating to the management of child abuse cases about the factors affecting case progression...
November 1, 2017: Journal of Interpersonal Violence
https://www.readbyqxmd.com/read/29286527/experience-of-correcting-endothelial-dysfunction-in-children-residents-of-radioactively-contaminated-areas-by-nitric-oxide-potential-donator-citrulline
#12
Ye I Stepanova, I Ye Kolpakov, V M Zygalo, V Yu Vdovenko, V H Kondrashova, O S Leonovich, V V Kryzhanivska
OBJECTIVE: to determine the effectiveness of citrulline use for correcting endothelial dysfunction in children resi dents of radioactively contaminated areas. MATERIALS AND METHODS: A group of children residents of radioactively contaminated areas with the presence of clinical and paraclinical signs of endothelial dysfunction was selected to assess the effectiveness of correcting endothelial dysfunction by the usage of NO potential donator - citrulline according to the data of selective screen ing...
December 2017: Problemy Radiat︠s︡iĭnoï Medyt︠s︡yny Ta Radiobiolohiï
https://www.readbyqxmd.com/read/29286523/myastenia-and-small-doses-of-ionizing-radiation-experience-of-successful-use-of-rituximab-for-treatment-of-an-irradiated-with-myasthenia-gravis
#13
V I Kravchenko, A A Chumak, K M Loganovsky, I S Diagil, V F Kuzmenko
A clinical case of the rituximab («Rituksim», «Mabthera») use to treat a man affected by the Chornobyl NPP acci dent with malignant resistant form of myasthenia gravis in conjunction with chronic mixed infection by Toxoplasma, Epstein Barr virus, Cytomegalovirus and Herpes simplex virus is described. In the dynamics of two year's observa tion the clinical efficacy of monoclonal antibodies was shown as the main symptoms stabilization and reducing doses of glucocorticoid and anticholinergic therapy. The positive effect was marked in the nearest and remote peri ods...
December 2017: Problemy Radiat︠s︡iĭnoï Medyt︠s︡yny Ta Radiobiolohiï
https://www.readbyqxmd.com/read/29286501/reconstruction-of-individualized-doses-of-subjects-from-the-ukrainian-state-register-of-persons-that-affected-due-to-chornobyl-accident-and-reside-in-korosten-raion-of-zhytomyr-oblast
#14
O M Ivanova, S V Masiuk, Z N Boiko, M I Chepurny, V B Gerasymenko, G V Fedosenko, V V Vasylenko, L O Lytvynets, V O Pikta, L M Kovgan, N S Zhadan, S O Tereshchenko, I G Kravchenko, G I Коrtushin, O D Marcenjuk, A G Kukush
STUDY OBJECTIVE: To elaborate an ecological dosimetric model of reconstruction individualized exposure doses of subjects from the State Register of Ukraine (SRU) - of persons, affected due to Chornobyl accident and reside at the radioactive contaminated territory of Korosten raion of Zhytomyr Oblast, and to calculate exposure doses for those persons. MATERIALS AND METHODS: In the paper, an ecological dosimetric model is presented which is elaborated in order to individualize exposure doses of people who reside in Korosten raion of Zhytomyr Oblast and are registered in SRU...
December 2017: Problemy Radiat︠s︡iĭnoï Medyt︠s︡yny Ta Radiobiolohiï
https://www.readbyqxmd.com/read/29282072/a-pilot-study-to-understand-feasibility-and-acceptability-of-stool-and-cord-blood-sample-collection-for-a-large-scale-longitudinal-birth-cohort
#15
S R Bailey, C L Townsend, H Dent, C Mallet, E Tsaliki, E M Riley, M Noursadeghi, T D Lawley, A J Rodger, P Brocklehurst, N Field
BACKGROUND: Few data are available to guide biological sample collection around the time of birth for large-scale birth cohorts. We are designing a large UK birth cohort to investigate the role of infection and the developing immune system in determining future health and disease. We undertook a pilot to develop methodology for the main study, gain practical experience of collecting samples, and understand the acceptability of sample collection to women in late pregnancy. METHODS: Between February-July 2014, we piloted the feasibility and acceptability of collecting maternal stool, baby stool and cord blood samples from participants recruited at prolonged pregnancy and planned pre-labour caesarean section clinics at University College London Hospital...
December 28, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29275563/-understanding-new-progress-in-prosthodontics-from-the-perspective-of-updates-in-the-glossary-of-prosthodontic-terms
#16
T Jiang
Glossary of Prosthodontic Terms is a standardized vocabulary with international influence. Its ninth edition was published in J Prosthet Dent in 2017, 12 years after the last edition. During this period, great development has taken place in the dental prosthetics due to dental implant and digital dentistry as well as application of new materials and technologies. The research results of dental adhesion, aesthetic dentistry, orofacial function, and tissue regeneration has been fully applied in dental clinic...
December 9, 2017: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/29273624/enhancer-transcription-reveals-subtype-specific-gene-expression-programs-controlling-breast-cancer-pathogenesis
#17
Hector L Franco, Anusha Nagari, Venkat S Malladi, Wenqian Li, Yuanxin Xi, Dana Richardson, Kendra L Allton, Kaori Tanaka, Jing Li, Shino Murakami, Khandan Keyomarsi, Mark T Bedford, Xiaobing Shi, Wei Li, Michelle C Barton, Sharon Y R Dent, W Lee Kraus
Noncoding transcription is a defining feature of active enhancers, linking transcription factor (TF) binding to the molecular mechanisms controlling gene expression. To determine the relationship between enhancer activity and biological outcomes in breast cancers, we profiled the transcriptomes (using GRO-seq and RNA-seq) and epigenomes (using ChIP-seq) of 11 different human breast cancer cell lines representing five major molecular subtypes of breast cancer, as well as two immortalized ("normal") human breast cell lines...
December 22, 2017: Genome Research
https://www.readbyqxmd.com/read/29258795/esophageal-symptoms-and-their-lack-of-association-with-high-resolution-manometry-in-systemic-sclerosis-patients
#18
Ana Cecilia Arana-Guajardo, Gustavo Barrera-Torres, Miguel Ángel Villarreal-Alarcón, David Vega-Morales, Jorge Antonio Esquivel-Valerio
BACKGROUND: The esophageal involvement in systemic sclerosis (SSc) causes impact in the morbidity and mortality. High resolution manometry assesses esophageal involvement. Our aim was to categorize esophageal motor disorder in patients with SSc by HRM. METHODS: We carried out an observational, descriptive and cross-sectional study. All patients underwent HRM as well as semi-structured interviews to assess frequency and severity of upper GI symptoms. Patients also completed the gastroesophageal reflux questionnaire (Carlsson-Dent)...
December 16, 2017: Reumatología Clinica
https://www.readbyqxmd.com/read/29249668/gcn5-regulates-fgf-signaling-and-activates-selective-myc-target-genes-during-early-embryoid-body-differentiation
#19
Li Wang, Evangelia Koutelou, Calley Hirsch, Ryan McCarthy, Andria Schibler, Kevin Lin, Yue Lu, Collene Jeter, Jianjun Shen, Michelle C Barton, Sharon Y R Dent
Precise control of gene expression during development is orchestrated by transcription factors and co-regulators including chromatin modifiers. How particular chromatin-modifying enzymes affect specific developmental processes is not well defined. Here, we report that GCN5, a histone acetyltransferase essential for embryonic development, is required for proper expression of multiple genes encoding components of the fibroblast growth factor (FGF) signaling pathway in early embryoid bodies (EBs). Gcn5-/- EBs display deficient activation of ERK and p38, mislocalization of cytoskeletal components, and compromised capacity to differentiate toward mesodermal lineage...
December 12, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/29247716/airway-exposure-initiates-peanut-allergy-by-involving-the-il-1-pathway-and-t-follicular-helper-cells-in-mice
#20
Joseph J Dolence, Takao Kobayashi, Koji Iijima, James Krempski, Li Y Drake, Alexander L Dent, Hirohito Kita
BACKGROUND: Little is currently known regarding the immunological mechanism(s) that initiate peanut allergy. Notably, peanut proteins have been detected in house dust, and their levels correlate with peanut allergy prevalence. OBJECTIVE: This study aimed to develop a new mouse model for peanut allergy and to investigate the immunological mechanisms involved in peanut allergen sensitization. METHODS: To mimic environmental exposure, naïve mice were exposed to peanut flour by inhalation for up to 4 weeks...
December 13, 2017: Journal of Allergy and Clinical Immunology
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