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https://www.readbyqxmd.com/read/28535644/-effect-of-neuroglobin-on-oxygen-glucose-deprivation-and-reoxygenation-induced-autophagy-in-a-human-neuroblastoma-cell-line
#1
S Y Deng, Y H Ai, H Gong, L Wu, C X Chen, Y M Wang, Z Y Liu, L Huang, Q Y Peng, L N Zhang
Objective: To investigate the effect of neuroglobin on oxygen-glucose deprivation and reoxygenation (OGD/R) induced autophagy in a human neuroblastoma cell line (SH-SY5Y). Methods: SH-SY5Y cells were transfected with plasmids (or vector) to establish a stable cell line of NGB overexpression (OE). After treated with OGD/R, cells were collected for the analyses of mRNA (Atg5, Atg7, BECN1 and FUNDC1) and protein levels of LC3. Furthermore, mitochondrial and cytosolic fractions were isolated for protein levels of PINK1 and Parkin...
May 23, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28535477/the-effect-of-crash-characteristics-on-cyclist-injuries-an-analysis-of-virginia-automobile-bicycle-crash-data
#2
Erin Robartes, T Donna Chen
This paper examines bicyclist, automobile driver, vehicle, environmental, and roadway characteristics that influence cyclist injury severity in order to determine which factors should be addressed to mitigate the worst bicyclist injuries. An ordered probit model is used to examine single bicycle-single vehicle crashes from Virginia police crash report data from 2010 to 2014. Five injury severity levels are considered: fatalities, severe injuries, minor or possible injuries, no apparent injuries, and no injury...
May 20, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28535410/effect-of-enzyme-inhibition-on-perampanel-pharmacokinetics-why-study-design-matters
#3
Barry E Gidal, Rama Maganti, Antonio Laurenza, Haichen Yang, David A Verbel, Edgar Schuck, Jim Ferry
OBJECTIVES: Perampanel, a selective, noncompetitive AMPA receptor antagonist, is indicated as adjunctive therapy for the treatment of partial seizures with or without secondarily generalized seizures and primary generalized tonic-clonic seizures in patients with epilepsy aged 12years and older. In vitro studies and Phase I trials indicate that perampanel is metabolized almost exclusively by CYP3A, with an elimination half-life (t1/2) averaging approximately 105h. Understanding of pharmacokinetic (PK) interactions-enzyme inhibition or induction-and anticipating their occurrence are important for management of patients with epilepsy...
April 26, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28535368/unfolding-the-folding-problem-of-the-cerebral-cortex-movin-and-groovin
#4
Yasuhiro Itoh, Alexandros Poulopoulos, Jeffrey D Macklis
The development of reproducible folding in the gyrencephalic cerebral cortex is a topic of great interest to neuroscientists. In a recent paper in Cell, del Toro et al. (2017) show that changing the adhesive properties of neurons in the normally lissencephalic mouse cortex leads to the formation of stereotyped folding.
May 22, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28535337/overall-structural-model-of-ns5a-protein-from-hepatitis-c-virus-and-modulation-by-mutations-confering-resistance-of-virus-replication-to-cyclosporin-a
#5
Aurelie Badillo, Veronique Brechot, Stephane Sarrazin, François-Xavier Cantrelle, Frederic Delolme, Marie-Laure Fogeron, Jennifer Molle, Roland Montserret, Anja Bockmann, Ralf Bartenschlager, Volker Lohmann, Guy Lippens, Sylvie Ricard-Blum, Xavier Hanoulle, Francois Penin
Hepatitis C virus (HCV) nonstructural protein 5A (NS5A) is a RNA-binding phosphoprotein composed of a N-terminal membrane anchor (AH), a structured domain 1 (D1) and two intrinsically disordered domains (D2 and D3). The knowledge of the functional architecture of this multifunctional protein remains limited. We report here that NS5A-D1D2D3 produced in a wheat germ cell-free system is obtained under a highly phosphorylated state. Its NMR analysis revealed that these phosphorylations do not change the disordered nature of D2 and D3 domains but increase the number of conformers due to partial phosphorylations...
May 23, 2017: Biochemistry
https://www.readbyqxmd.com/read/28535307/intergenerational-impact-of-paternal-lifetime-exposures-to-both-folic-acid-deficiency-and-supplementation-on-reproductive-outcomes-and-imprinted-gene-methylation
#6
Lundi Ly, Donovan Chan, Mahmoud Aarabi, Mylène Landry, Nathalie A Behan, Amanda J MacFarlane, Jacquetta Trasler
STUDY QUESTION: Do paternal exposures to folic acid deficient (FD), and/or folic acid supplemented (FS) diets, throughout germ cell development adversely affect male germ cells and consequently offspring health outcomes? SUMMARY ANSWER: Male mice exposed over their lifetimes to both FD and FS diets showed decreased sperm counts and altered imprinted gene methylation with evidence of transmission of adverse effects to the offspring, including increased postnatal-preweaning mortality and variability in imprinted gene methylation...
May 23, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28535268/evaluation-of-the-glucocorticoid-receptor-as-a-biomarker-of-treatment-response-in-vogt-koyanagi-harada-disease
#7
Cristhian A Urzua, Julia Guerrero, Hector Gatica, Victor Velasquez, Annelise Goecke
Purpose: This study is aimed to investigate the role of glucocorticoid receptor (GR) isoforms in peripheral blood mononuclear cells (PBMC) as biomarkers of glucocorticoid (GC) resistance and to validate a set of clinical predictive factors in patients with Vogt-Koyanagi-Harada (VKH) disease. Methods: This was a prospective cohort study that included a total of 21 patients with VKH. A complete ophthalmologic evaluation was carried out at baseline that recorded the presence of any clinical predictive factors (visual acuity ≤ 20/200, tinnitus, chronic disease, and fundus depigmentation)...
February 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28535250/evidence-for-the-deregulation-of-protein-turnover-pathways-in-atm-deficient-mouse-cerebellum-an-organotypic-study
#8
Catherine D Kim, Ryan E Reed, Meredith A Juncker, Zhide Fang, Shyamal D Desai
Interferon-stimulated gene 15 (ISG15), an antagonist of the ubiquitin pathway, is elevated in cells and brain tissues obtained from ataxia telangiectasia (A-T) patients. Previous studies reveal that an elevated ISG15 pathway inhibits ubiquitin-dependent protein degradation, leading to activation of basal autophagy as a compensatory mechanism for protein turnover in A-T cells. Also, genotoxic stress (ultraviolet [UV] radiation) deregulates autophagy and induces aberrant degradation of ubiquitylated proteins in A-T cells...
May 23, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28535179/reduced-frequency-of-cells-latently-infected-with-replication-competent-hiv-1-in-virally-suppressed-individuals-living-in-rakai-uganda
#9
Jessica L Prodger, Jun Lai, Steven J Reynolds, Jeanne C Keruly, Richard D Moore, Jingo Kasule, Taddeo Kityamuweesi, Paul Buule, David Serwadda, Martha Nason, Adam A Capoferri, Stephen F Porcella, Robert F Siliciano, Andrew D Redd, Janet D Siliciano, Thomas C Quinn
Background: HIV-1 persists in latently infected resting CD4+ T cells (rCD4), posing a major barrier to curing HIV-1 infection. Previous studies have quantified this pool of latently infected cells in Americans; however, no study has quantified this reservoir in sub-Saharan Africans, who make up the largest population of HIV-1-infected individuals globally. Methods: Peripheral blood was collected from 70 virally suppressed HIV-1-infected individuals from Rakai District, Uganda, who had initiated antiretroviral therapy (ART) during chronic infection...
May 23, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28535176/invited-commentary-30-year-perspective-on-the-seven-countries-study
#10
Henry Blackburn
In a 1986 article (Am J Epidemiol. 1986;124(6):903-915), Keys et al. described and discussed 15-year findings from 15 cohorts of the Seven Countries Study (SCS), the first systematic study of diet, risk characteristics, disease-specific death rates, and their ecologic and individual associations both among and within whole populations of working men in regions with contrasting traditional diets. The SCS findings included 30-fold cohort differences in rates of death from coronary heart disease and 3-fold differences in rates of death from all causes, along with strong ecologic associations among diet, risk factors, and disease rates...
May 23, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28535128/low-and-high-let-ionizing-radiation-induces-delayed-homologous-recombination-that-persists-for-two-weeks-before-resolving
#11
Christopher P Allen, Hirokazu Hirakawa, Nakako Izumi Nakajima, Sophia Moore, Jingyi Nie, Neelam Sharma, Mayumi Sugiura, Yuko Hoki, Ryoko Araki, Masumi Abe, Ryuichi Okayasu, Akira Fujimori, Jac A Nickoloff
Genome instability is a hallmark of cancer cells and dysregulation or defects in DNA repair pathways cause genome instability and are linked to inherited cancer predisposition syndromes. Ionizing radiation can cause immediate effects such as mutation or cell death, observed within hours or a few days after irradiation. Ionizing radiation also induces delayed effects many cell generations after irradiation. Delayed effects include hypermutation, hyper-homologous recombination, chromosome instability and reduced clonogenic survival (delayed death)...
May 23, 2017: Radiation Research
https://www.readbyqxmd.com/read/28535105/the-importance-of-economic-perspective-and-quantitative-approaches-in-oncology-value-frameworks-of-drug-selection-and-shared-decision-making
#12
A Reginald Waldeck, Marc F Botteman, Richard E White, Ben A van Hout
The debate around value in oncology drug selection has been prominent in recent years, and several professional bodies have furthered this debate by advocating for so-called value frameworks. Herein, we provide a viewpoint on these value frameworks, emphasizing the need to consider 4 key aspects: (1) the economic underpinnings of value; (2) the importance of the perspective adopted in the valuation; (3) the importance of the difference between absolute and relative measures of risk and measuring patient preferences; and (4) the recognition of multiple quality-of-life (QoL) domains, and the aggregation and valuation of those domains, through utilities within a multicriteria decision analysis, may allow prioritization of QoL above the tallying of safety events, particularly in a value framework focusing on the individual patient...
June 2017: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/28535082/evaluating-early-interim-fluorine-18-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-with-the-suvmax-liver-based-interpretation-for-predicting-the-outcome-in-diffuse-large-b-cell-lymphoma
#13
Yang Fan, Yuewei Zhang, Zhi Yang, Zhitao Ying, Nina Zhou, Chen Liu, Yuqin Song, Jun Zhu, Xuejuan Wang
Interim (18)F-FDG PET/CT is an effective predictor in patients with DLBCL, but the standard evaluating criteria were controversial. In this study, investigators tried to investigate whether the liver SUVmax (SUVmax-liver)-based interpretation could improve the accuracy of predicting the outcomes, comparing with the Deauville five-point scale (5-PS) and the reduction rate of the maximum standardized uptake value (ΔSUVmax) criteria. In 119 patients, PET/CT after two chemotherapy cycles (PET2) were evaluated with the SUVmax-liver-based interpretation, 5-PS, and ΔSUVmax criteria...
May 23, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28535064/ten-fold-enhancement-of-inas-nanowire-photoluminescence-emission-with-an-inp-passivation-layer
#14
Pamela Jurczak, Yunyan Zhang, Jiang Wu, Ana M Sanchez, Martin Aagesen, Huiyun Liu
In this letter, we demonstrate that a significant improvement of optical performance of InAs nanowires can be achieved by capping the core InAs nanowires with a thin InP shell, which successfully passivates the surface states reducing the rate of non-radiative recombination. The improvements have been confirmed by detailed photoluminescence measurements, which showed up to ten-fold increase in the intensity of room-temperature photoluminescence from the capped InAs/InP nanowires compared to the sample with core-only InAs nanowires...
May 23, 2017: Nano Letters
https://www.readbyqxmd.com/read/28535041/remarkably-stereospecific-utilization-of-atp-%C3%AE-%C3%AE-halomethylene-analogues-by-protein-kinases
#15
Feng Ni, Alvin Kung, Yankun Duan, Vivek Shah, Carolina Amador, Ming Guo, Xuegong Fan, Lin Chen, Yongheng Chen, Charles E McKenna, Chao Zhang
ATP analogues containing a CXY group in place of the α,β-bridging oxygen atom are powerful chemical probes for studying ATP-dependent enzymes. A limitation of such probes has been that conventional synthetic methods generate a mixture of diastereomers when the bridging carbon substitution is nonequivalent (X ≠ Y). We report here a novel method based on derivatization of a bisphosphonate precursor with a D-phenylglycine chiral auxiliary that enables preparation of the individual diastereomers of α,β-CHF-ATP and α,β-CHCl-ATP, which differ only in the configuration at the CHX carbon...
May 23, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28534999/mir-370-regulates-cell-proliferation-and-migration-by-targeting-egfr-in-gastric-cancer
#16
Tao Ning, Haiyang Zhang, Xinyi Wang, Shuang Li, Le Zhang, Ting Deng, Likun Zhou, Rui Liu, Xia Wang, Ming Bai, Shaohua Ge, Hongli Li, Dingzhi Huang, Guoguang Ying, Yi Ba
Epidermal growth factor receptor (EGFR) is known to be overexpressed in ~30% of gastric cancer (GC) cases, and may serve as an effective biomarker for predicting the clinical benefit of anti-EGFR therapy. However, the mechanism underlying the regulation of EGFR expression remains unknown. Evidence indicates that post-transcriptional regulation may exist in the process of EGFR expression. In the present study, we aimed to explore whether miR-370 is involved in this process, and how it impacts the biological behaviors of GC cells...
May 23, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28534971/mir-483-5p-plays-a-protective-role-in-chronic-obstructive-pulmonary-disease
#17
Zhenyu Shen, Wenxiang Tang, Jiang Guo, Shenghua Sun
Altered microRNA (miRNA or miR) expression has been reported in chronic obstructive pulmonary disease (COPD). The present study aimed to identify the involvement of miRNAs in the pathophysiology of COPD and to explore the effects of various miRNAs with significant alteration on COPD in vitro. We conducted high‑throughput analysis of miRNAs (miRNA microarray) in lung samples from 10 COPD patients and 10 healthy persons with a validation experiment using quantitative (real‑time) polymerase chain reaction (real‑time PCR) panels...
May 18, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28534963/n-acetylglucosaminyltransferase-iva-promotes-invasion-of-choriocarcinoma
#18
Kimihiro Nishino, Eiko Yamamoto, Kaoru Niimi, Yoko Sekiya, Yoriko Yamashita, Fumitaka Kikkawa
Gestational trophoblastic neoplasia (GTN) results from the malignant transformation of placental trophoblasts which secrete human chorionic gonadotropin (hCG) as do normal placenta or hydatidiform mole. N-acetylglucosaminyltransferase IV (GnT-IV) is a glycosyltransferase which catalyses the formation of β1,4GlcNAc branches on the mannose core of N-glycans. Previous studies reported that β1,4GlcNAc branches on hCG were detected in GTN but not in normal pregnancy or hydatidiform mole. The aim of the present study was to understand the role of GnT-IVa in choriocarcinoma and find the target proteins for GnT-IVa glycosylation which contribute to the malignancy of choriocarcinoma...
May 23, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28534955/long-non%C3%A2-coding-rna-ab019562-promotes-cell-proliferation-and-metastasis-in-human-hepatocellular-carcinoma
#19
Fan Wu, Jie Li, Xin Du, Weisan Zhang, Ping Lei, Qiang Zhang
Increasing evidence has supported the prognostic and therapeutic values of long non-coding RNAs (LncRNAs) in human tumorigenesis. Hepatocellular carcinoma (HCC), as one of the most refractory diseases, continues to warrant investigation for novel clues to enable early diagnosis. In the present study, the role of LncRNA AB019562 in cell proliferation and metastasis was investigated in HCC. Reverse transcription‑quantitative polymerase chain reaction analysis was performed to determine the expression of AB019562 in clinical HCC samples and cultured HCC cells...
May 19, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28534953/proteomic-analysis-of-differentially-expressed-proteins-in-kidneys-of-brain-dead-rabbits
#20
Ling Li, Ning Li, Chongxiang He, Wei Huang, Xiaoli Fan, Zibiao Zhong, Yanfeng Wang, Qifa Ye
A large number of previous clinical studies have reported a delayed graft function for brain dead donors, when compared with living relatives or cadaveric organ transplantations. However, there is no accurate method for the quality evaluation of kidneys from brain‑dead donors. In the present study, two‑dimensional gel electrophoresis and MALDI‑TOF MS‑based comparative proteomic analysis were conducted to profile the differentially‑expressed proteins between brain death and the control group renal tissues...
May 19, 2017: Molecular Medicine Reports
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