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https://www.readbyqxmd.com/read/29346409/prediction-of-absolute-risk-of-acute-graft-versus-host-disease-following-hematopoietic-cell-transplantation
#1
Catherine Lee, Sebastien Haneuse, Hai-Lin Wang, Sherri Rose, Stephen R Spellman, Michael Verneris, Katharine C Hsu, Katharina Fleischhauer, Stephanie J Lee, Reza Abdi
Allogeneic hematopoietic cell transplantation (HCT) is the treatment of choice for a variety of hematologic malignancies and disorders. Unfortunately, acute graft-versus-host disease (GVHD) is a frequent complication of HCT. While substantial research has identified clinical, genetic and proteomic risk factors for acute GVHD, few studies have sought to develop risk prediction tools that quantify absolute risk. Such tools would be useful for: optimizing donor selection; guiding GVHD prophylaxis, post-transplant treatment and monitoring strategies; and, recruitment of patients into clinical trials...
2018: PloS One
https://www.readbyqxmd.com/read/29339325/induction-of-anti-agrin-antibodies-causes-myasthenia-gravis-in-mice
#2
Min Yan, Ziyang Liu, Erkang Fei, Wenbing Chen, Xinsheng Lai, Bin Luo, Peng Chen, Hongyang Jing, Jin-Xiu Pan, Michael H Rivner, Wen-Cheng Xiong, Lin Mei
Myasthenia gravis (MG) is an autoimmune disorder ofthe neuromuscular junction (NMJ). Most cases of MG are caused by autoantibodies against the acetylcholine receptor (AChR),muscle-specific kinase (MuSK) and low-density lipoprotein receptor-related protein 4 (LRP4). Recent studies have identified anti-agrin antibodies in MG patients lacking these three antibodies (i.e., triple negative MG). Agrin is a basal lamina protein that has two isoforms. Neural agrin (N-agrin) binds to LRP4 to activate MuSK to induce AChR clusters and is thus critical for NMJ formation...
January 12, 2018: Neuroscience
https://www.readbyqxmd.com/read/29338444/adp53-gendicine-12-years-in-clinic-the-first-approved-gene-therapy-product-for-cancer
#3
Wei-Wei Zhang, Jianglong Li, Dinggang Li, Jiliang Liu, Xiuqin Li, Wei Li, Xiaolong Xu, Michael J Zhang, Lois Chandler, Hong Lin, Aiguo Hu, Wei Xu, Dominic Man-Kit Lam
Gendicine (Recombinant Human p53 Adenovirus, AdRSV-p53), developed by Shenzhen SiBiono GeneTech Company, was approved by CFDA in 2003. It has been used in clinical oncology for 12 years since it entered the market in 2004. As the first-in-class product for cancer gene therapy, Gendicine met its expectation and demonstrated with ample clinical data that it is safe and effective for treating cancer. SiBiono manufactured 41 batches in compliant with CFDA QC/QA requirements. Total 169,571 vials (1.0x1012 vector particles per vial) were used in more than 50,000 patients, among them about 5,000 were international form over 50 nations outside China...
January 16, 2018: Human Gene Therapy
https://www.readbyqxmd.com/read/29338055/a-novel-gerstmann-str%C3%A3-ussler-scheinker-disease-mutation-defines-a-precursor-for-amyloidogenic-8-kda-prp-fragments-and-reveals-n-terminal-structural-changes-shared-by-other-gss-alleles
#4
Robert C C Mercer, Nathalie Daude, Lyudmyla Dorosh, Ze-Lin Fu, Charles E Mays, Hristina Gapeshina, Serene L Wohlgemuth, Claudia Y Acevedo-Morantes, Jing Yang, Neil R Cashman, Michael B Coulthart, Dawn M Pearson, Jeffrey T Joseph, Holger Wille, Jiri G Safar, Gerard H Jansen, Maria Stepanova, Brian D Sykes, David Westaway
To explore pathogenesis in a young Gerstmann-Sträussler-Scheinker Disease (GSS) patient, the corresponding mutation, an eight-residue duplication in the hydrophobic region (HR), was inserted into the wild type mouse PrP gene. Transgenic (Tg) mouse lines expressing this mutation (Tg.HRdup) developed spontaneous neurologic syndromes and brain extracts hastened disease in low-expressor Tg.HRdup mice, suggesting de novo formation of prions. While Tg.HRdup mice exhibited spongiform change, PrP aggregates and the anticipated GSS hallmark of a proteinase K (PK)-resistant 8 kDa fragment deriving from the center of PrP, the LGGLGGYV insertion also imparted alterations in PrP's unstructured N-terminus, resulting in a 16 kDa species following thermolysin exposure...
January 16, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29337305/host-expression-of-pd-l1-determines-efficacy-of-pd-l1-pathway-blockade-mediated-tumor-regression
#5
Heng Lin, Shuang Wei, Elaine M Hurt, Michael D Green, Lili Zhao, Linda Vatan, Wojciech Szeliga, Ronald Herbst, Paul W Harms, Leslie A Fecher, Pankaj Vats, Arul M Chinnaiyan, Christopher D Lao, Theodore S Lawrence, Max Wicha, Junzo Hamanishi, Masaki Mandai, Ilona Kryczek, Weiping Zou
Programmed death-1 receptor (PD-L1, B7-H1) and programmed cell death protein 1 (PD-1) pathway blockade is a promising therapy for treating cancer. However, the mechanistic contribution of host and tumor PD-L1 and PD-1 signaling to the therapeutic efficacy of PD-L1 and PD-1 blockade remains elusive. Here, we evaluated 3 tumor-bearing mouse models that differ in their sensitivity to PD-L1 blockade and demonstrated a loss of therapeutic efficacy of PD-L1 blockade in immunodeficient mice and in PD-L1- and PD-1-deficient mice...
January 16, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29334555/multi-institutional-analysis-of-recurrence-and-survival-after-neoadjuvant-chemoradiotherapy-of-esophageal-cancer-impact-of-histology-on-recurrence-patterns-and-outcomes
#6
Mian Xi, Yadi Yang, Li Zhang, Hong Yang, Kenneth W Merrell, Christopher L Hallemeier, Robert K Shen, Michael G Haddock, Wayne L Hofstetter, Dipen M Maru, Linus Ho, Carol C Wu, Mengzhong Liu, Steven H Lin
OBJECTIVE: To determine the impact of histology on pathologic response, survival outcomes, and recurrence patterns in patients with esophageal cancer (EC) who received neoadjuvant chemoradiotherapy (CRT). SUMMARY OF BACKGROUND DATA: There is a paucity of data regarding comparative outcomes after neoadjuvant CRT between esophageal squamous cell carcinoma (SCC) and adenocarcinoma. METHODS: Between 2002 and 2015, 895 EC patients who underwent neoadjuvant CRT followed by esophagectomy at 3 academic institutions were retrospectively reviewed, including 207 patients with SCC (23...
January 12, 2018: Annals of Surgery
https://www.readbyqxmd.com/read/29334395/probing-the-geometry-of-copper-and-silver-adatoms-on-magnetite-quantitative-experiment-versus-theory
#7
Matthias Meier, Zdeněk Jakub, Jan Balajka, Jan Hulva, Roland Bliem, Pardeep K Thakur, Tien-Lin Lee, Cesare Franchini, Michael Schmid, Ulrike Diebold, Francesco Allegretti, David A Duncan, Gareth S Parkinson
Accurately modelling the structure of a catalyst is a fundamental prerequisite for correctly predicting reaction pathways, but a lack of clear experimental benchmarks makes it difficult to determine the optimal theoretical approach. Here, we utilize the normal incidence X-ray standing wave (NIXSW) technique to precisely determine the three dimensional geometry of Ag1 and Cu1 adatoms on Fe3O4(001). Both adatoms occupy bulk-continuation cation sites, but with a markedly different height above the surface (0.43 ± 0...
January 15, 2018: Nanoscale
https://www.readbyqxmd.com/read/29332137/variation-in-guideline-concordant-care-for-elderly-patients-with-metastatic-breast-cancer-in-the-united-states
#8
Philip D Poorvu, Ines Vaz-Luis, Rachel A Freedman, Nancy U Lin, William T Barry, Eric P Winer, Michael J Hassett
PURPOSE: Prior studies have identified shortcomings in the quality of care for early-stage breast cancer. Guidelines recommend systemic therapy for metastatic breast cancer (MBC), but few studies have examined guideline concordance for these patients. METHODS: We used Surveillance, Epidemiology, and End Results (SEER)-Medicare data to identify patients aged ≥ 66 diagnosed in 2010-2011 with de novo MBC who were continuously enrolled in fee-for-service Medicare...
January 13, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29326167/the-protein-kinase-ck2-substrate-jabba-modulates-lipid-metabolism-during-drosophila-oogenesis
#9
Emily A McMillan, Sheila M Longo, Michael D Smith, Sarah Broskin, Baicheng Lin, Nisha K Singh, Todd I Strochlic
Lipid metabolism plays a critical role in female reproduction. During oogenesis, maturing oocytes accumulate high levels of neutral lipids that are essential for both energy production and for the synthesis of other lipid molecules. Metabolic pathways within the ovary are partially regulated by protein kinases that link metabolic status to oocyte development. While the functions of several kinases in this process are well established, the roles that many other kinases play in coordinating metabolic state with female germ cell development are unknown...
January 11, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29323119/cug-initiation-and-frameshifting-enable-production-of-dipeptide-repeat-proteins-from-als-ftd-c9orf72-transcripts
#10
Ricardos Tabet, Laure Schaeffer, Fernande Freyermuth, Melanie Jambeau, Michael Workman, Chao-Zong Lee, Chun-Chia Lin, Jie Jiang, Karen Jansen-West, Hussein Abou-Hamdan, Laurent Désaubry, Tania Gendron, Leonard Petrucelli, Franck Martin, Clotilde Lagier-Tourenne
Expansion of G4C2 repeats in the C9ORF72 gene is the most prevalent inherited form of amyotrophic lateral sclerosis and frontotemporal dementia. Expanded transcripts undergo repeat-associated non-AUG (RAN) translation producing dipeptide repeat proteins from all reading frames. We determined cis-factors and trans-factors influencing translation of the human C9ORF72 transcripts. G4C2 translation operates through a 5'-3' cap-dependent scanning mechanism, requiring a CUG codon located upstream of the repeats and an initiator Met-tRNAMeti...
January 11, 2018: Nature Communications
https://www.readbyqxmd.com/read/29322944/evidence-for-nodal-superconductivity-in-a-layered-compound-ta4pd3te16
#11
Guiming Pang, Michael Smidman, Wenhe Jiao, Lin Jiao, Zongfa Weng, Wenbing Jiang, Chunyu Guo, Ye Chen, Guanghan Cao, Huiqiu Yuan
We report an investigation of the London penetration depth [Formula: see text] on single crystals of the layered superconductor Ta4Pd3Te16, where the crystal structure has quasi-one-dimensional characteristics. A linear temperature dependence of [Formula: see text] is observed for [Formula: see text], in contrast to the exponential behavior of fully gapped superconductors. This indicates the existence of line nodes in the superconducting energy gap. A detailed analysis shows that the normalized superfluid density [Formula: see text], which is converted from [Formula: see text], can be well described by a multigap scenario, with nodes in one of the superconducting gaps, providing clear evidence for nodal superconductivity in Ta4Pd3Te16...
January 11, 2018: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/29322833/primary-genitourinary-lymphoma-on-fdg-pet
#12
Nikita Naik, Michael Lin, Peter Lin
Primary extra nodal lymphomatous involvement of the genitourinary tract is rare and secondary extra-nodal involvement in disseminated disease occurs more frequently. Imaging of metabolic activity with 2-[fluorine-18] fluoro-2-deoxy-d-glucose (FDG) used in positron emission tomography (PET) facilitates the identification of these extra-nodal sites of disease, particularly in the absence of structural lesions on conventional imaging modalities. Primary extra-nodal lymphoma affecting the genitourinary system is often caused by high-grade Non-Hodgkin's Lymphoma (NHL) with the most common subtype being Diffuse Large B-Cell Lymphoma (DLBCL)...
January 11, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29321137/novel-function-of-ceramide-for-regulation-of-mitochondrial-atp-release-in-astrocytes
#13
Ji-Na Kong, Zhihui Zhu, Yutaka Itokazu, Guanghu Wang, Michael B Dinkins, Liansheng Zhong, Hsuan-Pei Lin, Ahmed Elsherbini, Silvia Leanhart, Xue Jiang, Haiyan Qin, Wenbo Zhi, Stefka D Spassieva, Erhard Bieberich
We reported that amyloid beta peptide (Abeta42) activated neutral sphingomyelinase 2 (nSMase2) thereby increasing the concentration of the sphingolipid ceramide in astrocytes. Here, we show that Abeta42 induced mitochondrial fragmentation in wild type astrocytes, but not in nSMase2-deficient cells or astrocytes treated with Fumonisin B1 (FB1), an inhibitor of ceramide synthases. Unexpectedly, ceramide depletion was concurrent with rapid movements of mitochondria, indicating an unknown function of ceramide for mitochondria...
January 10, 2018: Journal of Lipid Research
https://www.readbyqxmd.com/read/29318683/prospective-surveillance-pilot-of-rivaroxaban-safety-within-the-us-food-and-drug-administration-sentinel-system
#14
Elizabeth A Chrischilles, Joshua J Gagne, Bruce Fireman, Jennifer Nelson, Sengwee Toh, Azadeh Shoaibi, Marsha E Reichman, Shirley Wang, Michael Nguyen, Rongmei Zhang, Rima Izem, Margie R Goulding, Mary Ross Southworth, David J Graham, Candace Fuller, Hannah Katcoff, Tiffany Woodworth, Catherine Rogers, Ryan Saliga, Nancy D Lin, Cheryl N McMahill-Walraven, Vinit P Nair, Kevin Haynes, Ryan M Carnahan
PURPOSE: The US Food and Drug Administration's Sentinel system developed tools for sequential surveillance. METHODS: In patients with non-valvular atrial fibrillation, we sequentially compared outcomes for new users of rivaroxaban versus warfarin, employing propensity score matching and Cox regression. A total of 36 173 rivaroxaban and 79 520 warfarin initiators were variable-ratio matched within 2 monitoring periods. RESULTS: Statistically significant signals were observed for ischemic stroke (IS) (first period) and intracranial hemorrhage (ICH) (second period) favoring rivaroxaban, and gastrointestinal bleeding (GIB) (second period) favoring warfarin...
January 10, 2018: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/29317744/a-role-for-divalent-metal-transporter-dmt1-in-mitochondrial-uptake-of-iron-and-manganese
#15
Natascha A Wolff, Michael D Garrick, Lin Zhao, Laura M Garrick, Andrew J Ghio, Frank Thévenod
Much of iron and manganese metabolism occurs in mitochondria. Uptake of redox-active iron must be tightly controlled, but little is known about how metal ions enter mitochondria. Recently, we established that the divalent metal transporter 1 (DMT1) is present in the outer mitochondrial membrane (OMM). Therefore we asked if it mediates Fe2+ and Mn2+ influx. Mitochondria were isolated from HEK293 cells permanently transfected with inducible rat DMT1 isoform 1 A/+IRE (HEK293-rDMT1). Fe2+-induced quenching of the dye PhenGreen™SK (PGSK) occurred in two phases, one of which reflected OMM DMT1 with stronger Fe2+ uptake after DMT1 overexpression...
January 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29317455/improving-temporal-trends-in-survival-and-neurological-outcomes-after-out-of-hospital-cardiac-arrest
#16
Jason E Buick, Ian R Drennan, Damon C Scales, Steven C Brooks, Adams Byers, Sheldon Cheskes, Katie N Dainty, Michael Feldman, P Richard Verbeek, Cathy Zhan, Alex Kiss, Laurie J Morrison, Steve Lin
BACKGROUND: Considerable effort has gone into improving outcomes from out-of-hospital cardiac arrest (OHCA). Studies suggest that survival is improving; however, prior studies had insufficient data to pursue the relationship between markers of guideline compliance and temporal trends. The objective of the study was to evaluate trends in OHCA survival over an 8-year period that included the implementation of the 2005 and 2010 international cardiopulmonary resuscitation (CPR) guidelines...
January 2018: Circulation. Cardiovascular Quality and Outcomes
https://www.readbyqxmd.com/read/29313691/metal-free-one-pot-synthesis-of-3-phosphinoylbenzofurans-via-phospha-michael-addition-cyclization-of-h-phosphine-oxides-and-in-situ-generated-ortho-quinone-methides
#17
Ji-Yuan Du, Yan-Hua Ma, Rui-Qing Yuan, Nana Xin, Shao-Zhen Nie, Chun-Lin Ma, Chen-Zhong Li, Chang-Qiu Zhao
A novel metal-free one-pot protocol for the effective and efficient synthesis of 3-phosphinoylbenzofurans via a phospha-Michael addition/cyclization of H-phosphine oxides and in situ generated ortho-quinone methides is described. Based on the expeditious construction of C(sp2)-P bonds, asymmetric synthesis of optically pure 3-phosphinoylbenzofurans containing chiral P-stereogenic center has also been probed by using chiral RP-(-)-menthyl phenylphosphine oxide.
January 9, 2018: Organic Letters
https://www.readbyqxmd.com/read/29306537/metformin-enhances-the-differentiation-of-dental-pulp-cells-into-odontoblasts-by-activating-ampk-signaling
#18
Wei Qin, Xianling Gao, Tao Ma, Michael D Weir, Jing Zou, Bing Song, Zhengmei Lin, Abraham Schneider, Hockin H K Xu
INTRODUCTION: Metformin is a first-line drug for treating type 2 diabetes that regulates the differentiation of mesenchymal stem cells. Its effects on human dental pulp cells (DPCs) remain unknown. This study aimed to investigate the effects of metformin on the proliferation and differentiation of DPCs. METHODS: A live/dead viability assay kit was used to examine the effects of metformin on the cell viability of DPCs. Cell proliferation was analyzed using a cell counting kit (CCK-8; Dojindo, Tokyo, Japan)...
January 3, 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/29306031/simultaneous-detection-of-dual-biomarkers-from-humans-exposed-to-organophosphorus-pesticides-by-combination-of-immunochromatographic-test-strip-and-ellman-assay
#19
Mingming Yang, Yuting Zhao, Limin Wang, Michael Paulsen, Christopher D Simpson, Fengquan Liu, Dan Du, Yuehe Lin
A novel sandwich immunoassay based immunochromatographic test strip (ICTS) has been developed for simultaneously measuring both butyrylcholinesterase (BChE) activity and the total amount of BChE (including inhibited and active enzyme) from 70 μLpost-exposure human plasma sample. The principle of this method is based on the BChE monoclonal antibody (MAb) capable of acting as both capture antibody and detection antibody. The BChE MAb which was immobilized on the test line was able to recognize both organophosphorus BChE adducts (OP-BChE) and BChE and provided equal binding affinity, permitting detection of the total enzyme amount in post-exposure human plasma samples...
December 21, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29304080/local-vs-systemic-administration-of-bisphosphonates-in-rat-cleft-bone-graft-a-comparative-study
#20
Christine Hong, Alison Quach, Lawrence Lin, Jeffrey Olson, Taewoo Kwon, Olga Bezouglaia, Jaime Tran, Michael Hoang, Kimberly Bui, Reuben H Kim, Sotirios Tetradis
A majority of patients with orofacial cleft deformity requires cleft repair through a bone graft. However, elevated amount of bone resorption and subsequent bone graft failure remains a significant clinical challenge. Bisphosphonates (BPs), a class of anti-resorptive drugs, may offer great promise in enhancing the clinical success of bone grafting. In this study, we compared the effects of systemic and local delivery of BPs in an intraoral bone graft model in rats. We randomly divided 34 female 20-week-old Fischer F344 Inbred rats into four groups to repair an intraoral critical-sized defect (CSD): (1) Control: CSD without graft (n = 4); (2) Graft/Saline: bone graft with systemic administration of saline 1 week post-operatively (n = 10); (3) Graft/Systemic: bone graft with systemic administration of zoledronic acid 1 week post-operatively (n = 10); and (4) Graft/Local: bone graft pre-treated with zoledronic acid (n = 10)...
2018: PloS One
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