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https://www.readbyqxmd.com/read/28109145/-short-term-use-of-rapamycin-combined-with-tregs-prolongs-mouse-cardiac-graft-survival-but-attenuates-recipient-s-anti-tumor-immunity
#1
Ting Yan, Chen Luo, Xianmo Yang, Lei Ji, Shiqiao Luo
Objective To study the effect of short-term use of rapamycin(Rap) combined with regulatory T cells (Tregs) on the long-time survival of allogeneic mouse cardiac transplant, and its impact on the anti-tumor immunity of recipient. MethodsMouse Tregs were purified from recipients' spleen by magnetic activated cell sorting (MACS), and expanded by CD3/CD28 monoclonal antibody immunomagnetic beads and 2000 U/mL recombinant mouse IL-2 (rmIL-2) ex vivo. The purity was tested by fluorescence-activated cell sorting (FACS)...
February 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28109026/refinement-of-the-criteria-for-ultrastructural-peritubular-capillary-basement-membrane-multilayering-in-the-diagnosis-of-chronic-active-acute-antibody-mediated-rejection
#2
Heounjeong Go, Sung Shin, Young Hoon Kim, Duck Jong Han, Yong Mee Cho
Chronic active/acute antibody-mediated rejection (cABMR) is the main cause of late renal allograft loss. Severe peritubular capillary basement membrane multilayering (PTCML) assessed on electron microscopy is one diagnostic feature of cABMR according to the Banff2013 classification. We aimed to refine the PTCML criteria for an earlier diagnosis of cABMR. We retrospectively investigated ultrastructural features of 159 consecutive renal allografts and 44 non-allografts. The presence of serum donor-specific antibodies at the time of biopsy of allografts was also examined...
January 21, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28109015/a-single-centre-experience-of-roux-en-y-enteric-drainage-for-pancreas-transplantation
#3
Irum Amin, Andrew J Butler, Gail Defries, Neil K Russell, Simon J F Harper, Asif Jah, Kourosh Saeb-Parsy, Gavin J Pettigrew, Christopher J E Watson
Exocrine drainage following pancreas transplantation can be achieved by drainage into the bladder or bowel, the latter typically by direct duodeno-jejunostomy; the use of Roux-en-Y enteric drainage is uncommon. We report a retrospective analysis of a single centre experience of Roux-en-Y enteric drainage following pancreas transplantation. Over a 14-year period (2001- 2015), 204 consecutive adult pancreas transplants were performed (96.6% simultaneous pancreas and kidney transplants), of which 26.0% were from donors after circulatory death (DCD)...
January 21, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28108956/post-implantation-fate-of-adipogenic-induced-mesenchymal-stem-cells-on-type-i-collagen-scaffold-in-a-rat-model
#4
Balu Venugopal, Francis B Fernandez, V S Harikrishnan, Annie John
Regenerative medicine via its application in soft tissue reconstruction through novel methods in adipose tissue engineering (ATE) has gained remarkable attention and investment despite simultaneous reports on clinical incidence of graft resorption and impaired vascularization. The underlying malaise here once identified may play a critical role in optimizing implant function. Our work attempts to determine the fate of donor cells and the implant in recipient micro environment using adipose-derived mesenchymal stem cells (ASCs) on a type I collagen sponge, an established scaffold for ATE...
February 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28108939/exploration-of-sar-for-novel-2-benzylbenzimidazole-analogs-as-inhibitor-of-transcription-factor-nf-%C3%AE%C2%BAb
#5
PullaReddy Boggu, Eeda Venkateswararao, Manoj Manickam, Youngsoo Kim, Sang-Hun Jung
A novel series of 2-benzylbenzimidazole analogs was designed, synthesized and investigated for their in vitro activities against LPS induced NF-κB inhibition in RAW 264.7 cells using the SEAP assay. Among them, 4-((4-(cyclohexylmethoxy)-1H-benzo[d]imidazol-2-yl)methyl)phenol (6e, >100% inhibition at 30 μM, IC50 = 3.0 μM), 4-((5-(cyclohexylmethoxy)-1H-benzo[d]imidazol-2-yl)methyl)phenol (6j, 96% inhibition at 30 μM, IC50 = 4.0 μM) and 2-((4-(cyclohexylmethoxy)-1H-benzo[d]imidazol-2-yl)methyl)phenol (6k, 95% inhibition at 30 μM, IC50 = 5...
January 20, 2017: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/28108896/pharmacophore-based-screening-and-drug-repurposing-exemplified-on-glycogen-synthase-kinase-3-inhibitors
#6
Luminita Crisan, Sorin Avram, Liliana Pacureanu
The current study was conducted to elaborate a novel pharmacophore model to accurately map selective glycogen synthase kinase-3 (GSK-3) inhibitors, and perform virtual screening and drug repurposing. Pharmacophore modeling was developed using PHASE on a data set of 203 maleimides. Two benchmarking validation data sets with focus on selectivity were assembled using ChEMBL and PubChem GSK-3 confirmatory assays. A drug repurposing experiment linking pharmacophore matching with drug information originating from multiple data sources was performed...
January 21, 2017: Molecular Diversity
https://www.readbyqxmd.com/read/28108866/donor-conception-and-passing-or-why-australian-parents-of-donor-conceived-children-want-donors-who-look-like-them
#7
Karen-Anne Wong
This article explores the processes through which Australian recipients select unknown donors for use in assisted reproductive technologies and speculates on how those processes may affect the future life of the donor-conceived person. I will suggest that trust is an integral part of the exchange between donors, recipients, and gamete agencies in donor conception and heavily informs concepts of relatedness, race, ethnicity, kinship, class, and visibility. The decision to be transparent (or not) about a child's genetic parentage affects recipient parents' choices of donor, about who is allowed to "know" children's genetic backgrounds, and how important it is to be able to "pass" as an unassisted conception...
January 20, 2017: Journal of Bioethical Inquiry
https://www.readbyqxmd.com/read/28108640/bonds-broken-and-formed-during-the-mixed-linkage-glucan-xyloglucan-endotransglucosylase-reaction-catalysed-by-equisetum-hetero-trans-%C3%AE-glucanase
#8
Thomas J Simmons, Stephen C Fry
Mixed-linkage glucan : xyloglucan endotransglucosylase (MXE) is one of the three activities of the recently characterised hetero-trans-β-glucanase (HTG), which among land-plants is known only from Equisetum species. The biochemical details of the MXE reaction were incompletely understood - details that would promote understanding of MXE's role in vivo and enable its full technological exploitation. We investigated HTG's site of attack on one of its donor substrates, mixed-linkage (1→3),(1→4)-β-D-glucan (MLG), with radioactive oligosaccharides of xyloglucan as acceptor substrate...
January 20, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28108471/prognostic-significance-of-residual-acute-myeloid-leukemia-in-bone-marrow-samples-taken-prior-to-allogeneic-hematopoietic-cell-transplantation
#9
Alexandra E Kovach, Andrew M Brunner, Amir T Fathi, Yi-Bin Chen, Robert P Hasserjian
OBJECTIVES: We sought to identify features in routine evaluation of pre-hematopoietic cell transplantation (HCT) bone marrow samples from patients with acute myeloid leukemia (AML) that influenced patient outcome. METHODS: Of 140 patients, evidence of residual leukemia (RL) was identified in 38 (27%) of pre-HCT samples, as defined by 5% or more aspirate blasts, increased blood blasts, clustered or necrotic blasts on biopsy specimens, and/or leukemia-associated karyotypic abnormalities...
January 20, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28108404/annulus-fibrosus-cells-express-and-utilize-c-c-chemokine-receptor-5-ccr5-for-migration
#10
Weijun Liu, David Liu, Justin Zheng, Peng Shi, Po-Hsin Chou, Chundo Oh, Di Chen, Howard S An, Ana Chee
BACKGROUND CONTEXT: Disc degeneration is associated with the progressive loss of the proteoglycan content of the intervertebral disc (IVD), decreased matrix synthesis, higher concentrations of proteolytic enzymes and increased levels of pro-inflammatory cytokines. In previous studies, we have shown that C-C chemokine ligand (CCL)2, CCL3, and CCL5 are highly expressed by cultured nucleus pulposus (NP) and annulus fibrosus (AF) cells that have been treated by interleukin (IL)-1. The major function for these chemokines is to recruit immune cells into the disc...
January 17, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28108378/the-pressure-induced-deformation-response-of-the-human-lamina-cribrosa-analysis-of-regional-variations
#11
Dan E Midgett, Mary E Pease, Joan L Jefferys, Mohak Patel, Christian Franck, Harry A Quigley, Thao D Nguyen
: The objective of this study was to measure the pressure-induced deformation response of the human lamina cribrosa (LC) and analyze for variations with age and anatomical region. The posterior scleral cup of 8 eyes from 6 human donors was mounted onto a custom inflation chamber. A laser-scanning microscope was used for second harmonic generation (SHG), imaging the collagen structure in the posterior volume of the LC at pressures from 5 mmHg to 45 mmHg. The SHG volumes were analyzed by the Fast-Fourier Iterative Digital Volume Correlation (DVC) algorithm for the three dimensional (3D) displacement field...
January 17, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28108357/sigma-1-receptor-deficiency-reduces-gabaergic-inhibition-in-the-basolateral-amygdala-leading-to-ltd-impairment-and-depressive-like-behaviors
#12
Baofeng Zhang, Ling Wang, Tingting Chen, Juan Hong, Sha Sha, Jun Wang, Hang Xiao, Ling Chen
Sigma-1 receptor knockout (σ1R-/-) in male mice causes depressive-like phenotype. We observed the expression of σ1R in principal neurons of basolateral amygdala (BLA), a main region for affective regulation. The present study investigated the influence of σ1R deficiency in BLA neurons on synaptic properties and plasticity at cortico-BLA pathway. In comparison with wild-type (WT) mice, the slopes of field excitatory postsynaptic potentials (fEPSP) were reduced in σ1R-/- mice with the increases in paired-pulse facilitation (PPF) and paired-pulse inhibition (PPI) values...
January 17, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28108276/hydrogen-sulfide-reduces-rage-toxicity-through-inhibition-of-its-dimer-formation
#13
Hong Zhou, Lei Ding, Zhiyuan Wu, Xu Cao, Qichun Zhang, Li Lin, Jin-Song Bian
RAGE is important in the development of neurodegenerative diseases. The present study was designed to investigate the effect of hydrogen sulfide (H2S, an endogenous gaseous mediator) on the cytotoxicity caused by RAGE activation during the chronic oxidative stress. Aβ1-42 decreased cell viability and induced cell senescence in SH-SY5Y cells. Treatment with advanced glycation end products (AGEs) induced cell injury in HEK293 cells stably expressing RAGE (HEK293-RAGE) and stimulated inflammatory responses in SH-SY5Y cells...
January 17, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28108270/hla-haploidentical-transplantation-for-relapsed-refractory-hodgkin-lymphoma-a-multicentre-analysis
#14
Marcelo Pitombeira de Lacerda, Celso Arrais Rodrigues, André Domingues Pereira, Yana Novis, Marina Fonseca, Roberto L Silva, Maria C M A Macedo, Nelson Hamerschlak, Iracema Esteves, Jayr Schmidt Filho, Marina M Nascimento, Vanderson Rocha
Reduced-intensity conditioning, allogeneic stem cell transplantation remains a potentially curative approach for relapsed/refractory Hodgkin Lymphoma (HL) relapsing after an autologous SCT. In the absence of a HLA-identical donor, haploidentical SCT (haplo-SCT) with posttransplant cyclophosphamide (PT-Cy) has been evaluated with favorable preliminary results. We evaluated 24 patients who underwent a haplo-SCT for relapsed/refractory HL. Conditioning regimen consisted of cyclophosphamide, fludarabine and TBI, and GVHD prophylaxis consisted of a calcineurin inhibitor, mycophenolate mofetil and PT-Cy (50mg/kg/day for 2 days) for all patients...
January 17, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28108262/deceased-organ-donor-management-does-hospital-volume-matter
#15
Madhukar S Patel, Jahan Mohebali, Mitchell Sally, Tahnee Groat, Parsia A Vagefi, David C Chang, Darren J Malinoski
BACKGROUND: Identification of strategies to improve organ donor utilization remains imperative. Despite the association between hospital volume and outcomes for many common disease processes, there have been no studies to assess the impact of organ donor hospital volume on organ yield. STUDY DESIGN: A prospective observational study of all deceased organ donors managed by ten OPOs across UNOS Regions 4, 5, and 6 was conducted from February 2012-June 2015. In order to study the impact of hospital volume on organ yield, each donor was placed into a hospital volume quartile based on the number of donors managed by their hospital...
December 16, 2016: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28108241/levator-alae-nasi-muscle-v-y-island-flap-for-nasal-tip-reconstruction
#16
Simone La Padula, Vincenzo Abbate, Gianluca Di Monta, Fabrizio Schonauer
Nasal tip reconstruction can be very challenging. It requires close attention to skin texture, colour and thickness matching, with the respect of the nasal aesthetic units and symmetry. Flaps are usually preferred to skin grafts where possible. Based on different donor areas, various flaps have been described for reconstruction of this region. Here we present a new V-Y myocutaneous island flap based on the levator alae nasi muscle (LAN muscle) blood supply. This flap may represent an alternative to the nasalis myocutaneous sliding V-Y flap previously described by Rybka...
December 21, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28108168/joint-refinement-of-fret-measurements-using-spectroscopic-and-computational-tools
#17
Alexander Kyrychenko, Mykola V Rodnin, Chiranjib Ghatak, Alexey S Ladokhin
The variability of the orientation factor is a long-standing challenge in converting FRET efficiency measurements into donor-acceptor distances. We propose the use of molecular dynamics (MD) simulations to characterize orientation distributions and thus improve the accuracy of distance measurements. Here, we test this approach by comparing experimental and simulated FRET efficiencies for a model donor-acceptor pair of enhanced cyan and enhanced yellow FPs connected by a flexible linker. Several spectroscopic techniques were used to characterize FRET in solution...
January 17, 2017: Analytical Biochemistry
https://www.readbyqxmd.com/read/28108115/a-reappraisal-of-the-surgical-planning-of-the-superficial-circumflex-iliac-artery-perforator-flap
#18
Shaoqing Feng, Wenjing Xi, Zheng Zhang, Mathias Tremp, Dirk J Schaefer, Parviz L Sadigh, Wenjie Zhang, Yi Xin Zhang
OBJECTIVE: The popularity of the superficial circumflex iliac artery perforator (SCIP) flap has been limited by factors such as variable vascular anatomy and short arterial pedicle. This article aimed to delineate flap design and harvest strategies based around either the proximal or distal perforators of the superficial circumflex iliac artery (SCIA) and propose a set of strategies that can help deal with the limitations of the flap. METHOD: From August 2011 to June 2015, the SCIP flap was used in 80 patients for soft tissue defects at our institution...
December 22, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28107998/multiplex-and-accurate-quantification-of-acute-kidney-injury-biomarker-candidates-in-urine-using-protein-standard-absolute-quantification-psaq-and-targeted-proteomics
#19
Benoît Gilquin, Mathilde Louwagie, Michel Jaquinod, Alexandre Cez, Guillaume Picard, Leila El Kholy, Brigitte Surin, Jérôme Garin, Myriam Ferro, Thomas Kofman, Caroline Barau, Emmanuelle Plaisier, Pierre Ronco, Virginie Brun
There is a need for multiplex, specific and quantitative methods to speed-up the development of acute kidney injury biomarkers and allow a more specific diagnosis. Targeted proteomic analysis combined with stable isotope dilution has recently emerged as a powerful option for the parallelized evaluation of candidate biomarkers. This article presents the development of a targeted proteomic assay to quantify 4 acute kidney injury biomarker candidates in urine samples. The proteins included in the assessed panel consisted of myo-inositol oxygenase (MIOX), phosphoenolpyruvate carboxykinase 1 (PCK1), neutrophil gelatinase-associated lipocalin (NGAL) and liver fatty acid-binding protein (L-FABP)...
March 1, 2017: Talanta
https://www.readbyqxmd.com/read/28107978/fret-based-nanobiosensor-for-detection-of-scopolamine-in-hairy-root-extraction-of-atropa-belladonna
#20
Fereshte Bagheri, Khosro Piri, Afshine Mohsenifar, Smaiil Ghaderi
A simple, sensitive, selective, and rapid optical nanobiosensor based on FRET was designed to detect tropane alkaloids as anti-cholinergic agents in natural and transgenic hairy roots extracts of Atropa belladonna. To achieve that, conjugation of tioglycolyic acid capped cadmium telluride quantum Dots, M2 muscarinic receptor (Cd/Te QDs-M2R) and conjugation of scopolamine-rhodamine123 (Sc-Rho123) were performed. More specifically, proportional amounts of M2 muscarinic receptor and quantum dots (QDs) were conjugated while scopolamine (as a tropane alkaloid) and rhodamine123 were also combined and these moieties functioned as donor and acceptor pairs, respectively...
March 1, 2017: Talanta
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