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https://www.readbyqxmd.com/read/28229376/the-pharmacogenetics-of-tacrolimus-in-corticosteroid-sparse-pediatric-and-adult-kidney-transplant-recipients
#1
Mads Juul Madsen, Troels K Bergmann, Kim Brøsen, Helle Charlotte Thiesson
INTRODUCTION: Tacrolimus is a calcineurin inhibitor used as an immunosuppressant drug in solid organ transplantation, and is mainly metabolized by cytochrome P450 (CYP) 3A4 and CYP3A5. Studies have shown an association between the CYP3A5 genotype and tacrolimus dose-adjusted trough concentrations. Variants in the genes PPARA, POR and CYP3A4 have recently been shown to influence tacrolimus metabolism. Furthermore, pharmacokinetic interaction between corticosteroid treatment and tacrolimus has been shown...
February 22, 2017: Drugs in R&D
https://www.readbyqxmd.com/read/28224772/effects-of-neutralization-by-soluble-abh-antigens-produced-by-transplanted-kidneys-from-abo-incompatible-secretor-donors
#2
Jieun Kim, Sinyoung Kim, In Sik Hwang, Jong Rak Choi, Jae Geun Lee, Yu Seun Kim, Myoung Soo Kim, Hyun Ok Kim
BACKGROUND: Grafts survive despite blood group antigens on the transplant being continuously exposed to antibodies in the blood of recipients in ABO-incompatible kidney transplantation (ABOi KT), owing to the mechanism of accommodation. We analyzed the immunodynamics of soluble ABH antigens in allografts from secretor donors and the influence of such immunodynamics on accommodation and subsequent graft survival in ABOi KT. METHODS: The genotype of a known human β-galactoside α-1,2-fucosyltransferase gene (FUT2), which determines soluble ABH antigen secretor status, was established in 32 donors for ABOi KT at the Severance Hospital, from June 2010 to July 2015...
May 2017: Annals of Laboratory Medicine
https://www.readbyqxmd.com/read/28223052/lung-transplant-mortality-is-improving-in-recipients-with-a-lung-allocation-score-in-the-upper-quartile
#3
Todd C Crawford, Joshua C Grimm, J Trent Magruder, Jinny Ha, Christopher M Sciortino, Bo S Kim, Errol L Bush, John V Conte, Robert S Higgins, Ashish S Shah, Christian A Merlo
BACKGROUND: Since the introduction of the Lung Allocation Score (LAS), the mean LAS has risen. Still, it remains uncertain whether mortality has improved in the most severely ill lung transplant recipients over this time period. METHODS: Using the United Network for Organ Sharing database, we identified 3,548 adult lung transplant recipients from May 4, 2005, to March 31, 2014, with a match-time LAS in the upper quartile (>75th%ile). We divided this population across three eras: 1 = May 4, 2005, to December 31, 2008 (n = 1,280); 2 = January 1, 2009, to December 31, 2011 (n = 1,266); and 3 = January 1, 2012, to March 31, 2014 (n = 1,002)...
February 18, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28215880/adenovirus-vector-mediated-ex-vivo-gene-transfer-of-brain-derived-neurotrophic-factor-bdnf-tohuman-umbilical-cord-blood-derived-mesenchymal-stem-cells-ucb-mscs-promotescrush-injured-rat-sciatic-nerve-regeneration
#4
Wei-Hong Hei, Akram A Almansoori, Mi-Ae Sung, Kyung-Won Ju, Nari Seo, Sung-Ho Lee, Bong-Ju Kim, Soung-Min Kim, Jeong Won Jahng, Hong He, Jong-Ho Lee
This study was designed toinvestigate the efficacy of adenovirus vector-mediated brain-derived neurotrophic factor (BDNF)ex vivo gene transfer to human umbilical cord blood-derived mesenchymal stem cells(UCB-MSCs) in a rat sciatic nerve crush injury model. BDNF protein and mRNA expression after infection was checked through an enzyme-linked immunosorbent assay (ELISA) and quantitative real-time polymerase chain reaction (qRT-PCR). Male Sprague-Dawley rats (200-250g, 6 weeks old) were distributed into threegroups (n=20 each): the control group, UCB-MSC group, and BDNF-adenovirus infected UCB-MSC (BDNF-Ad+UCB-MSC) group...
February 12, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28214341/angiopoietin-2-enhances-osteogenic-differentiation-of-bone-marrow-stem-cells
#5
Mi-Lan Kang, Eun-Ah Kim, Se-Young Jeong, Gun-Il Im
Our previous studies revealed that co-transplantation of bone marrow stem cells (BMSCs) and adipose-derived stem cells (ADSCs) can enhance bone regeneration and angiogenesis. However, it is unclear which genes are involved in the regulation of osteogenesis and/or angiogenesis during the co-culturing of BMSCs and ADSCs. The expression patterns of genes associated with osteogenesis and/or angiogenesis were analyzed in osteogenesis-induced BMSCs and ADSCs using an oligonucleotide microarray. Significant difference in the expression patterns of several genes were identified from hierarchical clustering and analyzed on co-cultured BMSCs and ADSCs...
February 18, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28209525/stromal-vascular-fraction-shows-robust-wound-healing-through-high-chemotactic-and-epithelialization-property
#6
Dong-Sic Chae, Seongho Han, Mina Son, Sung-Whan Kim
BACKGROUND: Although human stromal vascular fraction (SVF) has been regarded as an attractive stem cell source, its therapeutic mechanism in wound healing has not been fully elucidated. AIMS: In this study, we investigated the molecular characteristics and therapeutic property of SVF for wound healing. METHODS: Microarray data showed that SVF cells are enriched with a higher level of wound healing or epithelium development-related genes and micro RNA...
February 13, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28208014/improved-antitumor-efficacy-of-hyaluronic-acid-complexed-paclitaxel-nanoemulsions-in-treating-non-small-cell-lung-cancer
#7
Joo-Eun Kim, Young-Joon Park
Paclitaxel (PTX) is a effectively chemotherapeutic agent which is extensively able to treat the non-small cell lung, pancreatic, breast and other cancers. But it is a practically insoluble drug with water solubility less than 1 µg/mL, which restricts its therapeutic application. To overcome the problem, hyaluronic acid-complexed paclitaxel nanoemulsions (HPNs) were prepared by ionic complexation of paclitaxel (PTX) nanoemulsions and hyaluronic acid (HA) to specifically target non-small cell lung cancer. HPNs were composed of DL-α-tocopheryl acetate, soybean oil, polysorbate 80, ferric chloride, and HA and fabricated by high-pressure homogenization...
February 17, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28207634/ethnic-background-is-a-potential-barrier-to-living-donor-kidney-transplantation-in-canada-a-single-center-retrospective-cohort-study
#8
Istvan Mucsi, Aarushi Bansal, Olusegun Famure, Yanhong Li, Margot Mitchell, Amy D Waterman, Marta Novak, S Joseph Kim
BACKGROUND: We examined if African or Asian ethnicity was associated with lower access to kidney transplantation (KT) in a Canadian setting. METHODS: Patients referred for KT to the Toronto General Hospital from January 1, 2003 to December 31, 2012, who completed social work assessment, were included (n=1769). The association between ethnicity and the time from referral to completion of KT evaluation or receipt of a KT were examined using Cox proportional hazards models...
February 15, 2017: Transplantation
https://www.readbyqxmd.com/read/28195232/hematopoietic-pannexin-1-function-is-critical-for-neuropathic-pain
#9
Janelle L Weaver, Sanja Arandjelovic, Gregory Brown, Suresh K Mendu, Michael S Schappe, Monica W Buckley, Yu-Hsin Chiu, Shaofang Shu, Jin K Kim, Joyce Chung, Julia Krupa, Vesna Jevtovic-Todorovic, Bimal N Desai, Kodi S Ravichandran, Douglas A Bayliss
Neuropathic pain symptoms respond poorly to available therapeutics, with most treated patients reporting unrelieved pain and significant impairment in daily life. Here, we show that Pannexin 1 (Panx1) in hematopoietic cells is required for pain-like responses following nerve injury in mice, and a potential therapeutic target. Panx1 knockout mice (Panx1(-/-)) were protected from hypersensitivity in two sciatic nerve injury models. Bone marrow transplantation studies show that expression of functional Panx1 in hematopoietic cells is necessary for mechanical hypersensitivity following nerve injury...
February 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28192115/substance-p-enhances-proliferation-and-paracrine-potential-of-adipose-derived-stem-cells-in%C3%A2-vitro
#10
Suna Kim, Jiyuan Piao, Youngsook Son, Hyun Sook Hong
Stem cells have tremendous promise to treat intractable diseases. Notably, adipose-derived stem cells (ADSCs) are actively being investigated because of ease of sampling and high repopulation capacity in vitro. ADSCs can exert a therapeutic effect through differentiation and paracrine potential, and these actions have been proven in many diseases, including cutaneous and inflammatory diseases. Transplantation of ADSCs necessitates therapeutic quantities and thus, long term ex vivo culture of ADSCs. However, this procedure can impair the activity of ADSCs and provoke cellular senescence, leading to low efficacy in vivo...
February 10, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28192074/practical-informativeness-of-short-tandem-repeat-loci-for-chimerism-analysis-in-hematopoietic-stem-cell-transplantation
#11
Eunhee Han, Myungshin Kim, Yonggoo Kim, Kyungja Han, Jihyang Lim, Dain Kang, Gun Dong Lee, Jung Rok Kim, Jae-Wook Lee, Nack-Gyun Chung, Bin Cho, Ki-Seong Eom, Yoo-Jin Kim, Hee-Je Kim, Seok Lee, Seok-Goo Cho, Chang-Ki Min, Dong-Wook Kim, JongWook Lee, Woo-Sung Min
OBJECTIVE: Short tandem repeat (STR) loci are most frequently used for chimerism analysis after hematopoietic stem cell transplantation (HSCT). The aim of this study was to evaluate the practical informativeness of STR chimerism by integrating theoretical and analytical points. METHODS: Theoretical and practical informativess of 16 STR loci were evaluated from 1249 pairs of recipients and donors who were prepared for HSCT. RESULTS: Theoretical informativeness was influenced by genetic diversity including allele frequency and heterozygosity, and was higher in the unrelated HSCT group (90...
February 10, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28190546/sevoflurane-attenuates-ischemia-reperfusion-injury-in-a%C3%A2-rat%C3%A2-lung%C3%A2-transplantation-model
#12
Akihiro Ohsumi, Katherine Marseu, Peter Slinger, Karen McRae, Hyunhee Kim, Zehong Guan, David M Hwang, Mingyao Liu, Shaf Keshavjee, Marcelo Cypel
BACKGROUND: Sevoflurane is one of the most commonly used volatile anesthetic agents with the fastest onset and offset, replacing isoflurane in modern anesthesiology. Preconditioning and postconditioning using volatile anesthetics can attenuate ischemia-reperfusion injury (IRI). However, no previous studies have evaluated the effect of sevoflurane in lung transplantation after cold ischemic injury. We aimed to study the effects of donor and recipient treatment with sevoflurane in a rat lung transplantation model...
February 9, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28188133/pd1-blockade-with-pembrolizumab-is-highly-effective-in-relapsed-or-refractory-nk-t-cell-lymphoma-failing-l-asparaginase
#13
Yok-Lam Kwong, Thomas S Y Chan, Daryl Tan, Seok Jin Kim, Li-Mei Poon, Benjamin Mow, Pek-Lan Khong, Florence Loong, Rex Au-Yeung, Jabed Iqbal, Colin Phipps, Eric Tse
Natural killer (NK)/T-cell lymphomas failing L-asparaginse-regimens have no known salvage and are almost invariably fatal. Seven male NK/T-cell lymphoma patients (age: 49, 31-68, years) failing 2 (1-5) regimens (including L-asparaginase-regimens, and allogeneic hematopoietic stem cell transplantation, HSCT, in 2 cases), were treated with the anti-programmed-death-1 (PD1) antibody pembrolizumab. All patients responded, according to various clinical, radiologic (positron emission tomography), morphologic and molecular (circulating Epstein-Barr virus, EBV, DNA) criteria...
February 10, 2017: Blood
https://www.readbyqxmd.com/read/28187503/beneficial-and-harmful-effects-of-non-selective-beta-blockade-on-acute-kidney-injury-in-liver-transplant-candidates
#14
Sang Gyune Kim, Joseph J Larson, Ji Sung Lee, Therneau M Terry, W Ray Kim
Non-selective beta-blockers have played an important role in the prevention of portal hypertensive bleeding in cirrhotic patients. However, recent studies have suggested that non-selective beta-blockers may be harmful in some patients with end-stage liver disease. To evaluate the association between use of non-selective beta-blocker and the incidence of acute kidney injury (AKI). We conducted a nested case-control study in a cohort of liver transplant waitlist registrants. Each patient with AKI was matched to a control by the model for end-stage liver disease (MELD)-Na score, age, serum creatinine, and follow-up duration...
February 10, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28180097/interhospital-transport-system-for-critically-ill-patients-mobile-extracorporeal-membrane-oxygenation-without-a-ventilator
#15
Hye Ju Yeo, Woo Hyun Cho, Jong Myung Park, Dohyung Kim
BACKGROUND: Extracorporeal membrane oxygenation (ECMO) has been successfully used as a method for the interhospital transportation of critically ill patients. In South Korea, a well-established ECMO interhospital transport system is lacking due to limited resources. We developed a simplified ECMO transport system without mechanical ventilation for use by public emergency medical services. METHODS: Eighteen patients utilized our ECMO transport system from December 2011 to September 2015...
February 2017: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28179030/survival-in-infants-treated-with-sebelipase-alfa-for-lysosomal-acid-lipase-deficiency-an-open-label-multicenter-dose-escalation-study
#16
Simon A Jones, Sandra Rojas-Caro, Anthony G Quinn, Mark Friedman, Sachin Marulkar, Fatih Ezgu, Osama Zaki, J Jay Gargus, Joanne Hughes, Dominique Plantaz, Roshni Vara, Stephen Eckert, Jean-Baptiste Arnoux, Anais Brassier, Kim-Hanh Le Quan Sang, Vassili Valayannopoulos
BACKGROUND: Infants presenting with lysosomal acid lipase deficiency have marked failure to thrive, diarrhea, massive hepatosplenomegaly, anemia, rapidly progressive liver disease, and death typically in the first 6 months of life; the only available potential treatment has been hematopoietic stem cell transplantation, which is associated with high morbidity and mortality in this population. The study objective was to evaluate safety and efficacy (including survival) of enzyme replacement with sebelipase alfa in infants with lysosomal acid lipase deficiency...
February 8, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28178341/enhanced-expression-of-two-discrete-isoforms-of-matrix-metalloproteinase-2-in-experimental-and-human-diabetic-nephropathy
#17
Sang Soo Kim, Nari Shin, Sun Sik Bae, Min Young Lee, Harin Rhee, Il Young Kim, Eun Young Seong, Dong Won Lee, Soo Bong Lee, Ihm Soo Kwak, David H Lovett, Sang Heon Song
BACKGROUND: We recently reported on the enhanced expression of two isoforms of matrix metalloproteinase-2 (MMP-2) in human renal transplantation delayed graft function. These consist of the conventional secreted, full length MMP-2 isoform (FL-MMP-2) and a novel intracellular N-Terminal Truncated isoform (NTT-MMP-2) generated by oxidative stress-mediated activation of an alternate promoter in the MMP-2 first intron. Here we evaluated the effect of hyperglycemia and diabetes mellitus on the in vitro and in vivo expression of the two MMP-2 isoforms...
2017: PloS One
https://www.readbyqxmd.com/read/28168387/effective-laparoscopic-management-lymph-node-dissection-for-gallbladder-cancer
#18
Eduardo A Vega, Suguru Yamashita, Yun Shin Chun, Michael Kim, Jason B Fleming, Matthew H Katz, Ching-Wei Tzeng, Kanwal P Raghav, Jean-Nicolas Vauthey, Jeffrey E Lee, Claudius Conrad
BACKGROUND: Part of optimal prognostication of gallbladder cancer is optimal lymph node staging. (1,2) Accurate laparoscopic lymph node staging is dependent on a systematic approach to sampling N1 and N2 lymph node stations. (3) Stations with the highest risk of involvement are 12a, b, p and c, 13 and 16, as well as 8 and 9. (4) PATIENT: A 59-year-old man underwent stem cell transplantation for acute myeloid leukemia. Thirty-nine days later he developed acute cholecystitis, which was managed with a cholecystostomy tube...
February 6, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28167547/bacteremia-due-to-carbapenem-resistant-enterobacteriaceae-cre-a-multicenter-clinical-and-molecular-epidemiologic-analysis-in-the-nation-s-epicenter-for-cre
#19
Michael J Satlin, Liang Chen, Gopi Patel, Angela Gomez-Simmonds, Gregory Weston, Angela C Kim, Susan K Seo, Marnie E Rosenthal, Steven J Sperber, Stephen G Jenkins, Camille L Hamula, Anne-Catrin Uhlemann, Michael H Levi, Bettina C Fries, Yi-Wei Tang, Stefan Juretschko, Albert D Rojtman, Tao Hong, Barun Mathema, Michael R Jacobs, Thomas J Walsh, Robert A Bonomo, Barry N Kreiswirth
Although the New York/New Jersey (NY/NJ) area is an epicenter for carbapenem-resistant Enterobacteriaceae (CRE), there are few multicenter studies of CRE from this region. We characterized patients with CRE bacteremia in 2013 at eight NY/NJ medical centers and determined the prevalence of carbapenem resistance among Enterobacteriaceae bloodstream isolates and CRE resistance mechanisms, genetic backgrounds, capsular types (cps), and antimicrobial susceptibilities. Of 121 patients with CRE bacteremia, 50% had cancer or transplantation...
February 6, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28162932/multicenter-evaluation-of-a-national-organ-sharing-policy-for-highly-sensitized-patients-listed-for-heart-transplantation-in-canada
#20
Brian Clarke, Anique Ducharme, Nadia Giannetti, Daniel Kim, Michael McDonald, Peter Pflugfelder, Miroslaw Rajda, Mario Sénéchal, Ellie Stadnick, Mustafa Toma, Shelley Zieroth, Debra Isaac
BACKGROUND: Transplantation of sensitized recipients has been associated with increased risk of post-transplant complications. In 2010, the Canadian Cardiac Transplant Network (CCTN) created a unique status listing for highly sensitized heart transplant candidates. Status 4S listing requires calculated panel-reactive antibody (cPRA) level >80% as the sole listing criteria and enables geographic expansion of the donor pool by providing national access. In this study, we describe patient characteristics and outcomes of those transplanted as Status 4S in Canada...
January 6, 2017: Journal of Heart and Lung Transplantation
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